sql-ddl-to-json-schema
Version:
Parse and convert SQL DDL statements to a JSON Schema.
50 lines (49 loc) • 1.42 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DropIndex = void 0;
/**
* Formatter for P_DROP_INDEX rule's parsed JSON.
*/
class DropIndex {
database;
/**
* Get table with given name.
*
* @param name Table name.
*/
getTable(name) {
return this.database.getTable(name);
}
/**
* Setter for database.
*
* @param database Database instance.
*/
setDatabase(database) {
this.database = database;
}
/**
* Drops one of the indexes in a table.
*
* @param json JSON format parsed from SQL.
*/
handleDef(json) {
if (json.id === 'P_DROP_INDEX') {
const table = this.getTable(json.def.table);
if (!table) {
// throw new Error(`Found "DROP INDEX" statement for an unexisting table ${json.def.table}`);
return;
}
const index = table.getIndexByName(json.def.index);
if (!index) {
// throw new Error(`Found "DROP INDEX" statement for an
// unexisting index ${json.def.index} in table ${json.def.table}`);
return;
}
table.dropIndexByInstance(index);
return;
}
throw new TypeError(`Expected P_DROP_INDEX rule to be handled but received ${json.id}`);
}
}
exports.DropIndex = DropIndex;