Does MVVM sound like what you are getting at: http://stonefishy.github.io/blog/2015/02/06/understading-mvc-mvp-and-mvvm-design-patterns/ ?
On Sat, Feb 2, 2019 at 1:14 PM Christopher Tilley <ctille...@gmail.com> wrote: > I'd like to revisit a topic from several years ago about the behavior of > deleting/updating associated attributes when updating a has_many or > has_many :through relationship. There needs to be an option to replace the > contents for the associated record with the params hash being sent to the > server. It's not always feasible to set the _destroy attribute, and > doesn't play nice with how frontend frameworks work when using Rails in API > mode. > > The way newer front end frameworks handle one-to-many and many-to-many > forms is as follows. Angular 2+ allows you to create dynamic form inputs > through the use of FormArray[]. When you add related form elements to a > form, FormGroup items are pushed to the FormArray. When you edit a record, > then remove an item, the FormGroup is removed from the array, and when > submitted to the server through a PUT or PATCH request, the deleted records > are not included in the hash. The HTTP request is an exact copy of what > the data should look like in the database. > > Of course it's always possible to munge the request on the frontend or > backend, but it would be nice if the front end could behave as necessary > and Rails have the option to replace the entire record. I believe that > it's not the responsibility of the frontend to manipulate the behavior. > Following is a discussion from 2009 that explains with a little more in > depth of the issue, but keep in mind, Rails was being used in entirely > different ways back then. > > > https://groups.google.com/forum/?fromgroups#!searchin/rubyonrails-core/_destroy%7Csort:date/rubyonrails-core/A8icq5pTb3o/qdYjYr8NHsoJ > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Core" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rubyonrails-core+unsubscr...@googlegroups.com. > To post to this group, send email to rubyonrails-core@googlegroups.com. > Visit this group at https://groups.google.com/group/rubyonrails-core. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-core+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-core@googlegroups.com. Visit this group at https://groups.google.com/group/rubyonrails-core. For more options, visit https://groups.google.com/d/optout.
