The problem here are PHP namespaces. You need to learn how to use them. As your controller are in App\Http\Controllers namespace, if you refer any other class, you need to add leading backslash (or proper namespace) or add use statement at the beginning of file (before class definition). So in your case you could use: … Read more
I would say this is good example of using ViewModel here. I would suggest something like – Create ViewModel with the composition of the two classes public class AddWeightModel { [Required] [DataType(DataType.Text)] [Display(Name = “Stone”)] public Nullable<short> Stone { get; set; } [Required] [DataType(DataType.Text)] [Display(Name = “Pound”)] public Nullable<short> Pound { get; set; } } … Read more
It’s natural for model classes to contain methods to operate on the model. If I have a Book model, with a method book.get_noun_count(), that’s where it belongs–I don’t want to have to write “get_noun_count(book)“, unless the method actually intrinsically belongs with some other package. (It might–for example, if I have a package for accessing Amazon’s … Read more
I wouldn’t call it an issue. This is default behaviour for many database systems. Basically, the auto-increment counter for a table is persistent, and deleting entries does not affect the counter. The actual value of the primary key does not affect performance or anything, it only has aesthetic value (if you ever reach the 2 … Read more
By default, Rails doesn’t add subfolders of the models directory to the autoload path. Which is why it can only find namespaced models — the namespace illuminates the subdirectory to look in. To add all subfolders of app/models to the autoload path, add the following to config/application.rb: config.autoload_paths += Dir[Rails.root.join(“app”, “models”, “{*/}”)] Or, if you … Read more
First of all, inheritance has not a natural translation to relational database architecture (ok, I know, Oracle Type Objects and some other RDBMS support inheritance but django don’t take advantage of this functionality) At this point, notice than django generates new tables to subclasses and write lots of left joins to retrieve data from this … Read more