@sqb/builder
Version:
Extensible multi-dialect SQL query builder written with TypeScript
58 lines (57 loc) • 1.89 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DeleteQuery = void 0;
const enums_js_1 = require("../enums.js");
const op_and_js_1 = require("../sql-objects/operators/op-and.js");
const table_name_js_1 = require("../sql-objects/table-name.js");
const typeguards_js_1 = require("../typeguards.js");
const query_js_1 = require("./query.js");
class DeleteQuery extends query_js_1.Query {
_table;
_where;
constructor(tableName) {
super();
if (!tableName ||
!(typeof tableName === 'string' || (0, typeguards_js_1.isRawStatement)(tableName))) {
throw new TypeError('String or Raw instance required as first argument (tableName) for UpdateQuery');
}
this._table =
typeof tableName === 'string' ? new table_name_js_1.TableName(tableName) : tableName;
}
get _type() {
return enums_js_1.SerializationType.DELETE_QUERY;
}
/**
* Defines "where" part of query
*/
where(...operator) {
this._where = this._where || new op_and_js_1.OpAnd();
this._where.add(...operator);
return this;
}
/**
* Performs serialization
*/
_serialize(ctx) {
const o = {
table: this._table._serialize(ctx),
where: this._serializeWhere(ctx),
};
return ctx.serialize(this._type, o, () => this.__defaultSerialize(ctx, o));
}
__defaultSerialize(ctx, o) {
return 'delete from ' + o.table + (o.where ? '\n' + o.where : '');
}
/**
*
*/
_serializeWhere(ctx) {
if (!this._where)
return '';
const s = this._where._serialize(ctx);
return ctx.serialize(enums_js_1.SerializationType.CONDITIONS_BLOCK, s, () =>
/* istanbul ignore next */
s ? 'where ' + s : '');
}
}
exports.DeleteQuery = DeleteQuery;