Initial Global Release v1.0 (Localization & Security Hardening)

app/database.py

@@ -0,0 +1,83 @@
+import os
+import sqlite3
+
+# Data directory relative to this file
+DB_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', 'data'))
+os.makedirs(DB_DIR, exist_ok=True)
+DB_PATH = os.path.join(DB_DIR, 'memos.db')
+
+def init_db():
+    conn = sqlite3.connect(DB_PATH)
+    c = conn.cursor()
+    
+    # 1. Memos Table
+    c.execute('''
+        CREATE TABLE IF NOT EXISTS memos (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            title TEXT,
+            content TEXT,
+            summary TEXT,
+            color TEXT DEFAULT '#2c3e50',
+            is_pinned BOOLEAN DEFAULT 0,
+            status TEXT DEFAULT 'active', -- 'active', 'done', 'archived'
+            group_name TEXT DEFAULT 'default',
+            is_encrypted BOOLEAN DEFAULT 0,
+            created_at TIMESTAMP,
+            updated_at TIMESTAMP
+        )
+    ''')
+    
+    try:
+        c.execute("ALTER TABLE memos ADD COLUMN status TEXT DEFAULT 'active'")
+    except sqlite3.OperationalError:
+        pass
+    
+    try:
+        c.execute("ALTER TABLE memos ADD COLUMN is_encrypted BOOLEAN DEFAULT 0")
+    except sqlite3.OperationalError:
+        pass
+
+    
+    # 2. Separate Tags Table (Normalized)
+    c.execute('''
+        CREATE TABLE IF NOT EXISTS tags (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            memo_id INTEGER,
+            name TEXT,
+            source TEXT, -- 'user' or 'ai'
+            FOREIGN KEY (memo_id) REFERENCES memos (id) ON DELETE CASCADE
+        )
+    ''')
+
+    # 3. Attachments Table (Enhanced Asset Tracking)
+    c.execute('''
+        CREATE TABLE IF NOT EXISTS attachments (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            memo_id INTEGER,
+            filename TEXT,
+            original_name TEXT,
+            file_type TEXT,
+            size INTEGER,
+            created_at TIMESTAMP,
+            FOREIGN KEY (memo_id) REFERENCES memos (id) ON DELETE SET NULL
+        )
+    ''')
+    
+    # 4. Memo Links Table (Backlinks)
+    c.execute('''
+        CREATE TABLE IF NOT EXISTS memo_links (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            source_id INTEGER,
+            target_id INTEGER,
+            FOREIGN KEY (source_id) REFERENCES memos (id) ON DELETE CASCADE,
+            FOREIGN KEY (target_id) REFERENCES memos (id) ON DELETE CASCADE
+        )
+    ''')
+    
+    conn.commit()
+    conn.close()
+
+def get_db():
+    conn = sqlite3.connect(DB_PATH)
+    conn.row_factory = sqlite3.Row
+    return conn