drizzle-orm
Version:
Drizzle ORM package for SQL databases
71 lines • 2.02 kB
JavaScript
import { entityKind, is } from "../../entity.js";
import { MySqlDialect } from "../dialect.js";
import { SelectionProxyHandler } from "../../selection-proxy.js";
import { WithSubquery } from "../../subquery.js";
import { MySqlSelectBuilder } from "./select.js";
class QueryBuilder {
static [entityKind] = "MySqlQueryBuilder";
dialect;
dialectConfig;
constructor(dialect) {
this.dialect = is(dialect, MySqlDialect) ? dialect : void 0;
this.dialectConfig = is(dialect, MySqlDialect) ? void 0 : dialect;
}
$with(alias) {
const queryBuilder = this;
return {
as(qb) {
if (typeof qb === "function") {
qb = qb(queryBuilder);
}
return new Proxy(
new WithSubquery(qb.getSQL(), qb.getSelectedFields(), alias, true),
new SelectionProxyHandler({ alias, sqlAliasedBehavior: "alias", sqlBehavior: "error" })
);
}
};
}
with(...queries) {
const self = this;
function select(fields) {
return new MySqlSelectBuilder({
fields: fields ?? void 0,
session: void 0,
dialect: self.getDialect(),
withList: queries
});
}
function selectDistinct(fields) {
return new MySqlSelectBuilder({
fields: fields ?? void 0,
session: void 0,
dialect: self.getDialect(),
withList: queries,
distinct: true
});
}
return { select, selectDistinct };
}
select(fields) {
return new MySqlSelectBuilder({ fields: fields ?? void 0, session: void 0, dialect: this.getDialect() });
}
selectDistinct(fields) {
return new MySqlSelectBuilder({
fields: fields ?? void 0,
session: void 0,
dialect: this.getDialect(),
distinct: true
});
}
// Lazy load dialect to avoid circular dependency
getDialect() {
if (!this.dialect) {
this.dialect = new MySqlDialect(this.dialectConfig);
}
return this.dialect;
}
}
export {
QueryBuilder
};
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