Documentation / @tenancy-node/db / MssqlDdlPlugin

Class: MssqlDdlPlugin

Defined in: db/src/dialect.ts:84

Adapta el DDL de las migraciones centrales a SQL Server.

Implements

• KyselyPlugin

Constructors

Constructor

new MssqlDdlPlugin(): MssqlDdlPlugin

Returns

MssqlDdlPlugin

Methods

transformQuery()

transformQuery(args): RootOperationNode

Defined in: db/src/dialect.ts:86

This is called for each query before it is executed. You can modify the query by transforming its OperationNode tree provided in args.node and returning the transformed tree. You'd usually want to use an OperationNodeTransformer for this.

If you need to pass some query-related data between this method and transformResult you can use a WeakMap with args.queryId as the key:

import type {
  KyselyPlugin,
  QueryResult,
  RootOperationNode,
  UnknownRow
} from 'kysely'

interface MyData {
  // ...
}
const data = new WeakMap<any, MyData>()

const plugin = {
  transformQuery(args: PluginTransformQueryArgs): RootOperationNode {
    const something: MyData = {}

    // ...

    data.set(args.queryId, something)

    // ...

    return args.node
  },

  async transformResult(args: PluginTransformResultArgs): Promise<QueryResult<UnknownRow>> {
    // ...

    const something = data.get(args.queryId)

    // ...

    return args.result
  }
} satisfies KyselyPlugin

You should use a WeakMap instead of a Map or some other strong references because transformQuery is not always matched by a call to transformResult which would leave orphaned items in the map and cause a memory leak.

Parameters

args

PluginTransformQueryArgs

Returns

RootOperationNode

Implementation of

KyselyPlugin.transformQuery

---

transformResult()

transformResult(args): Promise<QueryResult<UnknownRow>>

Defined in: db/src/dialect.ts:89

This method is called for each query after it has been executed. The result of the query can be accessed through args.result. You can modify the result and return the modifier result.

Parameters

args

PluginTransformResultArgs

Returns

Promise<QueryResult<UnknownRow>>

Implementation of

KyselyPlugin.transformResult