Strange anomaly discovered in Backbone Forms

ISSUE:

I developed a custom backbone editor, but when trying to initialize it with Backbone Forms, I encountered an issue where it couldn't find the schema for my editor. Upon investigation, I discovered that Backbone was looking for the schema in the Form.editors array within the backbone-forms.js file. How can I properly register the schema for my custom editor?

CONTEXT:

In my implementation of Backbone Forms, the initialization process involves defining fields using the following structure:

backbone-forms.js

var Form = Backbone.View.extend({

  // Initialization
  initialize: function(options) {
    //.....
    // Checking and including fields (default is all)
    var selectedFields = this.selectedFields = options.fields || _.keys(schema);
    _.each(selectedFields, function(key) {
      var fieldSchema = schema[key];
      fields[key] = this.createField(key, fieldSchema); // <==== This is where issues arise
    }, this);
  },
  //....
}, {
  //....
  editors: {} // <===== QUESTION: How do I add my custom editor to this array???
});

Challenge: The problem arises when Backbone attempts to create a new Form and calls the createSchema method which looks like:

createSchema: function(schema) {
    //........

    // ISSUE: Form.editors[schema.type] is undefined
    schema.type = (_.isString(schema.type)) ? Form.editors[schema.type] : schema.type;

    return schema;
}

As a result, Form.editors[schema.type] is undefined, preventing me from successfully creating or rendering my custom editor.

Solution: Where and how can I register my custom editor within the Form.editors array?

Answer №1

If you want to access the specialized editor directly from the schema, you can reference the function itself instead of using a string:

var SpecialEditor = Backbone.Form.editors.Base.extend({});

var form = new Backbone.Form({
  schema: {
    specialField: { type: SpecialEditor }
  }
});

Alternatively, as you discovered, you have the option to include the editor in `Backbone.Form.editors` for easy access using the string shortcut.

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