initial public commit

daos/table.go

@@ -0,0 +1,37 @@
+package daos
+
+import (
+	"github.com/pocketbase/dbx"
+)
+
+// HasTable checks if a table with the provided name exists (case insensitive).
+func (dao *Dao) HasTable(tableName string) bool {
+	var exists bool
+
+	err := dao.DB().Select("count(*)").
+		From("sqlite_schema").
+		AndWhere(dbx.HashExp{"type": "table"}).
+		AndWhere(dbx.NewExp("LOWER([[name]])=LOWER({:tableName})", dbx.Params{"tableName": tableName})).
+		Limit(1).
+		Row(&exists)
+
+	return err == nil && exists
+}
+
+// GetTableColumns returns all column names of a single table by its name.
+func (dao *Dao) GetTableColumns(tableName string) ([]string, error) {
+	columns := []string{}
+
+	err := dao.DB().NewQuery("SELECT name FROM PRAGMA_TABLE_INFO({:tableName})").
+		Bind(dbx.Params{"tableName": tableName}).
+		Column(&columns)
+
+	return columns, err
+}
+
+// DeleteTable drops the specified table.
+func (dao *Dao) DeleteTable(tableName string) error {
+	_, err := dao.DB().DropTable(tableName).Execute()
+
+	return err
+}