/// <summary>
/// Exists the specified city.
/// </summary>
/// <param name="city">The city.</param>
/// <returns>Task<System.Boolean>.</returns>
public async Task<bool> Exist(City city)
{
using (ChePingContext db = new ChePingContext())
{
return await db.Cities.AnyAsync(c => c.ProvinceName == city.ProvinceName && c.CityName == city.CityName);
}
}
public async Task<IHttpActionResult> Exist(CityDto dto)
{
City city = new City
{
CityName = dto.CityName,
ProvinceName = dto.ProvinceName
};
return this.Ok(new BoolResponse { Result = await this.cityService.Exist(city) });
}
/// <summary>
/// Creates the specified city.
/// </summary>
/// <param name="city">The city.</param>
/// <returns>Task<City>.</returns>
/// <exception cref="ApplicationException">城市信息已经存在</exception>
public async Task<City> Create(City city)
{
if (await this.Exist(city))
{
throw new ApplicationException("城市信息已经存在");
}
using (ChePingContext db = new ChePingContext())
{
await db.SaveAsync(city);
}
return city;
}
public async Task<IHttpActionResult> Create(CityDto dto)
{
City city = new City
{
CityName = dto.CityName,
ProvinceName = dto.ProvinceName
};
if (await this.cityService.Exist(city))
{
return this.BadRequest("城市信息已经存在");
}
return this.Ok((await this.cityService.Create(city)).ToDto());
}