• How to use translation.

Need example php code to generate for cases like this:

<input " type="text" name="LocationForm[coords][lng]">

Approximately docs structure:

• The principle of form field configuration:
  • widget config
  • global widget theme config (https://github.com/yiisoft/widget/blob/master/docs/guide/en/themes.md)
  • form field theme
  • passed to widget() config
• Common form fields properties
• Built-in fields
• Input data (principle input data object, built-in PureInputData)
• Form field themes (ThemeContainer configuration, ThemePath usage, built-in themes)
• Creating own form fields
• PureField helper and PureFieldFactory (don't forget about inheritance)