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refactor: abstract queryclient to it's own class from connection
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /* | ||
| * @adonisjs/lucid | ||
| * | ||
| * (c) Harminder Virk <virk@adonisjs.com> | ||
| * | ||
| * For the full copyright and license information, please view the LICENSE | ||
| * file that was distributed with this source code. | ||
| */ | ||
|
|
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| /// <reference path="../../adonis-typings/database.ts" /> | ||
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| import * as knex from 'knex' | ||
| import { | ||
| RawContract, | ||
| QueryClientContract, | ||
| TransactionClientContract, | ||
| InsertQueryBuilderContract, | ||
| DatabaseQueryBuilderContract, | ||
| } from '@ioc:Adonis/Addons/DatabaseQueryBuilder' | ||
| import { resolveClientNameWithAliases } from 'knex/lib/helpers' | ||
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| import { TransactionClient } from '../TransactionClient' | ||
| import { RawQueryBuilder } from '../QueryBuilder/Raw' | ||
| import { InsertQueryBuilder } from '../QueryBuilder/Insert' | ||
| import { DatabaseQueryBuilder } from '../QueryBuilder/Database' | ||
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| /** | ||
| * Query client exposes the API to fetch instance of different query builders | ||
| * to perform queries on a selection connection. | ||
| */ | ||
| export class QueryClient implements QueryClientContract { | ||
| /** | ||
| * Not a transaction client | ||
| */ | ||
| public isTransaction = false | ||
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| /** | ||
| * The name of the dialect in use | ||
| */ | ||
| public dialect = resolveClientNameWithAliases(this._client.client.config) | ||
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| constructor (private _client: knex, private _readClient?: knex) { | ||
| } | ||
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| /** | ||
| * Returns the read client. The readClient is optional, since we can get | ||
| * an instance of [[QueryClient]] with a sticky write client. | ||
| */ | ||
| public getReadClient () { | ||
| return this._readClient || this._client | ||
| } | ||
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| /** | ||
| * Returns the write client | ||
| */ | ||
| public getWriteClient () { | ||
| return this._client | ||
| } | ||
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| /** | ||
| * Truncate table | ||
| */ | ||
| public async truncate (table: string): Promise<void> { | ||
| await this._client.select(table).truncate() | ||
| } | ||
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| /** | ||
| * Get information for a table columns | ||
| */ | ||
| public async columnsInfo (table: string, column?: string): Promise<any> { | ||
| const query = this._client.select(table) | ||
| const result = await (column ? query.columnInfo(column) : query.columnInfo()) | ||
| return result | ||
| } | ||
|
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| /** | ||
| * Returns an instance of a transaction. Each transaction will | ||
| * query and hold a single connection for all queries. | ||
| */ | ||
| public async transaction (): Promise<TransactionClientContract> { | ||
| const trx = await this._client.transaction() | ||
| return new TransactionClient(trx, this.dialect) | ||
| } | ||
|
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| /** | ||
| * Returns instance of a query builder for selecting, updating | ||
| * or deleting rows | ||
| */ | ||
| public query (): DatabaseQueryBuilderContract { | ||
| return new DatabaseQueryBuilder(this._client.queryBuilder(), this) | ||
| } | ||
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| /** | ||
| * Returns instance of a query builder for inserting rows | ||
| */ | ||
| public insertQuery (): InsertQueryBuilderContract { | ||
| return new InsertQueryBuilder(this._client.queryBuilder(), this) | ||
| } | ||
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| /** | ||
| * Returns instance of raw query builder | ||
| */ | ||
| public raw (sql: any, bindings?: any): RawContract { | ||
| return new RawQueryBuilder(this._client.raw(sql, bindings)) | ||
| } | ||
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| /** | ||
| * Returns instance of a query builder and selects the table | ||
| */ | ||
| public from (table: any): DatabaseQueryBuilderContract { | ||
| return this.query().from(table) | ||
| } | ||
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| /** | ||
| * Returns instance of a query builder and selects the table | ||
| * for an insert query | ||
| */ | ||
| public table (table: any): InsertQueryBuilderContract { | ||
| return this.insertQuery().table(table) | ||
| } | ||
| } |
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