Adds db connection script and schema

flaskr/db.py

@@ -0,0 +1,38 @@
+import sqlite3
+
+import click
+from flask import current_app, g
+from flask.cli import with_appcontext
+
+def get_db():
+    if 'db' not in g:
+        g.db = sqlite3.connect(
+                current_app.config['DATABASE'],
+                detect_types=sqlite3.PARSE_DECLTYPES
+        )
+        g.db.row_factory = sqlite3.Row
+
+    return g.db
+
+def close_db(e=None):
+    db = g.pop('db', None)
+
+    if db is not None:
+        db.close()
+
+def init_db():
+    db = get_db()
+
+    with current_app.open_resource('schema.sql') as f:
+        db.executescript(f.read().decode('utf8'))
+
+@click.command('init-db')
+@with_appcontext
+def init_db_command():
+    init_db()
+    click.echo('Initialized the database.')
+
+def init_app(app):
+    app.teardown_appcontext(close_db)
+    app.cli.add_command(init_db_command)
+

flaskr/schema.sql

@@ -0,0 +1,18 @@
+DROP TABLE IF EXISTS user;
+DROP TABLE IF EXISTS post;
+
+CREATE TABLE user (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    username TEXT UNIQUE NOT NULL,
+    password TEXT NOT NULL
+);
+
+CREATE TABLE post (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    author_id INTEGER NOT NULL,
+    created TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    title TEXT NOT NULL,
+    body TEXT NOT NULL,
+    FOREIGN KEY (author_id) REFERENCES user (id)
+);
+