iot/projects/Platform/Areas/UserCenter/Controllers/AreaController.cs

using Infrastructure.Application;
using Infrastructure.Data;
using Infrastructure.Extensions;
using Infrastructure.Web.Mvc;
using IoT.Shared.Application.Domain.Entities;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Platform.Application.Models;
using Platform.Areas.IoTCenter.Controllers;
using System;
using System.Linq;

namespace Platform.Areas.UserCenter.Controllers
{
    [Authorize]
    [ApiController]
    [Route("UserCenter/[controller]/[action]")]
    [Area("UserCenter")]
    [ControllerScope(ControllerScopeType.Platform)]
    public class AreaController : TreeCrudController<Area, EditAreaModel>
    {
        private readonly AjaxController _ajax;

        public AreaController(IRepository<Area> repo, AjaxController ajax) : base(repo)
        {
            this._ajax = ajax;
        }

        public override IQueryable<Area> Query(PagedListModel<EditAreaModel> model, IQueryable<Area> query)
        {
            return query
                .Where(o => o.ParentId != null)
                .WhereIf(!string.IsNullOrEmpty(model.Query.Name), o => o.Name.Contains(model.Query.Name))
                .WhereIf(!string.IsNullOrEmpty(model.Query.Number), o => o.Name.Contains(model.Query.Number))
                .WhereIf(model.Query.Type.HasValue, o => o.Type == model.Query.Type.Value)
                .WhereIf(!string.IsNullOrEmpty(model.Query.CustomType), o => o.CustomType.Contains(model.Query.CustomType))
                .WhereIf(model.Query.ParentId.HasValue, o => o.ParentId == model.Query.ParentId.Value)
                .OrderBy(o => o.ParentId).ThenBy(o => o.DisplayOrder);
        }

        public override void ToDisplayModel(Area entity, EditAreaModel model)
        {
            if (model.ParentId.HasValue)
            {
                var name = this.Repo.ReadOnlyTable()
                    .Where(o => o.Left < entity.Left && o.Left > 1).ToList()
                    .ToList()
                    .ToTree()
                    .FirstOrDefault(o => o.Id == model.ParentId.Value)?.GetDisplayName();
                ViewData.Add(model.ParentId.Value, name);
            }
        }

        public override void ToEditModel(Area entity, EditAreaModel model)
        {
            ViewData.SelectList(o => model.ParentId, () => this._ajax.GetArea(model.ParentId).SelectList());
        }
    }
}