Comments (4)
If I got it right, specification and EF Core should handle your request already:
// Assuming Material having a property Type of type MaterialType
internal sealed class MaterialByMaterialTypeNameSpecification : Specification<Material>
{
internal MaterialByMaterialTypeNameSpecification(string name)
{
// Deal with an empty name
ArgumentException.ThrowIfNullOrEmpty(name);
Query.Where(material => material.Type.Name == name)
}
}
// Somewhere in your code
{
private readonly IRepositoryBase<Material> _repository;
// ...
public void Bar(CancellationToken cancellationToken = default)
{
var specification = new MaterialByMaterialTypeNameSpecification("Foo");
List<Material> materials = await _repository.ListAsync(specification, cancellationToken);
// Do something with the returned materials
}
}
from specification.
Hi Thank you for answer. But my question is somehow different.
Let me explain.
I have MachineDto which is also include Machine group And MachineGroup Class.
When i retrivening Machine data including MachineGroup and convert to MachineDto, finally show on table for user. And I already implemented Pagination.
when user try to search MAchineGroupName in the table, serach function is try to search in machine table. On the machine table hasnt machinegroup name in db table.
So that How can i implmemnt this request by using ardalis.specifiacation?
public class MachineBySearchRequestSpec : EntitiesByPaginationFilterSpec<Machine, MachineDto>
{
public MachineBySearchRequestSpec(SearchMachinesRequest request)
: base(request) =>
Query.OrderBy(c => c.Name, !request.HasOrderBy());
}
public class EntitiesByBaseFilterSpec<T> : Specification<T>
{
public EntitiesByBaseFilterSpec(BaseFilter filter) =>
Query.SearchBy(filter);
}
> public class MachineDto : IDto
> {
> public Guid Id { get; set; }
> public string Name { get; set; } = default!;
> public Guid MachineGroupId { get; set; }
> public string MachineGroupName { get; set; } = default!;
> public string EquipmentNo{ get; set; } = default!;
> }
>
> public class MachineGroup
> {
> public Guid Id { get; set; }
> public string Name { get; set; } = default!;
>
> }
> If I got it right, specification and EF Core should handle your request already:
>
> ```cs
> // Assuming Material having a property Type of type MaterialType
>
> internal sealed class MaterialByMaterialTypeNameSpecification : Specification<Material>
> {
> internal MaterialByMaterialTypeNameSpecification(string name)
> {
> // Deal with an empty name
> ArgumentException.ThrowIfNullOrEmpty(name);
>
> Query.Where(material => material.Type.Name == name)
> }
> }
>
> // Somewhere in your code
> {
> private readonly IRepositoryBase<Material> _repository;
>
> // ...
>
> public void Bar(CancellationToken cancellationToken = default)
> {
> var specification = new MaterialByMaterialTypeNameSpecification("Foo");
> List<Material> materials = await _repository.ListAsync(specification, cancellationToken);
> // Do something with the returned materials
> }
> }
> ```
from specification.
Hi...
I'm afraid but I don't understand what you are looking for... In addition there is no SearchBy
property nor method in Query
property of Specification
so I assume you have some extension methods somewhere...
I'd love to help but provide the complete code (regarding the issue, obviously) or a PoC repo
from specification.
from specification.
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from specification.