init commit

store/migration/sqlite/0.3/00__memo_visibility_protected.sql

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+-- change memo visibility field from "PRIVATE"/"PUBLIC" to "PRIVATE"/"PROTECTED"/"PUBLIC".
+PRAGMA foreign_keys = off;
+
+DROP TABLE IF EXISTS _memo_old;
+
+ALTER TABLE
+  memo RENAME TO _memo_old;
+
+CREATE TABLE memo (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  creator_id INTEGER NOT NULL,
+  created_ts BIGINT NOT NULL DEFAULT (strftime('%s', 'now')),
+  updated_ts BIGINT NOT NULL DEFAULT (strftime('%s', 'now')),
+  row_status TEXT NOT NULL CHECK (row_status IN ('NORMAL', 'ARCHIVED')) DEFAULT 'NORMAL',
+  content TEXT NOT NULL DEFAULT '',
+  visibility TEXT NOT NULL CHECK (visibility IN ('PUBLIC', 'PROTECTED', 'PRIVATE')) DEFAULT 'PRIVATE',
+  FOREIGN KEY(creator_id) REFERENCES user(id) ON DELETE CASCADE
+);
+
+INSERT INTO
+  memo (
+    id,
+    creator_id,
+    created_ts,
+    updated_ts,
+    row_status,
+    content,
+    visibility
+  )
+SELECT
+  id,
+  creator_id,
+  created_ts,
+  updated_ts,
+  row_status,
+  content,
+  visibility
+FROM
+  _memo_old;
+
+DROP TABLE IF EXISTS _memo_old;
+
+PRAGMA foreign_keys = on;