import { Subject } from "../Subject";
|
import { ObjectLiteral } from "../../common/ObjectLiteral";
|
import { RelationMetadata } from "../../metadata/RelationMetadata";
|
/**
|
* Builds operations needs to be executed for many-to-many relations of the given subjects.
|
*
|
* by example: post contains owner many-to-many relation with categories in the property called "categories", e.g.
|
* @ManyToMany(type => Category, category => category.posts) categories: Category[]
|
* If user adds categories into the post and saves post we need to bind them.
|
* This operation requires updation of junction table.
|
*/
|
export declare class ManyToManySubjectBuilder {
|
protected subjects: Subject[];
|
constructor(subjects: Subject[]);
|
/**
|
* Builds operations for any changes in the many-to-many relations of the subjects.
|
*/
|
build(): void;
|
/**
|
* Builds operations for removal of all many-to-many records of all many-to-many relations of the given subject.
|
*/
|
buildForAllRemoval(subject: Subject): void;
|
/**
|
* Builds operations for a given subject and relation.
|
*
|
* by example: subject is "post" entity we are saving here and relation is "categories" inside it here.
|
*/
|
protected buildForSubjectRelation(subject: Subject, relation: RelationMetadata): void;
|
/**
|
* Creates identifiers for junction table.
|
* Example: { postId: 1, categoryId: 2 }
|
*/
|
protected buildJunctionIdentifier(subject: Subject, relation: RelationMetadata, relationId: ObjectLiteral): ObjectLiteral;
|
}
|