39 lines
3.0 KiB
TypeScript
39 lines
3.0 KiB
TypeScript
import { Context } from '../types/Context';
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import { DeduceCreateMultipleOperation, DeduceCreateOperation, DeduceCreateSingleOperation, DeduceRemoveOperation, DeduceUpdateOperation, EntityDict, OperateParams, OperationResult, SelectRowShape } from "../types/Entity";
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import { RowStore } from '../types/RowStore';
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import { StorageSchema } from '../types/Storage';
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/**这个用来处理级联的select和update，对不同能力的 */
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export declare abstract class CascadeStore<ED extends EntityDict, Cxt extends Context<ED>> extends RowStore<ED, Cxt> {
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constructor(storageSchema: StorageSchema<ED>);
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protected abstract supportManyToOneJoin(): boolean;
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protected abstract supportMultipleCreate(): boolean;
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protected abstract selectAbjointRow<T extends keyof ED, S extends ED[T]['Selection']>(entity: T, selection: S, context: Cxt, params?: OperateParams): Promise<SelectRowShape<ED[T]['Schema'], S['data']>[]>;
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protected abstract updateAbjointRow<T extends keyof ED>(entity: T, operation: DeduceCreateMultipleOperation<ED[T]['Schema']> | DeduceCreateSingleOperation<ED[T]['Schema']> | DeduceUpdateOperation<ED[T]['Schema']> | DeduceRemoveOperation<ED[T]['Schema']>, context: Cxt, params?: OperateParams): Promise<number>;
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protected cascadeSelect<T extends keyof ED, S extends ED[T]['Selection']>(entity: T, selection: S, context: Cxt, params?: OperateParams): Promise<SelectRowShape<ED[T]['Schema'], S['data']>[]>;
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/**
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* 级联更新
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* A --> B
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多对一：A CREATE／B CREATE，B data的主键赋到A的data上
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A CREATE／B UPDATE，B filter的主键来自A的data
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A UPDATE／B CREATE，B data的主键赋到A的data上
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A UPDATE／B UPDATE，B filter的主键来自A的row
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A UPDATE／B REMOVE，B filter的主键来自A的row
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A REMOVE／B UPDATE，B filter的主键来自A的row
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A REMOVE／B REMOVE，B filter的主键来自A的row
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一对多：A CREATE／B CREATE，A data上的主键赋到B的data上
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A CREATE／B UPDATE，A data上的主键赋到B的data上
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A UPDATE／B CREATE，A filter上的主键赋到B的data上（一定是带主键的filter）
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A UPDATE／B UPDATE，A filter上的主键赋到B的filter上（一定是带主键的filter）
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A UPDATE／B REMOVE，A filter上的主键赋到B的filter上（一定是带主键的filter）
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A REMOVE／B UPDATE，A filter上的主键赋到B的filter上（且B关于A的外键清空）
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A REMOVE／B REMOVE，A filter上的主键赋到B的filter上
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* @param entity
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* @param operation
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* @param context
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* @param params
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*/
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protected cascadeUpdate<T extends keyof ED>(entity: T, operation: DeduceCreateOperation<ED[T]['Schema']> | DeduceUpdateOperation<ED[T]['Schema']> | DeduceRemoveOperation<ED[T]['Schema']>, context: Cxt, params?: OperateParams): Promise<OperationResult<ED>>;
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judgeRelation(entity: keyof ED, attr: string): string | string[] | 1 | 0 | 2;
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}
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