public virtual EntityViewer GetViewer <TEntity>() where TEntity : class, IEntity, new()
{
IEntityQueryable <TEntity> context = EntityBuilder.GetContext <TEntity>();
EntityMetadata metadata = EntityAnalyzer.GetMetadata <TEntity>();
EntityViewModel <TEntity> model = new EntityViewModel <TEntity>(context.OrderBy());
model.Headers = metadata.ViewProperties;
model.UpdateItems();
EntityViewer viewer = new EntityViewer(this);
viewer.Model = model;
WpfViewButton createButton = new WpfViewButton();
createButton.Name = "Create";
createButton.Command = new EntityCommand(new EntityCommand.ExecuteDelegate(t =>
{
viewer.NavigationService.Navigate(GetEditor <TEntity>(context.Create()));
}));
model.Buttons = new EntityViewButton[] { createButton };
return(viewer);
}
public virtual ActionResult Index(int page = 1, int size = 20, string parentpath = null, Guid?parentid = null, bool search = false)
{
if (page < 1)
{
return(new HttpStatusCodeResult(400));
}
if (size < 1)
{
return(new HttpStatusCodeResult(400));
}
if (!Metadata.ViewRoles.All(t => User.IsInRole(t)))
{
return(new HttpStatusCodeResult(403));
}
IQueryable <TEntity> queryable = EntityQueryable.Query();
List <EntitySearchItem> searchItems = new List <EntitySearchItem>();
if (search)
{
var keys = Request.QueryString.AllKeys.Where(t => t.StartsWith("Search.")).Select(t => t.Substring(7).Split('.')).GroupBy(t => t[0], t => t.Length == 1 ? "" : "." + t[1]).ToArray();
for (int i = 0; i < keys.Length; i++)
{
string propertyName = keys[i].Key;
PropertyMetadata property = Metadata.GetProperty(propertyName);
if (property == null || !property.Searchable)
{
continue;
}
EntitySearchItem searchItem = new EntitySearchItem();
string[] options = keys[i].ToArray();
switch (property.Type)
{
case ComponentModel.DataAnnotations.CustomDataType.Date:
case ComponentModel.DataAnnotations.CustomDataType.DateTime:
for (int a = 0; a < options.Length; a++)
{
if (options[a] == ".Start")
{
DateTime start;
if (!DateTime.TryParse(Request.QueryString["Search." + keys[i].Key + options[a]], out start))
{
continue;
}
searchItem.MorethanDate = start;
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(Expression.GreaterThanOrEqual(Expression.Property(parameter, property.Property), Expression.Constant(start)), parameter));
}
else if (options[a] == ".End")
{
DateTime end;
if (!DateTime.TryParse(Request.QueryString["Search." + keys[i].Key + options[a]], out end))
{
continue;
}
searchItem.LessthanDate = end;
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(Expression.LessThanOrEqual(Expression.Property(parameter, property.Property), Expression.Constant(end)), parameter));
}
}
break;
case ComponentModel.DataAnnotations.CustomDataType.Boolean:
case ComponentModel.DataAnnotations.CustomDataType.Sex:
if (options[0] == "")
{
bool result;
if (!bool.TryParse(Request.QueryString["Search." + keys[i].Key], out result))
{
continue;
}
searchItem.Equal = result;
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(Expression.Equal(Expression.Property(parameter, property.Property), Expression.Constant(result)), parameter));
}
break;
case ComponentModel.DataAnnotations.CustomDataType.Currency:
case ComponentModel.DataAnnotations.CustomDataType.Integer:
case ComponentModel.DataAnnotations.CustomDataType.Number:
for (int a = 0; a < options.Length; a++)
{
if (options[a] == ".Start")
{
double start;
if (!double.TryParse(Request.QueryString["Search." + keys[i].Key + options[a]], out start))
{
continue;
}
searchItem.Morethan = start;
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(Expression.GreaterThanOrEqual(Expression.Property(parameter, property.Property), Expression.Constant(start)), parameter));
}
else if (options[a] == ".End")
{
double end;
if (!double.TryParse(Request.QueryString["Search." + keys[i].Key + options[a]], out end))
{
continue;
}
searchItem.Lessthan = end;
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(Expression.LessThanOrEqual(Expression.Property(parameter, property.Property), Expression.Constant(end)), parameter));
}
}
break;
case ComponentModel.DataAnnotations.CustomDataType.Other:
if (property.CustomType == "Enum")
{
object result;
try
{
result = Enum.Parse(property.Property.PropertyType, Request.QueryString["Search." + keys[i].Key]);
}
catch
{
continue;
}
searchItem.Enum = new EnumConverter(property.Property.PropertyType).ConvertToString(result);
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(Expression.Equal(Expression.Property(parameter, property.Property), Expression.Constant(result)), parameter));
}
else if (property.CustomType == "Entity")
{
searchItem.Contains = Request.QueryString["Search." + keys[i].Key];
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
Expression expression = Expression.Property(Expression.Property(parameter, property.Property), EntityAnalyzer.GetMetadata(property.Property.PropertyType).DisplayProperty.Property);
expression = Expression.Call(expression, typeof(string).GetMethod("Contains"), Expression.Constant(searchItem.Contains));
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(expression, parameter));
}
break;
default:
if (property.Property.PropertyType == typeof(string))
{
searchItem.Contains = Request.QueryString["Search." + keys[i].Key];
ParameterExpression parameter = Expression.Parameter(Metadata.Type);
Expression expression = Expression.Property(parameter, property.Property);
expression = Expression.Call(expression, typeof(string).GetMethod("Contains"), Expression.Constant(searchItem.Contains));
queryable = queryable.Where <TEntity>(Expression.Lambda <Func <TEntity, bool> >(expression, parameter));
}
break;
}
if (searchItem.Contains != null || searchItem.Enum != null || searchItem.Equal.HasValue || searchItem.Lessthan.HasValue || searchItem.LessthanDate.HasValue || searchItem.Morethan.HasValue || searchItem.MorethanDate.HasValue)
{
searchItem.Name = property.Name;
}
if (searchItem.Name != null)
{
searchItems.Add(searchItem);
}
}
}
else
{
if (parentpath != null && parentid.HasValue)
{
try
{
queryable = EntityQueryable.InParent(queryable, parentpath, parentid.Value);
}
catch
{
return(new HttpStatusCodeResult(400));
}
}
}
var model = new EntityViewModel <TEntity>(EntityQueryable.OrderBy(queryable), page, size);
if (Metadata.ParentProperty != null && !search)
{
model.Parent = GetParentModel(parentid, Metadata.ParentLevel);
}
model.SearchItem = searchItems.ToArray();
model.Headers = Metadata.ViewProperties;
model.PageSizeOption = PageSize;
model.UpdateItems();
return(View(model));
}