init commit

store/db/postgres/activity.go

@@ -0,0 +1,81 @@
+package postgres
+
+import (
+	"context"
+	"strings"
+
+	"github.com/pkg/errors"
+	"google.golang.org/protobuf/encoding/protojson"
+
+	storepb "github.com/usememos/memos/proto/gen/store"
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) CreateActivity(ctx context.Context, create *store.Activity) (*store.Activity, error) {
+	payloadString := "{}"
+	if create.Payload != nil {
+		bytes, err := protojson.Marshal(create.Payload)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to marshal activity payload")
+		}
+		payloadString = string(bytes)
+	}
+
+	fields := []string{"creator_id", "type", "level", "payload"}
+	args := []any{create.CreatorID, create.Type.String(), create.Level.String(), payloadString}
+	stmt := "INSERT INTO activity (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id, created_ts"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
+		&create.ID,
+		&create.CreatedTs,
+	); err != nil {
+		return nil, err
+	}
+
+	return create, nil
+}
+
+func (d *DB) ListActivities(ctx context.Context, find *store.FindActivity) ([]*store.Activity, error) {
+	where, args := []string{"1 = 1"}, []any{}
+	if find.ID != nil {
+		where, args = append(where, "id = "+placeholder(len(args)+1)), append(args, *find.ID)
+	}
+	if find.Type != nil {
+		where, args = append(where, "type = "+placeholder(len(args)+1)), append(args, find.Type.String())
+	}
+
+	query := "SELECT id, creator_id, type, level, payload, created_ts FROM activity WHERE " + strings.Join(where, " AND ") + " ORDER BY created_ts DESC"
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := []*store.Activity{}
+	for rows.Next() {
+		activity := &store.Activity{}
+		var payloadBytes []byte
+		if err := rows.Scan(
+			&activity.ID,
+			&activity.CreatorID,
+			&activity.Type,
+			&activity.Level,
+			&payloadBytes,
+			&activity.CreatedTs,
+		); err != nil {
+			return nil, err
+		}
+
+		payload := &storepb.ActivityPayload{}
+		if err := protojsonUnmarshaler.Unmarshal(payloadBytes, payload); err != nil {
+			return nil, err
+		}
+		activity.Payload = payload
+		list = append(list, activity)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}

store/db/postgres/attachment.go

@@ -0,0 +1,186 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"github.com/pkg/errors"
+	"google.golang.org/protobuf/encoding/protojson"
+
+	storepb "github.com/usememos/memos/proto/gen/store"
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) CreateAttachment(ctx context.Context, create *store.Attachment) (*store.Attachment, error) {
+	fields := []string{"uid", "filename", "blob", "type", "size", "creator_id", "memo_id", "storage_type", "reference", "payload"}
+	storageType := ""
+	if create.StorageType != storepb.AttachmentStorageType_ATTACHMENT_STORAGE_TYPE_UNSPECIFIED {
+		storageType = create.StorageType.String()
+	}
+	payloadString := "{}"
+	if create.Payload != nil {
+		bytes, err := protojson.Marshal(create.Payload)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to marshal attachment payload")
+		}
+		payloadString = string(bytes)
+	}
+	args := []any{create.UID, create.Filename, create.Blob, create.Type, create.Size, create.CreatorID, create.MemoID, storageType, create.Reference, payloadString}
+
+	stmt := "INSERT INTO resource (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id, created_ts, updated_ts"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(&create.ID, &create.CreatedTs, &create.UpdatedTs); err != nil {
+		return nil, err
+	}
+	return create, nil
+}
+
+func (d *DB) ListAttachments(ctx context.Context, find *store.FindAttachment) ([]*store.Attachment, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if v := find.ID; v != nil {
+		where, args = append(where, "id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.UID; v != nil {
+		where, args = append(where, "uid = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.CreatorID; v != nil {
+		where, args = append(where, "creator_id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.Filename; v != nil {
+		where, args = append(where, "filename = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.FilenameSearch; v != nil {
+		where, args = append(where, "filename LIKE "+placeholder(len(args)+1)), append(args, fmt.Sprintf("%%%s%%", *v))
+	}
+	if v := find.MemoID; v != nil {
+		where, args = append(where, "memo_id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if find.HasRelatedMemo {
+		where = append(where, "memo_id IS NOT NULL")
+	}
+	if v := find.StorageType; v != nil {
+		where, args = append(where, "storage_type = "+placeholder(len(args)+1)), append(args, v.String())
+	}
+
+	fields := []string{"id", "uid", "filename", "type", "size", "creator_id", "created_ts", "updated_ts", "memo_id", "storage_type", "reference", "payload"}
+	if find.GetBlob {
+		fields = append(fields, "blob")
+	}
+
+	query := fmt.Sprintf(`
+		SELECT
+			%s
+		FROM resource
+		WHERE %s
+		ORDER BY updated_ts DESC
+	`, strings.Join(fields, ", "), strings.Join(where, " AND "))
+	if find.Limit != nil {
+		query = fmt.Sprintf("%s LIMIT %d", query, *find.Limit)
+		if find.Offset != nil {
+			query = fmt.Sprintf("%s OFFSET %d", query, *find.Offset)
+		}
+	}
+
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := make([]*store.Attachment, 0)
+	for rows.Next() {
+		attachment := store.Attachment{}
+		var memoID sql.NullInt32
+		var storageType string
+		var payloadBytes []byte
+		dests := []any{
+			&attachment.ID,
+			&attachment.UID,
+			&attachment.Filename,
+			&attachment.Type,
+			&attachment.Size,
+			&attachment.CreatorID,
+			&attachment.CreatedTs,
+			&attachment.UpdatedTs,
+			&memoID,
+			&storageType,
+			&attachment.Reference,
+			&payloadBytes,
+		}
+		if find.GetBlob {
+			dests = append(dests, &attachment.Blob)
+		}
+		if err := rows.Scan(dests...); err != nil {
+			return nil, err
+		}
+
+		if memoID.Valid {
+			attachment.MemoID = &memoID.Int32
+		}
+		attachment.StorageType = storepb.AttachmentStorageType(storepb.AttachmentStorageType_value[storageType])
+		payload := &storepb.AttachmentPayload{}
+		if err := protojsonUnmarshaler.Unmarshal(payloadBytes, payload); err != nil {
+			return nil, err
+		}
+		attachment.Payload = payload
+		list = append(list, &attachment)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) UpdateAttachment(ctx context.Context, update *store.UpdateAttachment) error {
+	set, args := []string{}, []any{}
+
+	if v := update.UID; v != nil {
+		set, args = append(set, "uid = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.UpdatedTs; v != nil {
+		set, args = append(set, "updated_ts = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Filename; v != nil {
+		set, args = append(set, "filename = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.MemoID; v != nil {
+		set, args = append(set, "memo_id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Reference; v != nil {
+		set, args = append(set, "reference = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Payload; v != nil {
+		bytes, err := protojson.Marshal(v)
+		if err != nil {
+			return errors.Wrap(err, "failed to marshal attachment payload")
+		}
+		set, args = append(set, "payload = "+placeholder(len(args)+1)), append(args, string(bytes))
+	}
+
+	stmt := `UPDATE resource SET ` + strings.Join(set, ", ") + ` WHERE id = ` + placeholder(len(args)+1)
+	args = append(args, update.ID)
+	result, err := d.db.ExecContext(ctx, stmt, args...)
+	if err != nil {
+		return err
+	}
+	if _, err := result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (d *DB) DeleteAttachment(ctx context.Context, delete *store.DeleteAttachment) error {
+	stmt := `DELETE FROM resource WHERE id = $1`
+	result, err := d.db.ExecContext(ctx, stmt, delete.ID)
+	if err != nil {
+		return err
+	}
+	if _, err := result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}

store/db/postgres/common.go

@@ -0,0 +1,26 @@
+package postgres
+
+import (
+	"fmt"
+	"strings"
+
+	"google.golang.org/protobuf/encoding/protojson"
+)
+
+var (
+	protojsonUnmarshaler = protojson.UnmarshalOptions{
+		DiscardUnknown: true,
+	}
+)
+
+func placeholder(n int) string {
+	return "$" + fmt.Sprint(n)
+}
+
+func placeholders(n int) string {
+	list := []string{}
+	for i := 0; i < n; i++ {
+		list = append(list, placeholder(i+1))
+	}
+	return strings.Join(list, ", ")
+}

store/db/postgres/idp.go

@@ -0,0 +1,117 @@
+package postgres
+
+import (
+	"context"
+	"strings"
+
+	storepb "github.com/usememos/memos/proto/gen/store"
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) CreateIdentityProvider(ctx context.Context, create *store.IdentityProvider) (*store.IdentityProvider, error) {
+	fields := []string{"name", "type", "identifier_filter", "config"}
+	args := []any{create.Name, create.Type.String(), create.IdentifierFilter, create.Config}
+	stmt := "INSERT INTO idp (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(&create.ID); err != nil {
+		return nil, err
+	}
+
+	identityProvider := create
+	return identityProvider, nil
+}
+
+func (d *DB) ListIdentityProviders(ctx context.Context, find *store.FindIdentityProvider) ([]*store.IdentityProvider, error) {
+	where, args := []string{"1 = 1"}, []any{}
+	if v := find.ID; v != nil {
+		where, args = append(where, "id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+
+	rows, err := d.db.QueryContext(ctx, `
+		SELECT
+			id,
+			name,
+			type,
+			identifier_filter,
+			config
+		FROM idp
+		WHERE `+strings.Join(where, " AND ")+` ORDER BY id ASC`,
+		args...,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var identityProviders []*store.IdentityProvider
+	for rows.Next() {
+		var identityProvider store.IdentityProvider
+		var typeString string
+		if err := rows.Scan(
+			&identityProvider.ID,
+			&identityProvider.Name,
+			&typeString,
+			&identityProvider.IdentifierFilter,
+			&identityProvider.Config,
+		); err != nil {
+			return nil, err
+		}
+
+		identityProvider.Type = storepb.IdentityProvider_Type(storepb.IdentityProvider_Type_value[typeString])
+		identityProviders = append(identityProviders, &identityProvider)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return identityProviders, nil
+}
+
+func (d *DB) UpdateIdentityProvider(ctx context.Context, update *store.UpdateIdentityProvider) (*store.IdentityProvider, error) {
+	set, args := []string{}, []any{}
+	if v := update.Name; v != nil {
+		set, args = append(set, "name = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.IdentifierFilter; v != nil {
+		set, args = append(set, "identifier_filter = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Config; v != nil {
+		set, args = append(set, "config = "+placeholder(len(args)+1)), append(args, *v)
+	}
+
+	stmt := `
+		UPDATE idp
+		SET ` + strings.Join(set, ", ") + `
+		WHERE id = ` + placeholder(len(args)+1) + `
+		RETURNING id, name, type, identifier_filter, config
+	`
+	args = append(args, update.ID)
+
+	var identityProvider store.IdentityProvider
+	var typeString string
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
+		&identityProvider.ID,
+		&identityProvider.Name,
+		&typeString,
+		&identityProvider.IdentifierFilter,
+		&identityProvider.Config,
+	); err != nil {
+		return nil, err
+	}
+
+	identityProvider.Type = storepb.IdentityProvider_Type(storepb.IdentityProvider_Type_value[typeString])
+	return &identityProvider, nil
+}
+
+func (d *DB) DeleteIdentityProvider(ctx context.Context, delete *store.DeleteIdentityProvider) error {
+	where, args := []string{"id = $1"}, []any{delete.ID}
+	stmt := `DELETE FROM idp WHERE ` + strings.Join(where, " AND ")
+	result, err := d.db.ExecContext(ctx, stmt, args...)
+	if err != nil {
+		return err
+	}
+	if _, err = result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}

store/db/postgres/inbox.go

@@ -0,0 +1,141 @@
+package postgres
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/pkg/errors"
+	"google.golang.org/protobuf/encoding/protojson"
+
+	storepb "github.com/usememos/memos/proto/gen/store"
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) CreateInbox(ctx context.Context, create *store.Inbox) (*store.Inbox, error) {
+	messageString := "{}"
+	if create.Message != nil {
+		bytes, err := protojson.Marshal(create.Message)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to marshal inbox message")
+		}
+		messageString = string(bytes)
+	}
+
+	fields := []string{"sender_id", "receiver_id", "status", "message"}
+	args := []any{create.SenderID, create.ReceiverID, create.Status, messageString}
+	stmt := "INSERT INTO inbox (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id, created_ts"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
+		&create.ID,
+		&create.CreatedTs,
+	); err != nil {
+		return nil, err
+	}
+
+	return create, nil
+}
+
+func (d *DB) ListInboxes(ctx context.Context, find *store.FindInbox) ([]*store.Inbox, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if find.ID != nil {
+		where, args = append(where, "id = "+placeholder(len(args)+1)), append(args, *find.ID)
+	}
+	if find.SenderID != nil {
+		where, args = append(where, "sender_id = "+placeholder(len(args)+1)), append(args, *find.SenderID)
+	}
+	if find.ReceiverID != nil {
+		where, args = append(where, "receiver_id = "+placeholder(len(args)+1)), append(args, *find.ReceiverID)
+	}
+	if find.Status != nil {
+		where, args = append(where, "status = "+placeholder(len(args)+1)), append(args, *find.Status)
+	}
+
+	query := "SELECT id, created_ts, sender_id, receiver_id, status, message FROM inbox WHERE " + strings.Join(where, " AND ") + " ORDER BY created_ts DESC"
+	if find.Limit != nil {
+		query = fmt.Sprintf("%s LIMIT %d", query, *find.Limit)
+		if find.Offset != nil {
+			query = fmt.Sprintf("%s OFFSET %d", query, *find.Offset)
+		}
+	}
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := []*store.Inbox{}
+	for rows.Next() {
+		inbox := &store.Inbox{}
+		var messageBytes []byte
+		if err := rows.Scan(
+			&inbox.ID,
+			&inbox.CreatedTs,
+			&inbox.SenderID,
+			&inbox.ReceiverID,
+			&inbox.Status,
+			&messageBytes,
+		); err != nil {
+			return nil, err
+		}
+
+		message := &storepb.InboxMessage{}
+		if err := protojsonUnmarshaler.Unmarshal(messageBytes, message); err != nil {
+			return nil, err
+		}
+		inbox.Message = message
+		list = append(list, inbox)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) GetInbox(ctx context.Context, find *store.FindInbox) (*store.Inbox, error) {
+	list, err := d.ListInboxes(ctx, find)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to get inbox")
+	}
+	if len(list) != 1 {
+		return nil, errors.Errorf("unexpected inbox count: %d", len(list))
+	}
+	return list[0], nil
+}
+
+func (d *DB) UpdateInbox(ctx context.Context, update *store.UpdateInbox) (*store.Inbox, error) {
+	set, args := []string{"status = $1"}, []any{update.Status.String()}
+	args = append(args, update.ID)
+	query := "UPDATE inbox SET " + strings.Join(set, ", ") + " WHERE id = $2 RETURNING id, created_ts, sender_id, receiver_id, status, message"
+	inbox := &store.Inbox{}
+	var messageBytes []byte
+	if err := d.db.QueryRowContext(ctx, query, args...).Scan(
+		&inbox.ID,
+		&inbox.CreatedTs,
+		&inbox.SenderID,
+		&inbox.ReceiverID,
+		&inbox.Status,
+		&messageBytes,
+	); err != nil {
+		return nil, err
+	}
+	message := &storepb.InboxMessage{}
+	if err := protojsonUnmarshaler.Unmarshal(messageBytes, message); err != nil {
+		return nil, err
+	}
+	inbox.Message = message
+	return inbox, nil
+}
+
+func (d *DB) DeleteInbox(ctx context.Context, delete *store.DeleteInbox) error {
+	result, err := d.db.ExecContext(ctx, "DELETE FROM inbox WHERE id = $1", delete.ID)
+	if err != nil {
+		return err
+	}
+	if _, err := result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}

store/db/postgres/memo.go

@@ -0,0 +1,279 @@
+package postgres
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/pkg/errors"
+	"google.golang.org/protobuf/encoding/protojson"
+
+	"github.com/usememos/memos/plugin/filter"
+	storepb "github.com/usememos/memos/proto/gen/store"
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) CreateMemo(ctx context.Context, create *store.Memo) (*store.Memo, error) {
+	fields := []string{"uid", "creator_id", "content", "visibility", "payload"}
+	payload := "{}"
+	if create.Payload != nil {
+		payloadBytes, err := protojson.Marshal(create.Payload)
+		if err != nil {
+			return nil, err
+		}
+		payload = string(payloadBytes)
+	}
+	args := []any{create.UID, create.CreatorID, create.Content, create.Visibility, payload}
+
+	stmt := "INSERT INTO memo (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id, created_ts, updated_ts, row_status"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
+		&create.ID,
+		&create.CreatedTs,
+		&create.UpdatedTs,
+		&create.RowStatus,
+	); err != nil {
+		return nil, err
+	}
+
+	return create, nil
+}
+
+func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if v := find.ID; v != nil {
+		where, args = append(where, "memo.id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.UID; v != nil {
+		where, args = append(where, "memo.uid = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.CreatorID; v != nil {
+		where, args = append(where, "memo.creator_id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.RowStatus; v != nil {
+		where, args = append(where, "memo.row_status = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.CreatedTsBefore; v != nil {
+		where, args = append(where, "memo.created_ts < "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.CreatedTsAfter; v != nil {
+		where, args = append(where, "memo.created_ts > "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.UpdatedTsBefore; v != nil {
+		where, args = append(where, "memo.updated_ts < "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.UpdatedTsAfter; v != nil {
+		where, args = append(where, "memo.updated_ts > "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.ContentSearch; len(v) != 0 {
+		for _, s := range v {
+			where, args = append(where, "memo.content ILIKE "+placeholder(len(args)+1)), append(args, fmt.Sprintf("%%%s%%", s))
+		}
+	}
+	if v := find.VisibilityList; len(v) != 0 {
+		holders := []string{}
+		for _, visibility := range v {
+			holders = append(holders, placeholder(len(args)+1))
+			args = append(args, visibility.String())
+		}
+		where = append(where, fmt.Sprintf("memo.visibility in (%s)", strings.Join(holders, ", ")))
+	}
+	if v := find.Pinned; v != nil {
+		where, args = append(where, "memo.pinned = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.PayloadFind; v != nil {
+		if v.Raw != nil {
+			where, args = append(where, "memo.payload = "+placeholder(len(args)+1)), append(args, *v.Raw)
+		}
+		if len(v.TagSearch) != 0 {
+			for _, tag := range v.TagSearch {
+				where, args = append(where, "EXISTS (SELECT 1 FROM jsonb_array_elements(memo.payload->'tags') AS tag WHERE tag::text = "+placeholder(len(args)+1)+" OR tag::text LIKE "+placeholder(len(args)+2)+")"), append(args, fmt.Sprintf(`"%s"`, tag), fmt.Sprintf(`"%s/%%"`, tag))
+			}
+		}
+		if v.HasLink {
+			where = append(where, "(memo.payload->'property'->>'hasLink')::BOOLEAN IS TRUE")
+		}
+		if v.HasTaskList {
+			where = append(where, "(memo.payload->'property'->>'hasTaskList')::BOOLEAN IS TRUE")
+		}
+		if v.HasCode {
+			where = append(where, "(memo.payload->'property'->>'hasCode')::BOOLEAN IS TRUE")
+		}
+		if v.HasIncompleteTasks {
+			where = append(where, "(memo.payload->'property'->>'hasIncompleteTasks')::BOOLEAN IS TRUE")
+		}
+	}
+	if v := find.Filter; v != nil {
+		// Parse filter string and return the parsed expression.
+		// The filter string should be a CEL expression.
+		parsedExpr, err := filter.Parse(*v, filter.MemoFilterCELAttributes...)
+		if err != nil {
+			return nil, err
+		}
+		convertCtx := filter.NewConvertContext()
+		convertCtx.ArgsOffset = len(args)
+		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
+		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
+			return nil, err
+		}
+		condition := convertCtx.Buffer.String()
+		if condition != "" {
+			where = append(where, fmt.Sprintf("(%s)", condition))
+			args = append(args, convertCtx.Args...)
+		}
+	}
+	if find.ExcludeComments {
+		where = append(where, "memo_relation.related_memo_id IS NULL")
+	}
+
+	order := "DESC"
+	if find.OrderByTimeAsc {
+		order = "ASC"
+	}
+	orderBy := []string{}
+	if find.OrderByPinned {
+		orderBy = append(orderBy, "pinned DESC")
+	}
+	if find.OrderByUpdatedTs {
+		orderBy = append(orderBy, "updated_ts "+order)
+	} else {
+		orderBy = append(orderBy, "created_ts "+order)
+	}
+	fields := []string{
+		`memo.id AS id`,
+		`memo.uid AS uid`,
+		`memo.creator_id AS creator_id`,
+		`memo.created_ts AS created_ts`,
+		`memo.updated_ts AS updated_ts`,
+		`memo.row_status AS row_status`,
+		`memo.visibility AS visibility`,
+		`memo.pinned AS pinned`,
+		`memo.payload AS payload`,
+		`memo_relation.related_memo_id AS parent_id`,
+	}
+	if !find.ExcludeContent {
+		fields = append(fields, `memo.content AS content`)
+	}
+
+	query := `SELECT ` + strings.Join(fields, ", ") + `
+		FROM memo
+		LEFT JOIN memo_relation ON memo.id = memo_relation.memo_id AND memo_relation.type = 'COMMENT'
+		WHERE ` + strings.Join(where, " AND ") + `
+		ORDER BY ` + strings.Join(orderBy, ", ")
+	if find.Limit != nil {
+		query = fmt.Sprintf("%s LIMIT %d", query, *find.Limit)
+		if find.Offset != nil {
+			query = fmt.Sprintf("%s OFFSET %d", query, *find.Offset)
+		}
+	}
+
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := make([]*store.Memo, 0)
+	for rows.Next() {
+		var memo store.Memo
+		var payloadBytes []byte
+		dests := []any{
+			&memo.ID,
+			&memo.UID,
+			&memo.CreatorID,
+			&memo.CreatedTs,
+			&memo.UpdatedTs,
+			&memo.RowStatus,
+			&memo.Visibility,
+			&memo.Pinned,
+			&payloadBytes,
+			&memo.ParentID,
+		}
+		if !find.ExcludeContent {
+			dests = append(dests, &memo.Content)
+		}
+		if err := rows.Scan(dests...); err != nil {
+			return nil, err
+		}
+		payload := &storepb.MemoPayload{}
+		if err := protojsonUnmarshaler.Unmarshal(payloadBytes, payload); err != nil {
+			return nil, errors.Wrap(err, "failed to unmarshal payload")
+		}
+		memo.Payload = payload
+		list = append(list, &memo)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) GetMemo(ctx context.Context, find *store.FindMemo) (*store.Memo, error) {
+	list, err := d.ListMemos(ctx, find)
+	if err != nil {
+		return nil, err
+	}
+	if len(list) == 0 {
+		return nil, nil
+	}
+
+	memo := list[0]
+	return memo, nil
+}
+
+func (d *DB) UpdateMemo(ctx context.Context, update *store.UpdateMemo) error {
+	set, args := []string{}, []any{}
+	if v := update.UID; v != nil {
+		set, args = append(set, "uid = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.CreatedTs; v != nil {
+		set, args = append(set, "created_ts = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.UpdatedTs; v != nil {
+		set, args = append(set, "updated_ts = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.RowStatus; v != nil {
+		set, args = append(set, "row_status = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Content; v != nil {
+		set, args = append(set, "content = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Visibility; v != nil {
+		set, args = append(set, "visibility = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Pinned; v != nil {
+		set, args = append(set, "pinned = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Payload; v != nil {
+		payloadBytes, err := protojson.Marshal(v)
+		if err != nil {
+			return err
+		}
+		set, args = append(set, "payload = "+placeholder(len(args)+1)), append(args, string(payloadBytes))
+	}
+	if len(set) == 0 {
+		return nil
+	}
+
+	stmt := `UPDATE memo SET ` + strings.Join(set, ", ") + ` WHERE id = ` + placeholder(len(args)+1)
+	args = append(args, update.ID)
+	if _, err := d.db.ExecContext(ctx, stmt, args...); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (d *DB) DeleteMemo(ctx context.Context, delete *store.DeleteMemo) error {
+	where, args := []string{"id = " + placeholder(1)}, []any{delete.ID}
+	stmt := `DELETE FROM memo WHERE ` + strings.Join(where, " AND ")
+	result, err := d.db.ExecContext(ctx, stmt, args...)
+	if err != nil {
+		return errors.Wrap(err, "failed to delete memo")
+	}
+	if _, err := result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}

store/db/postgres/memo_filter.go

@@ -0,0 +1,326 @@
+package postgres
+
+import (
+	"fmt"
+	"slices"
+	"strings"
+
+	"github.com/pkg/errors"
+	exprv1 "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+
+	"github.com/usememos/memos/plugin/filter"
+)
+
+func (d *DB) ConvertExprToSQL(ctx *filter.ConvertContext, expr *exprv1.Expr) error {
+	const dbType = filter.PostgreSQLTemplate
+	// Fix: Use ctx.ArgsOffset instead of len(ctx.Args) to properly handle parameter indexing
+	_, err := d.convertWithParameterIndex(ctx, expr, dbType, ctx.ArgsOffset+1)
+	return err
+}
+
+func (d *DB) convertWithParameterIndex(ctx *filter.ConvertContext, expr *exprv1.Expr, dbType filter.TemplateDBType, paramIndex int) (int, error) {
+	if v, ok := expr.ExprKind.(*exprv1.Expr_CallExpr); ok {
+		switch v.CallExpr.Function {
+		case "_||_", "_&&_":
+			if len(v.CallExpr.Args) != 2 {
+				return paramIndex, errors.Errorf("invalid number of arguments for %s", v.CallExpr.Function)
+			}
+			if _, err := ctx.Buffer.WriteString("("); err != nil {
+				return paramIndex, err
+			}
+			newParamIndex, err := d.convertWithParameterIndex(ctx, v.CallExpr.Args[0], dbType, paramIndex)
+			if err != nil {
+				return paramIndex, err
+			}
+			operator := "AND"
+			if v.CallExpr.Function == "_||_" {
+				operator = "OR"
+			}
+			if _, err := ctx.Buffer.WriteString(fmt.Sprintf(" %s ", operator)); err != nil {
+				return paramIndex, err
+			}
+			newParamIndex, err = d.convertWithParameterIndex(ctx, v.CallExpr.Args[1], dbType, newParamIndex)
+			if err != nil {
+				return paramIndex, err
+			}
+			if _, err := ctx.Buffer.WriteString(")"); err != nil {
+				return paramIndex, err
+			}
+			return newParamIndex, nil
+		case "!_":
+			if len(v.CallExpr.Args) != 1 {
+				return paramIndex, errors.Errorf("invalid number of arguments for %s", v.CallExpr.Function)
+			}
+			if _, err := ctx.Buffer.WriteString("NOT ("); err != nil {
+				return paramIndex, err
+			}
+			newParamIndex, err := d.convertWithParameterIndex(ctx, v.CallExpr.Args[0], dbType, paramIndex)
+			if err != nil {
+				return paramIndex, err
+			}
+			if _, err := ctx.Buffer.WriteString(")"); err != nil {
+				return paramIndex, err
+			}
+			return newParamIndex, nil
+		case "_==_", "_!=_", "_<_", "_>_", "_<=_", "_>=_":
+			if len(v.CallExpr.Args) != 2 {
+				return paramIndex, errors.Errorf("invalid number of arguments for %s", v.CallExpr.Function)
+			}
+			// Check if the left side is a function call like size(tags)
+			if leftCallExpr, ok := v.CallExpr.Args[0].ExprKind.(*exprv1.Expr_CallExpr); ok {
+				if leftCallExpr.CallExpr.Function == "size" {
+					// Handle size(tags) comparison
+					if len(leftCallExpr.CallExpr.Args) != 1 {
+						return paramIndex, errors.New("size function requires exactly one argument")
+					}
+					identifier, err := filter.GetIdentExprName(leftCallExpr.CallExpr.Args[0])
+					if err != nil {
+						return paramIndex, err
+					}
+					if identifier != "tags" {
+						return paramIndex, errors.Errorf("size function only supports 'tags' identifier, got: %s", identifier)
+					}
+					value, err := filter.GetExprValue(v.CallExpr.Args[1])
+					if err != nil {
+						return paramIndex, err
+					}
+					valueInt, ok := value.(int64)
+					if !ok {
+						return paramIndex, errors.New("size comparison value must be an integer")
+					}
+					operator := d.getComparisonOperator(v.CallExpr.Function)
+
+					if _, err := ctx.Buffer.WriteString(fmt.Sprintf("%s %s %s",
+						filter.GetSQL("json_array_length", dbType), operator,
+						filter.GetParameterPlaceholder(dbType, paramIndex))); err != nil {
+						return paramIndex, err
+					}
+					ctx.Args = append(ctx.Args, valueInt)
+					return paramIndex + 1, nil
+				}
+			}
+
+			identifier, err := filter.GetIdentExprName(v.CallExpr.Args[0])
+			if err != nil {
+				return paramIndex, err
+			}
+			if !slices.Contains([]string{"creator_id", "created_ts", "updated_ts", "visibility", "content", "has_task_list"}, identifier) {
+				return paramIndex, errors.Errorf("invalid identifier for %s", v.CallExpr.Function)
+			}
+			value, err := filter.GetExprValue(v.CallExpr.Args[1])
+			if err != nil {
+				return paramIndex, err
+			}
+			operator := d.getComparisonOperator(v.CallExpr.Function)
+
+			if identifier == "created_ts" || identifier == "updated_ts" {
+				valueInt, ok := value.(int64)
+				if !ok {
+					return paramIndex, errors.New("invalid integer timestamp value")
+				}
+
+				timestampSQL := fmt.Sprintf(filter.GetSQL("timestamp_field", dbType), identifier)
+				if _, err := ctx.Buffer.WriteString(fmt.Sprintf("%s %s %s", timestampSQL, operator,
+					filter.GetParameterPlaceholder(dbType, paramIndex))); err != nil {
+					return paramIndex, err
+				}
+				ctx.Args = append(ctx.Args, valueInt)
+				return paramIndex + 1, nil
+			} else if identifier == "visibility" || identifier == "content" {
+				if operator != "=" && operator != "!=" {
+					return paramIndex, errors.Errorf("invalid operator for %s", v.CallExpr.Function)
+				}
+				valueStr, ok := value.(string)
+				if !ok {
+					return paramIndex, errors.New("invalid string value")
+				}
+
+				var sqlTemplate string
+				if identifier == "visibility" {
+					sqlTemplate = filter.GetSQL("table_prefix", dbType) + ".visibility"
+				} else if identifier == "content" {
+					sqlTemplate = filter.GetSQL("content_like", dbType)
+					if _, err := ctx.Buffer.WriteString(sqlTemplate); err != nil {
+						return paramIndex, err
+					}
+					ctx.Args = append(ctx.Args, fmt.Sprintf("%%%s%%", valueStr))
+					return paramIndex + 1, nil
+				}
+				if _, err := ctx.Buffer.WriteString(fmt.Sprintf("%s %s %s", sqlTemplate, operator,
+					filter.GetParameterPlaceholder(dbType, paramIndex))); err != nil {
+					return paramIndex, err
+				}
+				ctx.Args = append(ctx.Args, valueStr)
+				return paramIndex + 1, nil
+			} else if identifier == "creator_id" {
+				if operator != "=" && operator != "!=" {
+					return paramIndex, errors.Errorf("invalid operator for %s", v.CallExpr.Function)
+				}
+				valueInt, ok := value.(int64)
+				if !ok {
+					return paramIndex, errors.New("invalid int value")
+				}
+
+				sqlTemplate := filter.GetSQL("table_prefix", dbType) + ".creator_id"
+				if _, err := ctx.Buffer.WriteString(fmt.Sprintf("%s %s %s", sqlTemplate, operator,
+					filter.GetParameterPlaceholder(dbType, paramIndex))); err != nil {
+					return paramIndex, err
+				}
+				ctx.Args = append(ctx.Args, valueInt)
+				return paramIndex + 1, nil
+			} else if identifier == "has_task_list" {
+				if operator != "=" && operator != "!=" {
+					return paramIndex, errors.Errorf("invalid operator for %s", v.CallExpr.Function)
+				}
+				valueBool, ok := value.(bool)
+				if !ok {
+					return paramIndex, errors.New("invalid boolean value for has_task_list")
+				}
+				// Use parameterized template for boolean comparison (PostgreSQL only)
+				placeholder := filter.GetParameterPlaceholder(dbType, paramIndex)
+				sqlTemplate := fmt.Sprintf(filter.GetSQL("boolean_compare", dbType), operator)
+				sqlTemplate = strings.Replace(sqlTemplate, "?", placeholder, 1)
+				if _, err := ctx.Buffer.WriteString(sqlTemplate); err != nil {
+					return paramIndex, err
+				}
+				ctx.Args = append(ctx.Args, valueBool)
+				return paramIndex + 1, nil
+			}
+		case "@in":
+			if len(v.CallExpr.Args) != 2 {
+				return paramIndex, errors.Errorf("invalid number of arguments for %s", v.CallExpr.Function)
+			}
+
+			// Check if this is "element in collection" syntax
+			if identifier, err := filter.GetIdentExprName(v.CallExpr.Args[1]); err == nil {
+				// This is "element in collection" - the second argument is the collection
+				if !slices.Contains([]string{"tags"}, identifier) {
+					return paramIndex, errors.Errorf("invalid collection identifier for %s: %s", v.CallExpr.Function, identifier)
+				}
+
+				if identifier == "tags" {
+					// Handle "element" in tags
+					element, err := filter.GetConstValue(v.CallExpr.Args[0])
+					if err != nil {
+						return paramIndex, errors.Errorf("first argument must be a constant value for 'element in tags': %v", err)
+					}
+					placeholder := filter.GetParameterPlaceholder(dbType, paramIndex)
+					sql := strings.Replace(filter.GetSQL("json_contains_element", dbType), "?", placeholder, 1)
+					if _, err := ctx.Buffer.WriteString(sql); err != nil {
+						return paramIndex, err
+					}
+					ctx.Args = append(ctx.Args, filter.GetParameterValue(dbType, "json_contains_element", element))
+					return paramIndex + 1, nil
+				}
+				return paramIndex, nil
+			}
+
+			// Original logic for "identifier in [list]" syntax
+			identifier, err := filter.GetIdentExprName(v.CallExpr.Args[0])
+			if err != nil {
+				return paramIndex, err
+			}
+			if !slices.Contains([]string{"tag", "visibility"}, identifier) {
+				return paramIndex, errors.Errorf("invalid identifier for %s", v.CallExpr.Function)
+			}
+
+			values := []any{}
+			for _, element := range v.CallExpr.Args[1].GetListExpr().Elements {
+				value, err := filter.GetConstValue(element)
+				if err != nil {
+					return paramIndex, err
+				}
+				values = append(values, value)
+			}
+			if identifier == "tag" {
+				subconditions := []string{}
+				args := []any{}
+				currentParamIndex := paramIndex
+				for _, v := range values {
+					// Use parameter index for each placeholder
+					placeholder := filter.GetParameterPlaceholder(dbType, currentParamIndex)
+					subcondition := strings.Replace(filter.GetSQL("json_contains_tag", dbType), "?", placeholder, 1)
+					subconditions = append(subconditions, subcondition)
+					args = append(args, filter.GetParameterValue(dbType, "json_contains_tag", v))
+					currentParamIndex++
+				}
+				if len(subconditions) == 1 {
+					if _, err := ctx.Buffer.WriteString(subconditions[0]); err != nil {
+						return paramIndex, err
+					}
+				} else {
+					if _, err := ctx.Buffer.WriteString(fmt.Sprintf("(%s)", strings.Join(subconditions, " OR "))); err != nil {
+						return paramIndex, err
+					}
+				}
+				ctx.Args = append(ctx.Args, args...)
+				return paramIndex + len(args), nil
+			} else if identifier == "visibility" {
+				placeholders := filter.FormatPlaceholders(dbType, len(values), paramIndex)
+				visibilitySQL := fmt.Sprintf(filter.GetSQL("visibility_in", dbType), strings.Join(placeholders, ","))
+				if _, err := ctx.Buffer.WriteString(visibilitySQL); err != nil {
+					return paramIndex, err
+				}
+				ctx.Args = append(ctx.Args, values...)
+				return paramIndex + len(values), nil
+			}
+		case "contains":
+			if len(v.CallExpr.Args) != 1 {
+				return paramIndex, errors.Errorf("invalid number of arguments for %s", v.CallExpr.Function)
+			}
+			identifier, err := filter.GetIdentExprName(v.CallExpr.Target)
+			if err != nil {
+				return paramIndex, err
+			}
+			if identifier != "content" {
+				return paramIndex, errors.Errorf("invalid identifier for %s", v.CallExpr.Function)
+			}
+			arg, err := filter.GetConstValue(v.CallExpr.Args[0])
+			if err != nil {
+				return paramIndex, err
+			}
+			placeholder := filter.GetParameterPlaceholder(dbType, paramIndex)
+			sql := strings.Replace(filter.GetSQL("content_like", dbType), "?", placeholder, 1)
+			if _, err := ctx.Buffer.WriteString(sql); err != nil {
+				return paramIndex, err
+			}
+			ctx.Args = append(ctx.Args, fmt.Sprintf("%%%s%%", arg))
+			return paramIndex + 1, nil
+		}
+	} else if v, ok := expr.ExprKind.(*exprv1.Expr_IdentExpr); ok {
+		identifier := v.IdentExpr.GetName()
+		if !slices.Contains([]string{"pinned", "has_task_list"}, identifier) {
+			return paramIndex, errors.Errorf("invalid identifier %s", identifier)
+		}
+		if identifier == "pinned" {
+			if _, err := ctx.Buffer.WriteString(filter.GetSQL("table_prefix", dbType) + ".pinned IS TRUE"); err != nil {
+				return paramIndex, err
+			}
+		} else if identifier == "has_task_list" {
+			// Handle has_task_list as a standalone boolean identifier
+			if _, err := ctx.Buffer.WriteString(filter.GetSQL("boolean_check", dbType)); err != nil {
+				return paramIndex, err
+			}
+		}
+	}
+	return paramIndex, nil
+}
+
+func (*DB) getComparisonOperator(function string) string {
+	switch function {
+	case "_==_":
+		return "="
+	case "_!=_":
+		return "!="
+	case "_<_":
+		return "<"
+	case "_>_":
+		return ">"
+	case "_<=_":
+		return "<="
+	case "_>=_":
+		return ">="
+	default:
+		return "="
+	}
+}

store/db/postgres/memo_filter_test.go

@@ -0,0 +1,130 @@
+package postgres
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/usememos/memos/plugin/filter"
+)
+
+func TestRestoreExprToSQL(t *testing.T) {
+	tests := []struct {
+		filter string
+		want   string
+		args   []any
+	}{
+		{
+			filter: `tag in ["tag1", "tag2"]`,
+			want:   "(memo.payload->'tags' @> jsonb_build_array($1) OR memo.payload->'tags' @> jsonb_build_array($2))",
+			args:   []any{"tag1", "tag2"},
+		},
+		{
+			filter: `!(tag in ["tag1", "tag2"])`,
+			want:   `NOT ((memo.payload->'tags' @> jsonb_build_array($1) OR memo.payload->'tags' @> jsonb_build_array($2)))`,
+			args:   []any{"tag1", "tag2"},
+		},
+		{
+			filter: `content.contains("memos")`,
+			want:   "memo.content ILIKE $1",
+			args:   []any{"%memos%"},
+		},
+		{
+			filter: `visibility in ["PUBLIC"]`,
+			want:   "memo.visibility IN ($1)",
+			args:   []any{"PUBLIC"},
+		},
+		{
+			filter: `visibility in ["PUBLIC", "PRIVATE"]`,
+			want:   "memo.visibility IN ($1,$2)",
+			args:   []any{"PUBLIC", "PRIVATE"},
+		},
+		{
+			filter: `tag in ['tag1'] || content.contains('hello')`,
+			want:   "(memo.payload->'tags' @> jsonb_build_array($1) OR memo.content ILIKE $2)",
+			args:   []any{"tag1", "%hello%"},
+		},
+		{
+			filter: `1`,
+			want:   "",
+			args:   []any{},
+		},
+		{
+			filter: `pinned`,
+			want:   "memo.pinned IS TRUE",
+			args:   []any{},
+		},
+		{
+			filter: `has_task_list`,
+			want:   "(memo.payload->'property'->>'hasTaskList')::boolean IS TRUE",
+			args:   []any{},
+		},
+		{
+			filter: `has_task_list == true`,
+			want:   "(memo.payload->'property'->>'hasTaskList')::boolean = $1",
+			args:   []any{true},
+		},
+		{
+			filter: `has_task_list != false`,
+			want:   "(memo.payload->'property'->>'hasTaskList')::boolean != $1",
+			args:   []any{false},
+		},
+		{
+			filter: `has_task_list == false`,
+			want:   "(memo.payload->'property'->>'hasTaskList')::boolean = $1",
+			args:   []any{false},
+		},
+		{
+			filter: `!has_task_list`,
+			want:   "NOT ((memo.payload->'property'->>'hasTaskList')::boolean IS TRUE)",
+			args:   []any{},
+		},
+		{
+			filter: `has_task_list && pinned`,
+			want:   "((memo.payload->'property'->>'hasTaskList')::boolean IS TRUE AND memo.pinned IS TRUE)",
+			args:   []any{},
+		},
+		{
+			filter: `has_task_list && content.contains("todo")`,
+			want:   "((memo.payload->'property'->>'hasTaskList')::boolean IS TRUE AND memo.content ILIKE $1)",
+			args:   []any{"%todo%"},
+		},
+		{
+			filter: `created_ts > now() - 60 * 60 * 24`,
+			want:   "EXTRACT(EPOCH FROM memo.created_ts) > $1",
+			args:   []any{time.Now().Unix() - 60*60*24},
+		},
+		{
+			filter: `size(tags) == 0`,
+			want:   "jsonb_array_length(COALESCE(memo.payload->'tags', '[]'::jsonb)) = $1",
+			args:   []any{int64(0)},
+		},
+		{
+			filter: `size(tags) > 0`,
+			want:   "jsonb_array_length(COALESCE(memo.payload->'tags', '[]'::jsonb)) > $1",
+			args:   []any{int64(0)},
+		},
+		{
+			filter: `"work" in tags`,
+			want:   "memo.payload->'tags' @> jsonb_build_array($1)",
+			args:   []any{"work"},
+		},
+		{
+			filter: `size(tags) == 2`,
+			want:   "jsonb_array_length(COALESCE(memo.payload->'tags', '[]'::jsonb)) = $1",
+			args:   []any{int64(2)},
+		},
+	}
+
+	for _, tt := range tests {
+		db := &DB{}
+		parsedExpr, err := filter.Parse(tt.filter, filter.MemoFilterCELAttributes...)
+		require.NoError(t, err)
+		convertCtx := filter.NewConvertContext()
+		err = db.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr())
+		require.NoError(t, err)
+		require.Equal(t, tt.want, convertCtx.Buffer.String())
+		require.Equal(t, tt.args, convertCtx.Args)
+	}
+}

store/db/postgres/memo_relation.go

@@ -0,0 +1,124 @@
+package postgres
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/usememos/memos/plugin/filter"
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) UpsertMemoRelation(ctx context.Context, create *store.MemoRelation) (*store.MemoRelation, error) {
+	stmt := `
+		INSERT INTO memo_relation (
+			memo_id,
+			related_memo_id,
+			type
+		)
+		VALUES (` + placeholders(3) + `)
+		RETURNING memo_id, related_memo_id, type
+	`
+	memoRelation := &store.MemoRelation{}
+	if err := d.db.QueryRowContext(
+		ctx,
+		stmt,
+		create.MemoID,
+		create.RelatedMemoID,
+		create.Type,
+	).Scan(
+		&memoRelation.MemoID,
+		&memoRelation.RelatedMemoID,
+		&memoRelation.Type,
+	); err != nil {
+		return nil, err
+	}
+
+	return memoRelation, nil
+}
+
+func (d *DB) ListMemoRelations(ctx context.Context, find *store.FindMemoRelation) ([]*store.MemoRelation, error) {
+	where, args := []string{"1 = 1"}, []any{}
+	if find.MemoID != nil {
+		where, args = append(where, "memo_id = "+placeholder(len(args)+1)), append(args, find.MemoID)
+	}
+	if find.RelatedMemoID != nil {
+		where, args = append(where, "related_memo_id = "+placeholder(len(args)+1)), append(args, find.RelatedMemoID)
+	}
+	if find.Type != nil {
+		where, args = append(where, "type = "+placeholder(len(args)+1)), append(args, find.Type)
+	}
+	if find.MemoFilter != nil {
+		// Parse filter string and return the parsed expression.
+		// The filter string should be a CEL expression.
+		parsedExpr, err := filter.Parse(*find.MemoFilter, filter.MemoFilterCELAttributes...)
+		if err != nil {
+			return nil, err
+		}
+		convertCtx := filter.NewConvertContext()
+		convertCtx.ArgsOffset = len(args)
+		// ConvertExprToSQL converts the parsed expression to a SQL condition string.
+		if err := d.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
+			return nil, err
+		}
+		condition := convertCtx.Buffer.String()
+		if condition != "" {
+			where = append(where, fmt.Sprintf("memo_id IN (SELECT id FROM memo WHERE %s)", condition))
+			where = append(where, fmt.Sprintf("related_memo_id IN (SELECT id FROM memo WHERE %s)", condition))
+			args = append(args, convertCtx.Args...)
+		}
+	}
+
+	rows, err := d.db.QueryContext(ctx, `
+		SELECT
+			memo_id,
+			related_memo_id,
+			type
+		FROM memo_relation
+		WHERE `+strings.Join(where, " AND "), args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := []*store.MemoRelation{}
+	for rows.Next() {
+		memoRelation := &store.MemoRelation{}
+		if err := rows.Scan(
+			&memoRelation.MemoID,
+			&memoRelation.RelatedMemoID,
+			&memoRelation.Type,
+		); err != nil {
+			return nil, err
+		}
+		list = append(list, memoRelation)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) DeleteMemoRelation(ctx context.Context, delete *store.DeleteMemoRelation) error {
+	where, args := []string{"1 = 1"}, []any{}
+	if delete.MemoID != nil {
+		where, args = append(where, "memo_id = "+placeholder(len(args)+1)), append(args, delete.MemoID)
+	}
+	if delete.RelatedMemoID != nil {
+		where, args = append(where, "related_memo_id = "+placeholder(len(args)+1)), append(args, delete.RelatedMemoID)
+	}
+	if delete.Type != nil {
+		where, args = append(where, "type = "+placeholder(len(args)+1)), append(args, delete.Type)
+	}
+	stmt := `DELETE FROM memo_relation WHERE ` + strings.Join(where, " AND ")
+	result, err := d.db.ExecContext(ctx, stmt, args...)
+	if err != nil {
+		return err
+	}
+	if _, err = result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}

store/db/postgres/migration_history.go

@@ -0,0 +1,57 @@
+package postgres
+
+import (
+	"context"
+
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) FindMigrationHistoryList(ctx context.Context, _ *store.FindMigrationHistory) ([]*store.MigrationHistory, error) {
+	query := "SELECT version, created_ts FROM migration_history ORDER BY created_ts DESC"
+	rows, err := d.db.QueryContext(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := make([]*store.MigrationHistory, 0)
+	for rows.Next() {
+		var migrationHistory store.MigrationHistory
+		if err := rows.Scan(
+			&migrationHistory.Version,
+			&migrationHistory.CreatedTs,
+		); err != nil {
+			return nil, err
+		}
+
+		list = append(list, &migrationHistory)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) UpsertMigrationHistory(ctx context.Context, upsert *store.UpsertMigrationHistory) (*store.MigrationHistory, error) {
+	stmt := `
+		INSERT INTO migration_history (
+			version
+		)
+		VALUES ($1)
+		ON CONFLICT(version) DO UPDATE
+		SET
+			version=EXCLUDED.version
+		RETURNING version, created_ts
+	`
+	var migrationHistory store.MigrationHistory
+	if err := d.db.QueryRowContext(ctx, stmt, upsert.Version).Scan(
+		&migrationHistory.Version,
+		&migrationHistory.CreatedTs,
+	); err != nil {
+		return nil, err
+	}
+
+	return &migrationHistory, nil
+}

store/db/postgres/postgres.go

@@ -0,0 +1,57 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"log"
+
+	// Import the PostgreSQL driver.
+	_ "github.com/lib/pq"
+	"github.com/pkg/errors"
+
+	"github.com/usememos/memos/internal/profile"
+	"github.com/usememos/memos/store"
+)
+
+type DB struct {
+	db      *sql.DB
+	profile *profile.Profile
+}
+
+func NewDB(profile *profile.Profile) (store.Driver, error) {
+	if profile == nil {
+		return nil, errors.New("profile is nil")
+	}
+
+	// Open the PostgreSQL connection
+	db, err := sql.Open("postgres", profile.DSN)
+	if err != nil {
+		log.Printf("Failed to open database: %s", err)
+		return nil, errors.Wrapf(err, "failed to open database: %s", profile.DSN)
+	}
+
+	var driver store.Driver = &DB{
+		db:      db,
+		profile: profile,
+	}
+
+	// Return the DB struct
+	return driver, nil
+}
+
+func (d *DB) GetDB() *sql.DB {
+	return d.db
+}
+
+func (d *DB) Close() error {
+	return d.db.Close()
+}
+
+func (d *DB) IsInitialized(ctx context.Context) (bool, error) {
+	var exists bool
+	err := d.db.QueryRowContext(ctx, "SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'memo' AND table_type = 'BASE TABLE')").Scan(&exists)
+	if err != nil {
+		return false, errors.Wrap(err, "failed to check if database is initialized")
+	}
+	return exists, nil
+}

store/db/postgres/reaction.go

@@ -0,0 +1,79 @@
+package postgres
+
+import (
+	"context"
+	"strings"
+
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) UpsertReaction(ctx context.Context, upsert *store.Reaction) (*store.Reaction, error) {
+	fields := []string{"creator_id", "content_id", "reaction_type"}
+	args := []interface{}{upsert.CreatorID, upsert.ContentID, upsert.ReactionType}
+	stmt := "INSERT INTO reaction (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id, created_ts"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
+		&upsert.ID,
+		&upsert.CreatedTs,
+	); err != nil {
+		return nil, err
+	}
+
+	reaction := upsert
+	return reaction, nil
+}
+
+func (d *DB) ListReactions(ctx context.Context, find *store.FindReaction) ([]*store.Reaction, error) {
+	where, args := []string{"1 = 1"}, []interface{}{}
+	if find.ID != nil {
+		where, args = append(where, "id = "+placeholder(len(args)+1)), append(args, *find.ID)
+	}
+	if find.CreatorID != nil {
+		where, args = append(where, "creator_id = "+placeholder(len(args)+1)), append(args, *find.CreatorID)
+	}
+	if find.ContentID != nil {
+		where, args = append(where, "content_id = "+placeholder(len(args)+1)), append(args, *find.ContentID)
+	}
+
+	rows, err := d.db.QueryContext(ctx, `
+		SELECT
+			id,
+			created_ts,
+			creator_id,
+			content_id,
+			reaction_type
+		FROM reaction
+		WHERE `+strings.Join(where, " AND ")+`
+		ORDER BY id ASC`,
+		args...,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := []*store.Reaction{}
+	for rows.Next() {
+		reaction := &store.Reaction{}
+		if err := rows.Scan(
+			&reaction.ID,
+			&reaction.CreatedTs,
+			&reaction.CreatorID,
+			&reaction.ContentID,
+			&reaction.ReactionType,
+		); err != nil {
+			return nil, err
+		}
+		list = append(list, reaction)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) DeleteReaction(ctx context.Context, delete *store.DeleteReaction) error {
+	_, err := d.db.ExecContext(ctx, "DELETE FROM reaction WHERE id = $1", delete.ID)
+	return err
+}

store/db/postgres/user.go

@@ -0,0 +1,166 @@
+package postgres
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) CreateUser(ctx context.Context, create *store.User) (*store.User, error) {
+	fields := []string{"username", "role", "email", "nickname", "password_hash", "avatar_url"}
+	args := []any{create.Username, create.Role, create.Email, create.Nickname, create.PasswordHash, create.AvatarURL}
+	stmt := "INSERT INTO \"user\" (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id, description, created_ts, updated_ts, row_status"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
+		&create.ID,
+		&create.Description,
+		&create.CreatedTs,
+		&create.UpdatedTs,
+		&create.RowStatus,
+	); err != nil {
+		return nil, err
+	}
+
+	return create, nil
+}
+
+func (d *DB) UpdateUser(ctx context.Context, update *store.UpdateUser) (*store.User, error) {
+	set, args := []string{}, []any{}
+	if v := update.UpdatedTs; v != nil {
+		set, args = append(set, "updated_ts = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.RowStatus; v != nil {
+		set, args = append(set, "row_status = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Username; v != nil {
+		set, args = append(set, "username = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Email; v != nil {
+		set, args = append(set, "email = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Nickname; v != nil {
+		set, args = append(set, "nickname = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.AvatarURL; v != nil {
+		set, args = append(set, "avatar_url = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.PasswordHash; v != nil {
+		set, args = append(set, "password_hash = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Description; v != nil {
+		set, args = append(set, "description = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := update.Role; v != nil {
+		set, args = append(set, "role = "+placeholder(len(args)+1)), append(args, *v)
+	}
+
+	query := `
+		UPDATE "user"
+		SET ` + strings.Join(set, ", ") + `
+		WHERE id = ` + placeholder(len(args)+1) + `
+		RETURNING id, username, role, email, nickname, password_hash, avatar_url, description, created_ts, updated_ts, row_status
+	`
+	args = append(args, update.ID)
+	user := &store.User{}
+	if err := d.db.QueryRowContext(ctx, query, args...).Scan(
+		&user.ID,
+		&user.Username,
+		&user.Role,
+		&user.Email,
+		&user.Nickname,
+		&user.PasswordHash,
+		&user.AvatarURL,
+		&user.Description,
+		&user.CreatedTs,
+		&user.UpdatedTs,
+		&user.RowStatus,
+	); err != nil {
+		return nil, err
+	}
+
+	return user, nil
+}
+
+func (d *DB) ListUsers(ctx context.Context, find *store.FindUser) ([]*store.User, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if v := find.ID; v != nil {
+		where, args = append(where, "id = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.Username; v != nil {
+		where, args = append(where, "username = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.Role; v != nil {
+		where, args = append(where, "role = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.Email; v != nil {
+		where, args = append(where, "email = "+placeholder(len(args)+1)), append(args, *v)
+	}
+	if v := find.Nickname; v != nil {
+		where, args = append(where, "nickname = "+placeholder(len(args)+1)), append(args, *v)
+	}
+
+	orderBy := []string{"created_ts DESC", "row_status DESC"}
+	query := `
+		SELECT 
+			id,
+			username,
+			role,
+			email,
+			nickname,
+			password_hash,
+			avatar_url,
+			description,
+			created_ts,
+			updated_ts,
+			row_status
+		FROM "user"
+		WHERE ` + strings.Join(where, " AND ") + ` ORDER BY ` + strings.Join(orderBy, ", ")
+	if v := find.Limit; v != nil {
+		query += fmt.Sprintf(" LIMIT %d", *v)
+	}
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := make([]*store.User, 0)
+	for rows.Next() {
+		var user store.User
+		if err := rows.Scan(
+			&user.ID,
+			&user.Username,
+			&user.Role,
+			&user.Email,
+			&user.Nickname,
+			&user.PasswordHash,
+			&user.AvatarURL,
+			&user.Description,
+			&user.CreatedTs,
+			&user.UpdatedTs,
+			&user.RowStatus,
+		); err != nil {
+			return nil, err
+		}
+		list = append(list, &user)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) DeleteUser(ctx context.Context, delete *store.DeleteUser) error {
+	result, err := d.db.ExecContext(ctx, `DELETE FROM "user" WHERE id = $1`, delete.ID)
+	if err != nil {
+		return err
+	}
+	if _, err := result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}

store/db/postgres/user_setting.go

@@ -0,0 +1,69 @@
+package postgres
+
+import (
+	"context"
+	"strings"
+
+	storepb "github.com/usememos/memos/proto/gen/store"
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) UpsertUserSetting(ctx context.Context, upsert *store.UserSetting) (*store.UserSetting, error) {
+	stmt := `
+		INSERT INTO user_setting (
+			user_id, key, value
+		)
+		VALUES ($1, $2, $3)
+		ON CONFLICT(user_id, key) DO UPDATE 
+		SET value = EXCLUDED.value
+	`
+	if _, err := d.db.ExecContext(ctx, stmt, upsert.UserID, upsert.Key.String(), upsert.Value); err != nil {
+		return nil, err
+	}
+	return upsert, nil
+}
+
+func (d *DB) ListUserSettings(ctx context.Context, find *store.FindUserSetting) ([]*store.UserSetting, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if v := find.Key; v != storepb.UserSetting_KEY_UNSPECIFIED {
+		where, args = append(where, "key = "+placeholder(len(args)+1)), append(args, v.String())
+	}
+	if v := find.UserID; v != nil {
+		where, args = append(where, "user_id = "+placeholder(len(args)+1)), append(args, *find.UserID)
+	}
+
+	query := `
+		SELECT
+			user_id,
+		  key,
+			value
+		FROM user_setting
+		WHERE ` + strings.Join(where, " AND ")
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	userSettingList := make([]*store.UserSetting, 0)
+	for rows.Next() {
+		userSetting := &store.UserSetting{}
+		var keyString string
+		if err := rows.Scan(
+			&userSetting.UserID,
+			&keyString,
+			&userSetting.Value,
+		); err != nil {
+			return nil, err
+		}
+		userSetting.Key = storepb.UserSetting_Key(storepb.UserSetting_Key_value[keyString])
+		userSettingList = append(userSettingList, userSetting)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return userSettingList, nil
+}

store/db/postgres/workspace_setting.go

@@ -0,0 +1,72 @@
+package postgres
+
+import (
+	"context"
+	"strings"
+
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) UpsertWorkspaceSetting(ctx context.Context, upsert *store.WorkspaceSetting) (*store.WorkspaceSetting, error) {
+	stmt := `
+		INSERT INTO system_setting (
+			name, value, description
+		)
+		VALUES ($1, $2, $3)
+		ON CONFLICT(name) DO UPDATE 
+		SET
+			value = EXCLUDED.value,
+			description = EXCLUDED.description
+	`
+	if _, err := d.db.ExecContext(ctx, stmt, upsert.Name, upsert.Value, upsert.Description); err != nil {
+		return nil, err
+	}
+
+	return upsert, nil
+}
+
+func (d *DB) ListWorkspaceSettings(ctx context.Context, find *store.FindWorkspaceSetting) ([]*store.WorkspaceSetting, error) {
+	where, args := []string{"1 = 1"}, []any{}
+	if find.Name != "" {
+		where, args = append(where, "name = "+placeholder(len(args)+1)), append(args, find.Name)
+	}
+
+	query := `
+		SELECT
+			name,
+			value,
+			description
+		FROM system_setting
+		WHERE ` + strings.Join(where, " AND ")
+
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := []*store.WorkspaceSetting{}
+	for rows.Next() {
+		systemSettingMessage := &store.WorkspaceSetting{}
+		if err := rows.Scan(
+			&systemSettingMessage.Name,
+			&systemSettingMessage.Value,
+			&systemSettingMessage.Description,
+		); err != nil {
+			return nil, err
+		}
+		list = append(list, systemSettingMessage)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) DeleteWorkspaceSetting(ctx context.Context, delete *store.DeleteWorkspaceSetting) error {
+	stmt := `DELETE FROM system_setting WHERE name = $1`
+	_, err := d.db.ExecContext(ctx, stmt, delete.Name)
+	return err
+}