99 lines
3.0 KiB
C#
99 lines
3.0 KiB
C#
using AutoMapper;
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using AutoMapper.QueryableExtensions;
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using Microsoft.EntityFrameworkCore;
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using Server.Data;
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using Server.Helpers;
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using Server.Models;
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using SharedModels.DataTransferObjects;
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using SharedModels.QueryStringParameters;
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namespace Server.Services;
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public class CountryManagementService : ICountryManagementService
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{
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private readonly ApplicationDbContext _dbContext;
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private readonly IMapper _mapper;
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public CountryManagementService(ApplicationDbContext dbContext,
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IMapper mapper)
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{
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_dbContext = dbContext;
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_mapper = mapper;
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}
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public async Task<(bool isSucceed, string message, CountryDto country)> AddCountry(CreateCountryDto createCountryDto)
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{
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var country = _mapper.Map<Country>(createCountryDto);
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await _dbContext.Countries.AddAsync(country);
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await _dbContext.SaveChangesAsync();
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return (true, String.Empty, _mapper.Map<CountryDto>(country));
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}
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public async Task<(bool isSucceed, string message, PagedList<Country> countries)> GetCountries(CountryParameters parameters)
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{
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var dbCountries = PagedList<Country>.ToPagedList(_dbContext.Countries,
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parameters.PageNumber, parameters.PageSize);
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return (true, "", dbCountries);
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}
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public async Task<(bool isSucceed, string message, CountryDto country)> GetCountry(int id)
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{
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var dbCountry = await _dbContext.Countries.Where(c => c.Id == id)
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.ProjectTo<CountryDto>(_mapper.ConfigurationProvider)
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.FirstOrDefaultAsync();
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if (dbCountry == null)
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{
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return (false, $"Country doesn't exist", null)!;
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}
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return (true, "", dbCountry);
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}
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public async Task<(bool isSucceed, string message, CountryDto country)> UpdateCountry(UpdateCountryDto updateCountryDto)
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{
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var country = _mapper.Map<Country>(updateCountryDto);
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_dbContext.Entry(country).State = EntityState.Modified;
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try
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{
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await _dbContext.SaveChangesAsync();
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}
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catch (DbUpdateConcurrencyException)
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{
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if (!await IsCountryExists(updateCountryDto.Id))
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{
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return (false, $"Country with id:{updateCountryDto.Id} doesn't exist", null)!;
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}
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throw;
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}
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var dbCountry = await _dbContext.Countries.FirstOrDefaultAsync(c => c.Id == country.Id);
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return (true, String.Empty, _mapper.Map<CountryDto>(dbCountry));
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}
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public async Task<(bool isSucceed, string message)> DeleteCountry(int id)
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{
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var dbCountry = await _dbContext.Countries.FirstOrDefaultAsync(c => c.Id == id);
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if (dbCountry == null)
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{
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return (false, $"Country with id:{id} doesn't exist");
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}
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_dbContext.Countries.Remove(dbCountry);
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await _dbContext.SaveChangesAsync();
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return (true, String.Empty);
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}
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public async Task<bool> IsCountryExists(int id)
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{
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return await _dbContext.Countries.AnyAsync(c => c.Id == id);
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}
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} |