97 lines
4.0 KiB
C#
97 lines
4.0 KiB
C#
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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using UniversityDatabaseImplement.Models;
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using Microsoft.EntityFrameworkCore;
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namespace UniversityDatabaseImplement.Implements
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{
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public class RequirementStorage : IRequirementStorage
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{
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private void CheckSearchModel(RequirementSearchModel model)
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{
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if (model == null)
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throw new ArgumentNullException("Передаваемая модель для поиска равна нулю", nameof(model));
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if (!model.Id.HasValue && !model.DirectorId.HasValue)
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throw new ArgumentException("Все передаваемые поля поисковой модели оказались пусты или равны null");
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}
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public RequirementViewModel? Delete(RequirementBindingModel model)
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{
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using var context = new UniversityDB();
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var element = context.Requirements.FirstOrDefault(x => x.Id == model.Id);
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if (element != null)
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{
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context.Requirements.Remove(element);
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context.SaveChanges();
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return element;
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}
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return null;
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}
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public RequirementViewModel? GetElement(RequirementSearchModel model)
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{
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CheckSearchModel(model);
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using var context = new UniversityDB();
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if (!model.Id.HasValue)
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{
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return null;
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}
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return context.Requirements
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.Include(requirement => requirement.Director)
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.Include(requirement => requirement.Disciplines).ThenInclude(requirementByDiscipline => requirementByDiscipline.Discipline)
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.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id);
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}
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public List<RequirementViewModel> GetFilteredList(RequirementSearchModel model)
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{
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CheckSearchModel(model);
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using var context = new UniversityDB();
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return context.Requirements
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.Include(requirement => requirement.Director)
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.Include(requirement => requirement.Disciplines).ThenInclude(requirementByDiscipline => requirementByDiscipline.Discipline)
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.Where(x => x.DirectorId == model.DirectorId)
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.Select(x => (RequirementViewModel)x)
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.ToList();
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}
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public List<RequirementViewModel> GetFullList()
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{
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using var context = new UniversityDB();
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return context.Requirements
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.Include(requirement => requirement.Director)
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.Include(requirement => requirement.Disciplines).ThenInclude(requirementByDiscipline => requirementByDiscipline.Discipline)
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.Select(x => (RequirementViewModel)x)
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.ToList();
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}
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public RequirementViewModel? Insert(RequirementBindingModel model)
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{
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var newRequirement = Requirement.Create(model);
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if (newRequirement == null)
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{
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return null;
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}
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using var context = new UniversityDB();
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// Согласно тз при создании требований не требуется связывать ее с дисциплиными, поэтому нет UpdateDisciplines
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context.Requirements.Add(newRequirement);
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context.SaveChanges();
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return newRequirement;
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}
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public RequirementViewModel? Update(RequirementBindingModel model)
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{
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using var context = new UniversityDB();
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var requirement = context.Requirements.FirstOrDefault(x => x.Id == model.Id);
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if (requirement == null)
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{
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return null;
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}
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requirement.Update(model);
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context.SaveChanges();
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requirement.UpdateDisciplines(context, model);
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context.SaveChanges();
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return requirement;
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}
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}
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}
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