Configuration table and functions

scripts-available/CDB_Conf.sql

@@ -0,0 +1,33 @@
+DO LANGUAGE 'plpgsql' $$
+BEGIN
+    CREATE TABLE IF NOT EXISTS CDB_CONF ( PARAM TEXT PRIMARY KEY, VALUE TEXT NOT NULL );
+END
+$$;
+
+CREATE OR REPLACE
+FUNCTION cartodb.CDB_Conf_SetParam(param text, value text)
+    RETURNS void AS $$
+BEGIN
+    PERFORM cartodb.CDB_Conf_RemoveParam(param);
+    EXECUTE 'INSERT INTO CDB_CONF (PARAM, VALUE) VALUES ($1, $2);' USING param, value;
+END
+$$ LANGUAGE PLPGSQL VOLATILE;
+
+CREATE OR REPLACE
+FUNCTION cartodb.CDB_Conf_RemoveParam(param text)
+    RETURNS void AS $$
+BEGIN
+    EXECUTE 'DELETE FROM CDB_CONF WHERE PARAM = $1;' USING param;
+END
+$$ LANGUAGE PLPGSQL VOLATILE;
+
+CREATE OR REPLACE
+FUNCTION cartodb.CDB_Conf_GetParam(param text)
+    RETURNS TEXT AS $$
+DECLARE
+    value TEXT;
+BEGIN
+    EXECUTE 'SELECT VALUE FROM CDB_CONF WHERE PARAM = $1;' INTO value USING param;
+    RETURN value;
+END
+$$ LANGUAGE PLPGSQL STABLE;