implement DraftStore

1 files changed, 39 insertions, 4 deletions

diff --git a/srv/src/post/sql.go b/srv/src/post/sql.go
index 16cdc95..c768c9a 100644
--- a/srv/src/post/sql.go
+++ b/srv/src/post/sql.go
@@ -38,10 +38,18 @@ var migrations = &migrate.MemoryMigrationSource{Migrations: []*migrate.Migration
 				body BLOB NOT NULL
 			)`,
 		},
-		Down: []string{
-			"DROP TABLE assets",
-			"DROP TABLE post_tags",
-			"DROP TABLE posts",
+	},
+	{
+		Id: "2",
+		Up: []string{
+			`CREATE TABLE post_drafts (
+				id          TEXT NOT NULL PRIMARY KEY,
+				title       TEXT NOT NULL,
+				description TEXT NOT NULL,
+				tags        TEXT,
+				series      TEXT,
+				body        TEXT NOT NULL
+			)`,
 		},
 	},
 }}
@@ -89,3 +97,30 @@ func NewInMemSQLDB() *SQLDB {
 func (db *SQLDB) Close() error {
 	return db.db.Close()
 }
+
+func (db *SQLDB) withTx(cb func(*sql.Tx) error) error {
+
+	tx, err := db.db.Begin()
+
+	if err != nil {
+		return fmt.Errorf("starting transaction: %w", err)
+	}
+
+	if err := cb(tx); err != nil {
+
+		if rollbackErr := tx.Rollback(); rollbackErr != nil {
+			return fmt.Errorf(
+				"rolling back transaction: %w (original error: %v)",
+				rollbackErr, err,
+			)
+		}
+
+		return fmt.Errorf("performing transaction: %w (rolled back)", err)
+	}
+
+	if err := tx.Commit(); err != nil {
+		return fmt.Errorf("committing transaction: %w", err)
+	}
+
+	return nil
+}