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Enforce unique catalog titles on creation

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Added a uniqueness check for catalog titles in the creation flow. The service now prevents creating catalogs with duplicate titles by checking for existing entries before insertion. If a duplicate is detected, the API returns a 409 Conflict response. Updated interfaces and repository to support title-based lookups.
This commit is contained in:
OlgunR
2026-01-16 13:42:46 +01:00
parent 215e526230
commit 904e6e20f0
5 changed files with 19 additions and 2 deletions
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9
DbFirst.Application/Catalogs/CatalogService.cs
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@@ -27,8 +27,14 @@ public class CatalogService : ICatalogService
return item == null ? null : _mapper.Map<CatalogReadDto>(item);
}
public async Task<CatalogReadDto> CreateAsync(CatalogWriteDto dto, CancellationToken cancellationToken = default)
public async Task<CatalogReadDto?> CreateAsync(CatalogWriteDto dto, CancellationToken cancellationToken = default)
{
var existing = await _repository.GetByTitleAsync(dto.CatTitle, cancellationToken);
if (existing != null)
{
return null;
}
var entity = _mapper.Map<VwmyCatalog>(dto);
entity.AddedWho = "system";
entity.AddedWhen = DateTime.UtcNow;
@@ -49,6 +55,7 @@ public class CatalogService : ICatalogService
var entity = _mapper.Map<VwmyCatalog>(dto);
entity.Guid = id;
entity.CatTitle = existing.CatTitle;
entity.AddedWho = existing.AddedWho;
entity.AddedWhen = existing.AddedWhen;
entity.ChangedWho = "system";

2
DbFirst.Application/Catalogs/ICatalogService.cs
View File

@@ -4,7 +4,7 @@ public interface ICatalogService
{
Task<List<CatalogReadDto>> GetAllAsync(CancellationToken cancellationToken = default);
Task<CatalogReadDto?> GetByIdAsync(int id, CancellationToken cancellationToken = default);
Task<CatalogReadDto> CreateAsync(CatalogWriteDto dto, CancellationToken cancellationToken = default);
Task<CatalogReadDto?> CreateAsync(CatalogWriteDto dto, CancellationToken cancellationToken = default);
Task<CatalogReadDto?> UpdateAsync(int id, CatalogWriteDto dto, CancellationToken cancellationToken = default);
Task<bool> DeleteAsync(int id, CancellationToken cancellationToken = default);
}