public async Task <IActionResult> DeleteCategory([FromRoute(Name = "category_id")] Guid categoryId)
{
// validate input
if (!ModelState.IsValid)
{
return(HttpResult.BadRequest(ModelState));
}
// locate category
var foundCategory = await _bagsContext.TagCategories
.Where(category => category.Id == categoryId)
.SingleOrDefaultAsync();
if (foundCategory == null)
{
return(HttpResult.NoContent());
}
// validate it doesn't have any tags
if (foundCategory.Tags.Any())
{
return(HttpResult.Conflict("Category must have no associated tags before it can be deleted."));
}
// delete
_bagsContext.TagCategories.Remove(foundCategory);
await _bagsContext.SaveChangesAsync();
return(HttpResult.NoContent());
}
public async Task <IActionResult> DeleteTag([FromRoute(Name = "tag_id")] Int32 tagId)
{
// validate input
if (!ModelState.IsValid)
{
return(HttpResult.BadRequest(ModelState));
}
// locate tag
var foundTag = await _bagsContext.Tags
.Include(tag => tag.Products)
.Where(tag => tag.Id == tagId)
.SingleOrDefaultAsync();
if (foundTag == null)
{
return(HttpResult.NoContent());
}
// validate it doesn't have any products
if (foundTag.Products.Any())
{
return(HttpResult.Conflict("Tag must have no associated products before it can be deleted."));
}
// delete
_bagsContext.Tags.Remove(foundTag);
await _bagsContext.SaveChangesAsync();
return(HttpResult.NoContent());
}
public async Task <IActionResult> RemoveTag([FromRoute(Name = "product_id")] Int32 productId, [FromRoute(Name = "tag_id")] Int32 tagId)
{
// validate input
if (!ModelState.IsValid)
{
return(HttpResult.BadRequest(ModelState));
}
// validate product
var foundProduct = await _bagsContext.Products
.Where(product => product.Id == productId)
.SingleOrDefaultAsync();
if (foundProduct == null)
{
return(HttpResult.NotFound($"{productId}"));
}
// validate tag
var foundTag = await _bagsContext.Tags
.Where(tag => tag.Id == tagId)
.SingleOrDefaultAsync();
if (foundTag == null)
{
return(HttpResult.NotFound($"{tagId}"));
}
// locate product tag
var foundProductTag = await _bagsContext.ProductTags
.Where(productTag => productTag.ProductId == foundProduct.Id && productTag.TagId == foundTag.Id)
.SingleOrDefaultAsync();
if (foundProductTag == null)
{
return(HttpResult.NoContent());
}
// delete
_bagsContext.ProductTags.Remove(foundProductTag);
await _bagsContext.SaveChangesAsync();
return(HttpResult.NoContent());
}
public async Task <IActionResult> DeleteProduct([FromRoute(Name = "product_id")] Int32 productId)
{
// validate input
if (!ModelState.IsValid)
{
return(HttpResult.BadRequest(ModelState));
}
// locate product
var foundProduct = await _bagsContext.Products
.Where(product => product.Id == productId)
.SingleOrDefaultAsync();
if (foundProduct == null)
{
return(HttpResult.NoContent());
}
// delete
_bagsContext.Products.Remove(foundProduct);
await _bagsContext.SaveChangesAsync();
return(HttpResult.NoContent());
}