99 lines
2.8 KiB
C#
99 lines
2.8 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using UniversityContracts.BindingModels;
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using UniversityContracts.SearchModels;
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using UniversityContracts.StoragesContracts;
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using UniversityContracts.ViewModels;
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namespace UniversityBusinessLogic.BusinessLogics
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{
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public class EducationGroupLogic
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{
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private readonly IEducationGroupStorage _egStorage;
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public EducationGroupLogic(IEducationGroupStorage cardStorage)
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{
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_egStorage = cardStorage;
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}
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public bool Create(EducationGroupBindingModel model)
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{
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CheckModel(model);
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if (_egStorage.Insert(model) == null)
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{
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return false;
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}
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return true;
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}
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public bool Update(EducationGroupBindingModel model)
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{
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CheckModel(model);
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if (_egStorage.Update(model) == null)
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{
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return false;
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}
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return true;
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}
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public bool Delete(EducationGroupBindingModel model)
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{
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CheckModel(model, false);
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if (_egStorage.Delete(model) == null)
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{
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return false;
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}
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return true;
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}
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public EducationGroupViewModel? ReadElement(EducationGroupSearchModel model)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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var es = _egStorage.GetElement(model);
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if (es == null)
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{
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return null;
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}
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return es;
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}
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public List<EducationGroupViewModel>? ReadList(EducationGroupSearchModel? model)
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{
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var list = model == null ? _egStorage.GetFullList() : _egStorage.GetFilteredList(model);
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if (list == null)
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{
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return null;
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}
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return list;
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}
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private void CheckModel(EducationGroupBindingModel model, bool withParams = true)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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if (!withParams)
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{
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return;
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}
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if (string.IsNullOrEmpty(model.Name))
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{
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throw new ArgumentNullException("Нет названия статуса обучения", nameof(model.Name));
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}
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var es = _egStorage.GetElement(new EducationGroupSearchModel
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{
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Name = model.Name,
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});
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if (es != null && es.Id != model.Id)
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{
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throw new InvalidOperationException("Статус с таким названием уже есть");
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}
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}
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}
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}
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