IO420
53 lines
1.5 KiB
TypeScript
53 lines
1.5 KiB
TypeScript
import { Injectable, NotFoundException } from '@nestjs/common';
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import { CreateStudentDto } from './dto/create-student.dto';
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import { UpdateStudentDto } from './dto/update-student.dto';
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import { Student } from './entities/student.entity';
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import { EntityManager, Repository } from 'typeorm';
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import { InjectRepository } from '@nestjs/typeorm';
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@Injectable()
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export class StudentService {
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constructor(
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@InjectRepository(Student)
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private readonly studentRepository: Repository<Student>,
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) {}
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async create(createStudentDto: CreateStudentDto): Promise<Student> {
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const student = this.studentRepository.create(createStudentDto);
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return await this.studentRepository.save(student);
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}
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findAll(): Promise<Student[]> {
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return this.studentRepository.find({ skip: 5000, take: 50 });
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}
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async findOne(id_cuenta: number): Promise<Student> {
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const student = await this.studentRepository.findOne({
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where: { id_cuenta },
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});
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if (!student) {
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throw new NotFoundException(`Student with ID ${id_cuenta} not found`);
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}
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return student;
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}
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async GetCredit(id_cuenta: number): Promise<Student['credito']> {
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const student = await this.findOne(id_cuenta);
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return student.credito;
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}
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async UpdateCredit(
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id_cuenta: number,
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credit: number,
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manager: EntityManager,
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) {
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const repo = manager.getRepository(Student);
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return await repo
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.createQueryBuilder()
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.update()
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.set({ credito: () => `credito - ${credit}` })
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.where({ id_cuenta })
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.execute();
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}
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}
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