feat: add custom object create and update (#1869)

server/src/tenant/entity-resolver/entity-resolver.service.ts

@@ -6,12 +6,20 @@ import {
 
 import { GraphQLResolveInfo } from 'graphql';
 import graphqlFields from 'graphql-fields';
+import { v4 as uuidv4 } from 'uuid';
 
 import { DataSourceService } from 'src/metadata/data-source/data-source.service';
 import { EnvironmentService } from 'src/integrations/environment/environment.service';
+import { pascalCase } from 'src/utils/pascal-case';
 
 import { convertFieldsToGraphQL } from './entity-resolver.util';
 
+function stringify(obj: any) {
+  const jsonString = JSON.stringify(obj);
+  const jsonWithoutQuotes = jsonString.replace(/"(\w+)"\s*:/g, '$1:');
+  return jsonWithoutQuotes;
+}
+
 @Injectable()
 export class EntityResolverService {
   constructor(
@@ -49,7 +57,7 @@ export class EntityResolverService {
     const graphqlResult = await workspaceDataSource?.query(`
       SELECT graphql.resolve($$
         {
-          ${entityName}Collection: ${tableName}Collection {
+          findAll${pascalCase(entityName)}: ${tableName}Collection {
             ${graphqlQuery}
           }
         }
@@ -57,7 +65,7 @@ export class EntityResolverService {
     `);
 
     const result =
-      graphqlResult?.[0]?.resolve?.data?.[`${entityName}Collection`];
+      graphqlResult?.[0]?.resolve?.data?.[`findAll${pascalCase(entityName)}`];
 
     if (!result) {
       throw new BadRequestException('Malformed result from GraphQL query');
@@ -93,7 +101,9 @@ export class EntityResolverService {
     const graphqlResult = await workspaceDataSource?.query(`
       SELECT graphql.resolve($$
         {
-          ${entityName}Collection: : ${tableName}Collection(filter: { id: { eq: "${args.id}" } }) {
+          findOne${pascalCase(
+            entityName,
+          )}: ${tableName}Collection(filter: { id: { eq: "${args.id}" } }) {
             ${graphqlQuery}
           }
         }
@@ -101,10 +111,168 @@ export class EntityResolverService {
     `);
 
     const result =
-      graphqlResult?.[0]?.resolve?.data?.[`${entityName}Collection`];
+      graphqlResult?.[0]?.resolve?.data?.[`findOne${pascalCase(entityName)}`];
 
     if (!result) {
-      return null;
+      throw new BadRequestException('Malformed result from GraphQL query');
+    }
+
+    return result;
+  }
+
+  async createOne(
+    entityName: string,
+    tableName: string,
+    args: { data: any },
+    workspaceId: string,
+    info: GraphQLResolveInfo,
+    fieldAliases: Record<string, string>,
+  ) {
+    if (!this.environmentService.isFlexibleBackendEnabled()) {
+      throw new ForbiddenException();
+    }
+
+    const workspaceDataSource =
+      await this.dataSourceService.connectToWorkspaceDataSource(workspaceId);
+
+    const graphqlQuery = await this.prepareGrapQLQuery(
+      workspaceId,
+      info,
+      fieldAliases,
+    );
+
+    await workspaceDataSource?.query(`
+      SET search_path TO ${this.dataSourceService.getSchemaName(workspaceId)};
+    `);
+    const graphqlResult = await workspaceDataSource?.query(`
+      SELECT graphql.resolve($$
+          mutation {
+            createOne${pascalCase(
+              entityName,
+            )}: insertInto${tableName}Collection(objects: [${stringify({
+      id: uuidv4(),
+      ...args.data,
+    })}]) {
+              affectedCount
+              records {
+                ${graphqlQuery}
+              }
+            }
+          }
+      $$);
+    `);
+
+    const result =
+      graphqlResult?.[0]?.resolve?.data?.[`createOne${pascalCase(entityName)}`]
+        ?.records[0];
+
+    if (!result) {
+      throw new BadRequestException('Malformed result from GraphQL query');
+    }
+
+    return result;
+  }
+
+  async createMany(
+    entityName: string,
+    tableName: string,
+    args: { data: any[] },
+    workspaceId: string,
+    info: GraphQLResolveInfo,
+    fieldAliases: Record<string, string>,
+  ) {
+    if (!this.environmentService.isFlexibleBackendEnabled()) {
+      throw new ForbiddenException();
+    }
+
+    const workspaceDataSource =
+      await this.dataSourceService.connectToWorkspaceDataSource(workspaceId);
+
+    const graphqlQuery = await this.prepareGrapQLQuery(
+      workspaceId,
+      info,
+      fieldAliases,
+    );
+
+    await workspaceDataSource?.query(`
+      SET search_path TO ${this.dataSourceService.getSchemaName(workspaceId)};
+    `);
+    const graphqlResult = await workspaceDataSource?.query(`
+      SELECT graphql.resolve($$
+        mutation {
+          insertInto${entityName}Collection: insertInto${tableName}Collection(objects: ${stringify(
+      args.data.map((datum) => ({
+        id: uuidv4(),
+        ...datum,
+      })),
+    )}) {
+            affectedCount
+            records {
+              ${graphqlQuery}
+            }
+          }
+        }
+      $$);
+    `);
+
+    const result =
+      graphqlResult?.[0]?.resolve?.data?.[`insertInto${entityName}Collection`]
+        ?.records;
+
+    if (!result) {
+      throw new BadRequestException('Malformed result from GraphQL query');
+    }
+
+    return result;
+  }
+
+  async updateOne(
+    entityName: string,
+    tableName: string,
+    args: { id: string; data: any },
+    workspaceId: string,
+    info: GraphQLResolveInfo,
+    fieldAliases: Record<string, string>,
+  ) {
+    if (!this.environmentService.isFlexibleBackendEnabled()) {
+      throw new ForbiddenException();
+    }
+
+    const workspaceDataSource =
+      await this.dataSourceService.connectToWorkspaceDataSource(workspaceId);
+
+    const graphqlQuery = await this.prepareGrapQLQuery(
+      workspaceId,
+      info,
+      fieldAliases,
+    );
+
+    await workspaceDataSource?.query(`
+      SET search_path TO ${this.dataSourceService.getSchemaName(workspaceId)};
+    `);
+    const graphqlResult = await workspaceDataSource?.query(`
+      SELECT graphql.resolve($$
+          mutation {
+            updateOne${pascalCase(
+              entityName,
+            )}: update${tableName}Collection(set: ${stringify(
+      args.data,
+    )}, filter: { id: { eq: "${args.id}" } }) {
+              affectedCount
+              records {
+                ${graphqlQuery}
+              }
+            }
+          }
+      $$);
+    `);
+
+    const result =
+      graphqlResult?.[0]?.resolve?.data?.[`updateOne${pascalCase(entityName)}`]
+        ?.records[0];
+
+    if (!result) {
+      throw new BadRequestException('Malformed result from GraphQL query');
     }
 
     return result;

server/src/tenant/schema-generation/graphql-types/object.graphql-type.ts

@@ -2,6 +2,7 @@ import {
   GraphQLBoolean,
   GraphQLEnumType,
   GraphQLID,
+  GraphQLInputObjectType,
   GraphQLInt,
   GraphQLNonNull,
   GraphQLObjectType,
@@ -51,6 +52,7 @@ const mapColumnTypeToGraphQLType = (column: FieldMetadata): any => {
  * Generate a GraphQL object type based on the name and columns.
  * @param name Name for the GraphQL object.
  * @param columns Array of FieldMetadata columns.
+ * @returns GraphQLObjectType
  */
 export const generateObjectType = <TSource = any, TContext = any>(
   name: string,
@@ -82,6 +84,64 @@ export const generateObjectType = <TSource = any, TContext = any>(
   });
 };
 
+/**
+ * Generate a GraphQL create input type based on the name and columns.
+ * @param name Name for the GraphQL input.
+ * @param columns Array of FieldMetadata columns.
+ * @returns GraphQLInputObjectType
+ */
+export const generateCreateInputType = (
+  name: string,
+  columns: FieldMetadata[],
+): GraphQLInputObjectType => {
+  const fields: Record<string, any> = {};
+
+  columns.forEach((column) => {
+    let graphqlType = mapColumnTypeToGraphQLType(column);
+
+    if (!column.isNullable) {
+      graphqlType = new GraphQLNonNull(graphqlType);
+    }
+
+    fields[column.displayName] = {
+      type: graphqlType,
+      description: column.targetColumnName,
+    };
+  });
+
+  return new GraphQLInputObjectType({
+    name: `${pascalCase(name)}CreateInput`,
+    fields,
+  });
+};
+
+/**
+ * Generate a GraphQL update input type based on the name and columns.
+ * @param name Name for the GraphQL input.
+ * @param columns Array of FieldMetadata columns.
+ * @returns GraphQLInputObjectType
+ */
+export const generateUpdateInputType = (
+  name: string,
+  columns: FieldMetadata[],
+): GraphQLInputObjectType => {
+  const fields: Record<string, any> = {};
+
+  columns.forEach((column) => {
+    const graphqlType = mapColumnTypeToGraphQLType(column);
+    // No GraphQLNonNull wrapping here, so all fields are optional
+    fields[column.displayName] = {
+      type: graphqlType,
+      description: column.targetColumnName,
+    };
+  });
+
+  return new GraphQLInputObjectType({
+    name: `${pascalCase(name)}UpdateInput`,
+    fields,
+  });
+};
+
 /**
  * Generate multiple GraphQL object types based on an array of object metadata.
  * @param objectMetadata Array of ObjectMetadata.

server/src/tenant/schema-generation/schema-generation.service.ts

@@ -2,6 +2,8 @@ import { Injectable, InternalServerErrorException } from '@nestjs/common';
 
 import {
   GraphQLID,
+  GraphQLInputObjectType,
+  GraphQLList,
   GraphQLNonNull,
   GraphQLObjectType,
   GraphQLResolveInfo,
@@ -16,7 +18,11 @@ import { ObjectMetadata } from 'src/metadata/object-metadata/object-metadata.ent
 
 import { generateEdgeType } from './graphql-types/edge.graphql-type';
 import { generateConnectionType } from './graphql-types/connection.graphql-type';
-import { generateObjectTypes } from './graphql-types/object.graphql-type';
+import {
+  generateCreateInputType,
+  generateObjectType,
+  generateUpdateInputType,
+} from './graphql-types/object.graphql-type';
 
 @Injectable()
 export class SchemaGenerationService {
@@ -46,7 +52,7 @@ export class SchemaGenerationService {
     const ConnectionType = generateConnectionType(EdgeType);
 
     return {
-      [`findAll${pascalCase(entityName)}`]: {
+      [`findMany${pascalCase(entityName)}`]: {
         type: ConnectionType,
         resolve: async (root, args, context, info: GraphQLResolveInfo) => {
           return this.entityResolverService.findAll(
@@ -77,39 +83,142 @@ export class SchemaGenerationService {
     };
   }
 
-  private generateQueryType(
-    ObjectTypes: Record<string, GraphQLObjectType>,
+  private generateMutationFieldForEntity(
+    entityName: string,
+    tableName: string,
+    ObjectType: GraphQLObjectType,
+    CreateInputType: GraphQLInputObjectType,
+    UpdateInputType: GraphQLInputObjectType,
+    objectDefinition: ObjectMetadata,
+    workspaceId: string,
+  ) {
+    const fieldAliases =
+      objectDefinition?.fields.reduce(
+        (acc, field) => ({
+          ...acc,
+          [field.displayName]: field.targetColumnName,
+        }),
+        {},
+      ) || {};
+
+    return {
+      [`createOne${pascalCase(entityName)}`]: {
+        type: new GraphQLNonNull(ObjectType),
+        args: {
+          data: { type: new GraphQLNonNull(CreateInputType) },
+        },
+        resolve: (root, args, context, info) => {
+          return this.entityResolverService.createOne(
+            entityName,
+            tableName,
+            args,
+            workspaceId,
+            info,
+            fieldAliases,
+          );
+        },
+      },
+      [`createMany${pascalCase(entityName)}`]: {
+        type: new GraphQLList(ObjectType),
+        args: {
+          data: {
+            type: new GraphQLNonNull(
+              new GraphQLList(new GraphQLNonNull(CreateInputType)),
+            ),
+          },
+        },
+        resolve: (root, args, context, info) => {
+          return this.entityResolverService.createMany(
+            entityName,
+            tableName,
+            args,
+            workspaceId,
+            info,
+            fieldAliases,
+          );
+        },
+      },
+      [`updateOne${pascalCase(entityName)}`]: {
+        type: new GraphQLNonNull(ObjectType),
+        args: {
+          id: { type: new GraphQLNonNull(GraphQLID) },
+          data: { type: new GraphQLNonNull(UpdateInputType) },
+        },
+        resolve: (root, args, context, info) => {
+          return this.entityResolverService.updateOne(
+            entityName,
+            tableName,
+            args,
+            workspaceId,
+            info,
+            fieldAliases,
+          );
+        },
+      },
+    };
+  }
+
+  private generateQueryAndMutationTypes(
     objectMetadata: ObjectMetadata[],
     workspaceId: string,
-  ): GraphQLObjectType {
-    const fields: any = {};
+  ): { query: GraphQLObjectType; mutation: GraphQLObjectType } {
+    const queryFields: any = {};
+    const mutationFields: any = {};
 
-    for (const [entityName, ObjectType] of Object.entries(ObjectTypes)) {
-      const objectDefinition = objectMetadata.find(
-        (object) => object.displayName === entityName,
-      );
+    for (const objectDefinition of objectMetadata) {
       const tableName = objectDefinition?.targetTableName ?? '';
+      const ObjectType = generateObjectType(
+        objectDefinition.displayName,
+        objectDefinition.fields,
+      );
+      const CreateInputType = generateCreateInputType(
+        objectDefinition.displayName,
+        objectDefinition.fields,
+      );
+      const UpdateInputType = generateUpdateInputType(
+        objectDefinition.displayName,
+        objectDefinition.fields,
+      );
 
       if (!objectDefinition) {
         throw new InternalServerErrorException('Object definition not found');
       }
 
       Object.assign(
-        fields,
+        queryFields,
         this.generateQueryFieldForEntity(
-          entityName,
+          objectDefinition.displayName,
           tableName,
           ObjectType,
           objectDefinition,
           workspaceId,
         ),
       );
+
+      Object.assign(
+        mutationFields,
+        this.generateMutationFieldForEntity(
+          objectDefinition.displayName,
+          tableName,
+          ObjectType,
+          CreateInputType,
+          UpdateInputType,
+          objectDefinition,
+          workspaceId,
+        ),
+      );
     }
 
-    return new GraphQLObjectType({
-      name: 'Query',
-      fields,
-    });
+    return {
+      query: new GraphQLObjectType({
+        name: 'Query',
+        fields: queryFields,
+      }),
+      mutation: new GraphQLObjectType({
+        name: 'Mutation',
+        fields: mutationFields,
+      }),
+    };
   }
 
   async generateSchema(
@@ -136,15 +245,14 @@ export class SchemaGenerationService {
         dataSourceMetadata.id,
       );
 
-    const ObjectTypes = generateObjectTypes(objectMetadata);
-    const QueryType = this.generateQueryType(
-      ObjectTypes,
+    const { query, mutation } = this.generateQueryAndMutationTypes(
       objectMetadata,
       workspaceId,
     );
 
     return new GraphQLSchema({
-      query: QueryType,
+      query,
+      mutation,
     });
   }
 }