Alex/latest sequelize core composite key support

packages/core/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "sequelize-core-papandreou",
+  "name": "@sequelize/core",
   "description": "Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift, Snowflake’s Data Cloud, Db2, and IBM i. It features solid transaction support, relations, eager and lazy loading, read replication and more.",
   "version": "7.0.0-alpha.41-patch9",
   "funding": [

packages/core/src/associations/base.ts

@@ -291,6 +291,12 @@ export interface ForeignKeyOptions<ForeignKey extends string>
 export type NormalizedAssociationOptions<ForeignKey extends string> =
   NormalizeBaseAssociationOptions<AssociationOptions<ForeignKey>>;
 
+/** Foreign Key Options */
+export interface CompositeForeignKeysOptions {
+  source: string;
+  target: string;
+}
+
 /**
  * Options provided when associating models
  */
@@ -313,6 +319,8 @@ export interface AssociationOptions<ForeignKey extends string = string> extends
    */
   foreignKey?: ForeignKey | ForeignKeyOptions<ForeignKey>;
 
+  foreignKeys?: ForeignKey[] | Array<{ source: string; target: string }>;
+
   /**
    * Should ON UPDATE, ON DELETE, and REFERENCES constraints be enabled on the foreign key.
    */

packages/core/src/associations/belongs-to-many.ts

@@ -169,7 +169,7 @@ export class BelongsToManyAssociation<
    * The name of the Column that the {@link foreignKey} fk (located on the Through Table) will reference on the Source model.
    */
   get sourceKeyField(): string {
-    return this.fromThroughToSource.targetKeyField;
+    return this.fromThroughToSource.targetKeyField(this.fromThroughToSource.targetKey);
   }
 
   /**