38 lines
2.7 KiB
TypeScript
38 lines
2.7 KiB
TypeScript
import { Context } from '../types/Context';
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import { DeduceCreateOperation, DeduceCreateSingleOperation, DeduceRemoveOperation, DeduceUpdateOperation, EntityDef, OperateParams, SelectionResult } 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 {
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[E: string]: EntityDef;
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}> extends RowStore<ED> {
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constructor(storageSchema: StorageSchema<ED>);
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protected abstract selectAbjointRow<T extends keyof ED>(entity: T, selection: Omit<ED[T]['Selection'], 'indexFrom' | 'count' | 'data' | 'sorter'>, context: Context<ED>, params?: Object): Promise<SelectionResult<ED, T>['result']>;
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protected abstract updateAbjointRow<T extends keyof ED>(entity: T, operation: DeduceCreateSingleOperation<ED[T]['Schema']> | DeduceUpdateOperation<ED[T]['Schema']> | DeduceRemoveOperation<ED[T]['Schema']>, context: Context<ED>, params?: OperateParams): Promise<void>;
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protected cascadeSelect<T extends keyof ED>(entity: T, selection: ED[T]['Selection'], context: Context<ED>, params?: Object): Promise<SelectionResult<ED, T>['result']>;
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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: Context<ED>, params?: OperateParams): Promise<void>;
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}
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