initial: blog-app snapshot

repositories/issue_repo.py

@@ -0,0 +1,46 @@
+"""Issue queries. No Flask imports; take an explicit sqlite3 connection.
+
+Queries filter on `issues.project_id`, which is backed by the
+`idx_issues_project_id` index (Stage 4.2; docs/analysis/optional-indexes.sql).
+"""
+
+ISSUE_COLUMNS = "id, project_id, title, state, created_at, html_url, user"
+
+
+def _rows(cur):
+    return [dict(row) for row in cur.fetchall()]
+
+
+def list_recent_issues(db, limit=10):
+    return _rows(
+        db.execute(
+            f"SELECT {ISSUE_COLUMNS} FROM issues "
+            "ORDER BY created_at DESC LIMIT ?",
+            (limit,),
+        )
+    )
+
+
+def list_issues_for_project(db, project_id, limit=None):
+    sql = (
+        f"SELECT {ISSUE_COLUMNS} FROM issues "
+        "WHERE project_id = ? ORDER BY created_at DESC"
+    )
+    params = (project_id,)
+    if limit is not None:
+        sql += " LIMIT ?"
+        params = (project_id, limit)
+    return _rows(db.execute(sql, params))
+
+
+def search_issues(db, keyword, limit=None):
+    like = f"%{keyword}%"
+    sql = (
+        f"SELECT {ISSUE_COLUMNS} FROM issues "
+        "WHERE title LIKE ? ORDER BY created_at DESC"
+    )
+    params = (like,)
+    if limit is not None:
+        sql += " LIMIT ?"
+        params = (like, limit)
+    return _rows(db.execute(sql, params))