Implemented dataloader for relation metadata (#4891)
- Implemented dataloader package on metadata graphql server - Implemented a dataloader for relation metadata module --------- Co-authored-by: Jérémy M <jeremy.magrin@gmail.com>
This commit is contained in:
@ -5,6 +5,7 @@ import {
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} from '@nestjs/common';
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import {
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Args,
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Context,
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Mutation,
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Parent,
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ResolveField,
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@ -12,6 +13,7 @@ import {
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} from '@nestjs/graphql';
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import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';
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import { IDataloaders } from 'src/engine/dataloaders/dataloader.interface';
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import { AuthWorkspace } from 'src/engine/decorators/auth/auth-workspace.decorator';
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import { JwtAuthGuard } from 'src/engine/guards/jwt.auth.guard';
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import { CreateOneFieldMetadataInput } from 'src/engine/metadata-modules/field-metadata/dtos/create-field.input';
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@ -89,7 +91,21 @@ export class FieldMetadataResolver {
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@ResolveField(() => RelationDefinitionDTO, { nullable: true })
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async relationDefinition(
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@Parent() fieldMetadata: FieldMetadataDTO,
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@Context() context: { loaders: IDataloaders },
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): Promise<RelationDefinitionDTO | null> {
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return await this.fieldMetadataService.getRelationDefinition(fieldMetadata);
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if (fieldMetadata.type !== FieldMetadataType.RELATION) {
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return null;
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}
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const relationMetadataItem =
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await context.loaders.relationMetadataLoader.load(fieldMetadata.id);
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const relationDefinition =
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await this.fieldMetadataService.getRelationDefinitionFromRelationMetadata(
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fieldMetadata,
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relationMetadataItem,
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);
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return relationDefinition;
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}
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}
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@ -485,68 +485,48 @@ export class FieldMetadataService extends TypeOrmQueryService<FieldMetadataEntit
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return fieldMetadataInputOverrided as UpdateFieldInput;
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}
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public async getRelationDefinition(
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fieldMetadata: FieldMetadataDTO,
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public async getRelationDefinitionFromRelationMetadata(
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fieldMetadataDTO: FieldMetadataDTO,
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relationMetadata: RelationMetadataEntity,
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): Promise<RelationDefinitionDTO | null> {
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if (fieldMetadata.type !== FieldMetadataType.RELATION) {
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if (fieldMetadataDTO.type !== FieldMetadataType.RELATION) {
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return null;
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}
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const foundRelationMetadata = await this.relationMetadataRepository.findOne(
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{
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where: [
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{ fromFieldMetadataId: fieldMetadata.id },
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{ toFieldMetadataId: fieldMetadata.id },
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],
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relations: [
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'fromObjectMetadata',
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'toObjectMetadata',
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'fromFieldMetadata',
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'toFieldMetadata',
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],
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},
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);
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if (!foundRelationMetadata) {
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throw new Error('RelationMetadata not found');
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}
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const isRelationFromSource =
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foundRelationMetadata.fromFieldMetadata.id === fieldMetadata.id;
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relationMetadata.fromFieldMetadata.id === fieldMetadataDTO.id;
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// TODO: implement MANY_TO_MANY
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if (
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foundRelationMetadata.relationType === RelationMetadataType.MANY_TO_MANY
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) {
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if (relationMetadata.relationType === RelationMetadataType.MANY_TO_MANY) {
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throw new Error(`
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Relation type ${foundRelationMetadata.relationType} not supported
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Relation type ${relationMetadata.relationType} not supported
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`);
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}
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if (isRelationFromSource) {
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const direction =
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foundRelationMetadata.relationType === RelationMetadataType.ONE_TO_ONE
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relationMetadata.relationType === RelationMetadataType.ONE_TO_ONE
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? RelationDefinitionType.ONE_TO_ONE
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: RelationDefinitionType.ONE_TO_MANY;
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return {
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sourceObjectMetadata: foundRelationMetadata.fromObjectMetadata,
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sourceFieldMetadata: foundRelationMetadata.fromFieldMetadata,
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targetObjectMetadata: foundRelationMetadata.toObjectMetadata,
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targetFieldMetadata: foundRelationMetadata.toFieldMetadata,
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sourceObjectMetadata: relationMetadata.fromObjectMetadata,
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sourceFieldMetadata: relationMetadata.fromFieldMetadata,
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targetObjectMetadata: relationMetadata.toObjectMetadata,
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targetFieldMetadata: relationMetadata.toFieldMetadata,
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direction,
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};
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} else {
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const direction =
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foundRelationMetadata.relationType === RelationMetadataType.ONE_TO_ONE
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relationMetadata.relationType === RelationMetadataType.ONE_TO_ONE
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? RelationDefinitionType.ONE_TO_ONE
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: RelationDefinitionType.MANY_TO_ONE;
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return {
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sourceObjectMetadata: foundRelationMetadata.toObjectMetadata,
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sourceFieldMetadata: foundRelationMetadata.toFieldMetadata,
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targetObjectMetadata: foundRelationMetadata.fromObjectMetadata,
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targetFieldMetadata: foundRelationMetadata.fromFieldMetadata,
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sourceObjectMetadata: relationMetadata.toObjectMetadata,
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sourceFieldMetadata: relationMetadata.toFieldMetadata,
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targetObjectMetadata: relationMetadata.fromObjectMetadata,
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targetFieldMetadata: relationMetadata.fromFieldMetadata,
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direction,
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};
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}
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@ -317,4 +317,43 @@ export class RelationMetadataService extends TypeOrmQueryService<RelationMetadat
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return deletedRelationMetadata;
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}
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async findManyRelationMetadataByFieldMetadataIds(
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fieldMetadataIds: string[],
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): Promise<(RelationMetadataEntity | NotFoundException)[]> {
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const relationMetadataCollection =
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await this.relationMetadataRepository.find({
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where: [
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{
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fromFieldMetadataId: In(fieldMetadataIds),
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},
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{
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toFieldMetadataId: In(fieldMetadataIds),
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},
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],
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relations: [
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'fromObjectMetadata',
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'toObjectMetadata',
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'fromFieldMetadata',
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'toFieldMetadata',
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],
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});
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const mappedResult = fieldMetadataIds.map((fieldMetadataId) => {
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const foundRelationMetadataItem = relationMetadataCollection.find(
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(relationMetadataItem) =>
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relationMetadataItem.fromFieldMetadataId === fieldMetadataId ||
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relationMetadataItem.toFieldMetadataId === fieldMetadataId,
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);
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return (
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foundRelationMetadataItem ??
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new NotFoundException(
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`RelationMetadata with fieldMetadataId ${fieldMetadataId} not found`,
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)
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);
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});
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return mappedResult;
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}
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}
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