public async Task <ActionResult <UserGroupShoppingListResult> > DeleteAssignment(string groupId, string listId)
{
var result = new UserGroupShoppingListResult();
var assignment = new UserGroupShoppingList()
{
UserGroupId = groupId,
ShoppingListId = listId
};
try
{
bool deleteResult = await _userGroupShoppingLists.DeleteAsync(assignment);
if (!deleteResult)
{
result.IsSuccessful = false;
result.ErrorMessages.Add($"Could not delete assignment Group:'{groupId}'<-->List:'{listId}'");
return(UnprocessableEntity(result));
}
result.IsSuccessful = true;
}
catch (ItemNotFoundException e)
{
result.IsSuccessful = false;
result.ErrorMessages.Add(e.Message);
return(NotFound(result));
}
catch (PersistencyException e)
{
result.IsSuccessful = false;
result.ErrorMessages.Add(e.Message);
return(NotFound(result));
}
return(Ok(result));
}
public async Task <bool> DeleteAsync(UserGroupShoppingList assignment)
{
var existing = (await GetAllAsync())
.FirstOrDefault(a => a.ShoppingListId == assignment.ShoppingListId && a.UserGroupId == assignment.UserGroupId);
bool result = false;
if (existing != null)
{
_context.UserGroupShoppingLists.Remove(existing);
try
{
await _context.SaveChangesAsync();
result = true;
}
catch
{
result = false;
}
}
else
{
_logger.LogWarning($"No assignment found between list '{assignment.ShoppingListId}' and group '{assignment.UserGroupId}'");
}
return(result);
}
public bool ItemCanBeUpdated(UserGroupShoppingList item)
{
var assignments = _context.UserGroupShoppingLists.ToList();
var itemsWithoutCurrent = assignments.Where(a => a.Id != item.Id).ToList();
return(!(itemsWithoutCurrent.Any(a => a.ShoppingListId == item.ShoppingListId && a.UserGroupId == item.UserGroupId)));
}
public async Task <UserGroupShoppingList> UpdateAsync(string id, UserGroupShoppingList item)
{
if (!ItemCanBeUpdated(item))
{
throw new ItemAlreadyExistsException(typeof(UserGroupShoppingList), id);
}
var existing = await GetAsync(id);
existing.ShoppingListId = item.ShoppingListId;
existing.UserGroupId = item.UserGroupId;
await _context.SaveChangesAsync();
return(existing);
}
public async Task <UserGroupShoppingList> CreateAsync(UserGroupShoppingList item)
{
if (ItemAlreadyExists(item))
{
throw new ItemAlreadyExistsException(typeof(UserGroupShoppingList), item.Id);
}
item.ShoppingList = await GetShoppingListAsync(item.ShoppingListId);
item.UserGroup = await GetUserGroupAsync(item.UserGroupId);
_context.UserGroupShoppingLists.Add(item);
await _context.SaveChangesAsync();
return(item);
}
public async Task <ActionResult <UserGroupShoppingListResult> > CreateAssignment([FromBody] UserGroupShoppingList assignment)
{
var result = new UserGroupShoppingListResult();
try
{
result.IsSuccessful = true;
var created = await _userGroupShoppingLists.CreateAsync(assignment);
result.ResultData.Add(created);
}
catch (ItemAlreadyExistsException e)
{
result.IsSuccessful = false;
result.ErrorMessages.Add(e.Message);
return(Conflict(result));
}
catch (PersistencyException e)
{
result.IsSuccessful = false;
result.ErrorMessages.Add(e.Message);
return(Conflict(result));
}
return(Ok(result));
}
public bool ItemAlreadyExists(UserGroupShoppingList item)
{
var assignments = _context.UserGroupShoppingLists.ToList();
return(assignments.Any(a => a.Id == item.Id || (a.ShoppingListId == item.ShoppingListId && a.UserGroupId == item.UserGroupId)));
}
