typeorm / typeorm / 22256862981

import { EntitySchema } from "../entity-schema/EntitySchema"

import { LoggerOptions } from "../logger/LoggerOptions"

import { NamingStrategyInterface } from "../naming-strategy/NamingStrategyInterface"

import { DatabaseType } from "../driver/types/DatabaseType"

import { Logger } from "../logger/Logger"

import { DataSource } from "../data-source/DataSource"

import { QueryResultCache } from "../cache/QueryResultCache"

import { MixedList } from "../common/MixedList"

/**

 * BaseDataSourceOptions is set of DataSourceOptions shared by all database types.

 */

export interface BaseDataSourceOptions {

    /**

     * Database type. This value is required.

     */

    readonly type: DatabaseType

    /**

     * Connection name. If connection name is not given then it will be called "default".

     * Different connections must have different names.

     * @deprecated

     */

    readonly name?: string

    /**

     * Entities to be loaded for this connection.

     * Accepts both entity classes and directories where from entities need to be loaded.

     * Directories support glob patterns.

     */

    readonly entities?: MixedList<Function | string | EntitySchema>

    /**

     * Subscribers to be loaded for this connection.

     * Accepts both subscriber classes and directories where from subscribers need to be loaded.

     * Directories support glob patterns.

     */

    readonly subscribers?: MixedList<Function | string>

    /**

     * Migrations to be loaded for this connection.

     * Accepts both migration classes and glob patterns representing migration files.

     */

    readonly migrations?: MixedList<Function | string>

    /**

     * Migrations table name, in case of different name from "migrations".

     * Accepts single string name.

     */

    readonly migrationsTableName?: string

    /**

     * Transaction mode for migrations to run in

     */

    readonly migrationsTransactionMode?: "all" | "none" | "each"

    /**

     * Typeorm metadata table name, in case of different name from "typeorm_metadata".

     * Accepts single string name.

     */

    readonly metadataTableName?: string

    /**

     * Naming strategy to be used to name tables and columns in the database.

     */

    readonly namingStrategy?: NamingStrategyInterface

    /**

     * Logging options.

     */

    readonly logging?: LoggerOptions

    /**

     * Logger instance used to log queries and events in the ORM.

     */

    readonly logger?:

        | "advanced-console"

        | "simple-console"

        | "formatted-console"

        | "file"

        | "debug"

        | Logger

    /**

     * Maximum number of milliseconds query should be executed before logger log a warning.

     */

    readonly maxQueryExecutionTime?: number

    /**

     * Maximum number of clients the pool should contain.

     */

    readonly poolSize?: number

    /**

     * Indicates if database schema should be auto created on every application launch.

     * Be careful with this option and don't use this in production - otherwise you can lose production data.

     * This option is useful during debug and development.

     * Alternative to it, you can use CLI and run schema:sync command.

     *

     * Note that for MongoDB database it does not create schema, because MongoDB is schemaless.

     * Instead, it syncs just by creating indices.

     */

    readonly synchronize?: boolean

    /**

     * Indicates if migrations should be auto run on every application launch.

     * Alternative to it, you can use CLI and run migrations:run command.

     */

    readonly migrationsRun?: boolean

    /**

     * Drops the schema each time connection is being established.

     * Be careful with this option and don't use this in production - otherwise you'll lose all production data.

     * This option is useful during debug and development.

     */

    readonly dropSchema?: boolean

    /**

     * Prefix to use on all tables (collections) of this connection in the database.

     */

    readonly entityPrefix?: string

    /**

     * When creating new Entity instances, skip all constructors when true.

     */

    readonly entitySkipConstructor?: boolean

    /**

     * Extra connection options to be passed to the underlying driver.

     *

     * todo: deprecate this and move all database-specific types into hts own connection options object.

     */

    readonly extra?: any

    /**

     * Specifies how relations must be loaded - using "joins" or separate queries.

     * If you are loading too much data with nested joins it's better to load relations

     * using separate queries.

     *

     * Default strategy is "join", but this default can be changed here.

     * Also, strategy can be set per-query in FindOptions and QueryBuilder.

     */

    readonly relationLoadStrategy?: "join" | "query"

    /**

     * Optionally applied "typename" to the model.

     * If set, then each hydrated model will have this property with the target model / entity name inside.

     *

     * (works like a discriminator property).

     */

    readonly typename?: string

    /**

     * Holds reference to the baseDirectory where configuration file are expected.

     * @internal

     */

    baseDirectory?: string

    /**

     * Allows to setup cache options.

     */

    readonly cache?:

        | boolean

        | {

              /**

               * Type of caching.

               *

               * - "database" means cached values will be stored in the separate table in database. This is default value.

               * - "redis" means cached values will be stored inside redis. You must provide redis connection options.

               */

              readonly type?:

                  | "database"

                  | "redis"

                  | "ioredis"

                  | "ioredis/cluster" // todo: add mongodb and other cache providers as well in the future

              /**

               * Factory function for custom cache providers that implement QueryResultCache.

               */

              readonly provider?: (dataSource: DataSource) => QueryResultCache

              /**

               * Configurable table name for "database" type cache.

               * Default value is "query-result-cache"

               */

              readonly tableName?: string

              /**

               * Used to provide redis connection options.

               */

              readonly options?: any

              /**

               * If set to true then queries (using find methods and QueryBuilder's methods) will always be cached.

               */

              readonly alwaysEnabled?: boolean

              /**

               * Time in milliseconds in which cache will expire.

               * This can be setup per-query.

               * Default value is 1000 which is equivalent to 1 second.

               */

              readonly duration?: number

              /**

               * Used to specify if cache errors should be ignored, and pass through the call to the Database.

               */

              readonly ignoreErrors?: boolean

          }

    /**

     * Allows automatic isolation of where clauses

     */

    readonly isolateWhereStatements?: boolean

    /**

     * Controls how null and undefined values are handled in find operations.

     */

    readonly invalidWhereValuesBehavior?: {

        /**

         * How to handle null values in where conditions.

         * - 'ignore': Skip null properties (default)

         * - 'sql-null': Transform null to SQL NULL

         * - 'throw': Throw an error when null is encountered

         */

        readonly null?: "ignore" | "sql-null" | "throw"

        /**

         * How to handle undefined values in where conditions.

         * - 'ignore': Skip undefined properties (default)

         * - 'throw': Throw an error when undefined is encountered

         */

        readonly undefined?: "ignore" | "throw"

    }

}