import { FindManyOptions } from "./FindManyOptions";
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import { FindOneOptions } from "./FindOneOptions";
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import { SelectQueryBuilder } from "../query-builder/SelectQueryBuilder";
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import { EntityMetadata } from "../metadata/EntityMetadata";
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/**
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* Utilities to work with FindOptions.
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*/
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export declare class FindOptionsUtils {
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/**
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* Checks if given object is really instance of FindOneOptions interface.
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*/
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static isFindOneOptions(obj: any): obj is FindOneOptions<any>;
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/**
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* Checks if given object is really instance of FindManyOptions interface.
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*/
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static isFindManyOptions(obj: any): obj is FindManyOptions<any>;
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/**
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* Checks if given object is really instance of FindOptions interface.
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*/
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static extractFindManyOptionsAlias(object: any): string | undefined;
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/**
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* Applies give find many options to the given query builder.
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*/
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static applyFindManyOptionsOrConditionsToQueryBuilder<T>(qb: SelectQueryBuilder<T>, options: FindManyOptions<T> | Partial<T> | undefined): SelectQueryBuilder<T>;
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/**
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* Applies give find options to the given query builder.
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*/
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static applyOptionsToQueryBuilder<T>(qb: SelectQueryBuilder<T>, options: FindOneOptions<T> | FindManyOptions<T> | undefined): SelectQueryBuilder<T>;
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/**
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* Adds joins for all relations and sub-relations of the given relations provided in the find options.
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*/
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protected static applyRelationsRecursively(qb: SelectQueryBuilder<any>, allRelations: string[], alias: string, metadata: EntityMetadata, prefix: string): void;
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static joinEagerRelations(qb: SelectQueryBuilder<any>, alias: string, metadata: EntityMetadata): void;
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}
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