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InferCallbackType Type — drizzle-orm Architecture

Architecture documentation for the InferCallbackType type/interface in index.ts from the drizzle-orm codebase.

Type typescript

Entity Profile

Dependency Diagram

graph TD
  47daaf9a_d04e_d3d3_3673_5e9d32628316["InferCallbackType"]
  0fabdd81_61c9_bb7c_7ddf_dde7a6071abc["index.ts"]
  47daaf9a_d04e_d3d3_3673_5e9d32628316 -->|defined in| 0fabdd81_61c9_bb7c_7ddf_dde7a6071abc
  style 47daaf9a_d04e_d3d3_3673_5e9d32628316 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-seed/src/index.ts lines 28–135

type InferCallbackType<
	DB extends
		| PgDatabase<any, any>
		| MySqlDatabase<any, any>
		| BaseSQLiteDatabase<any, any>,
	SCHEMA extends {
		[key: string]: PgTable | PgSchema | MySqlTable | MySqlSchema | SQLiteTable | Relations;
	},
> = DB extends PgDatabase<any, any> ? SCHEMA extends {
		[key: string]:
			| PgTable
			| PgSchema
			| MySqlTable
			| MySqlSchema
			| SQLiteTable
			| Relations;
	} ? {
			// iterates through schema fields. example -> schema: {"tableName": PgTable}
			[
				table in keyof SCHEMA as SCHEMA[table] extends PgTable ? table
					: never
			]?: {
				count?: number;
				columns?: {
					// iterates through table fields. example -> table: {"columnName": PgColumn}
					[
						column in keyof SCHEMA[table] as SCHEMA[table][column] extends PgColumn ? column
							: never
					]?: AbstractGenerator<any>;
				};
				with?: {
					[
						refTable in keyof SCHEMA as SCHEMA[refTable] extends PgTable ? refTable
							: never
					]?:
						| number
						| { weight: number; count: number | number[] }[];
				};
			};
		}
	: {}
	: DB extends MySqlDatabase<any, any> ? SCHEMA extends {
			[key: string]:
				| PgTable
				| PgSchema
				| MySqlTable
				| MySqlSchema
				| SQLiteTable
				| Relations;
		} ? {
				// iterates through schema fields. example -> schema: {"tableName": MySqlTable}
				[
					table in keyof SCHEMA as SCHEMA[table] extends MySqlTable ? table
						: never
				]?: {
					count?: number;
					columns?: {
						// iterates through table fields. example -> table: {"columnName": MySqlColumn}
						[
							column in keyof SCHEMA[table] as SCHEMA[table][column] extends MySqlColumn ? column
								: never
						]?: AbstractGenerator<any>;
					};
					with?: {
						[
							refTable in keyof SCHEMA as SCHEMA[refTable] extends MySqlTable ? refTable
								: never
						]?:
							| number
							| { weight: number; count: number | number[] }[];
					};
				};
			}
		: {}
	: DB extends BaseSQLiteDatabase<any, any> ? SCHEMA extends {
			[key: string]:
				| PgTable
				| PgSchema
				| MySqlTable
				| MySqlSchema
				| SQLiteTable

Defined In

Source

Frequently Asked Questions

What is the InferCallbackType type?
InferCallbackType is a type/interface in the drizzle-orm codebase, defined in drizzle-seed/src/index.ts.
Where is InferCallbackType defined?
InferCallbackType is defined in drizzle-seed/src/index.ts at line 28.

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