Added delete category query.

pkg/mindflow/database/sqlite/db.go

@@ -20,6 +20,8 @@ var (
 	queryCategoryGetAll string
 	//go:embed queries/categoryNew.sql
 	queryCategoryNew string
+	//go:embed queries/categoryDelete.sql
+	queryCategoryDelete string
 	//go:embed queries/postGetAll.sql
 	queryPostGetAll string
 	//go:embed queries/postNew.sql
@@ -34,6 +36,7 @@ var (
 	stmtCategoryById   *sql.Stmt
 	stmtCategoryGetAll *sql.Stmt
 	stmtCategoryNew    *sql.Stmt
+	stmtCategoryDelete *sql.Stmt
 	stmtPostGetAll     *sql.Stmt
 	stmtPostNew        *sql.Stmt
 	stmtPostEdit       *sql.Stmt
@@ -63,6 +66,11 @@ func initDBStatements(db *sql.DB) error {
 		return errors.Wrap(err, "failed to prepare queryCategoryNew")
 	}
 
+	stmtCategoryDelete, err = db.Prepare(queryCategoryDelete)
+	if err != nil {
+		return errors.Wrap(err, "failed to prepare queryCategoryDelete")
+	}
+
 	stmtPostGetAll, err = db.Prepare(queryPostGetAll)
 	if err != nil {
 		return errors.Wrap(err, "failed to prepare queryPostGetAll")
@@ -264,9 +272,26 @@ func (s *SQLiteMindflow) GetCategoryByID(id int64) (name string, err error) {
 	return
 }
 
+func (s *SQLiteMindflow) DeleteCategory(id int64) (err error) {
+	tx, err := s.db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	if _, err = tx.Stmt(stmtCategoryDelete).Exec(id); err != nil {
+		return err
+	}
+
+	tx.Commit()
+
+	return nil
+}
+
 func (s *SQLiteMindflow) Close() error {
 	stmtCategoryById.Close()
 	stmtCategoryNew.Close()
+	stmtCategoryDelete.Close()
 	stmtPostDelete.Close()
 	stmtPostEdit.Close()
 	stmtPostGetAll.Close()

pkg/mindflow/database/sqlite/queries/categoryDelete.sql

@@ -0,0 +1,2 @@
+DELETE FROM `category`
+ WHERE `category_id` = ?;