Module: VanillaNested::ViewHelpers

Defined in:
lib/vanilla_nested/view_helpers.rb

Instance Method Summary collapse

Instance Method Details

Returns link tag.

Parameters:

  • form (FormBuild) —

    builder on a “form_for” block

  • association (Symbol) —

    name of the association

  • container_selector (String) —

    selector of the element to inser the fields

  • link_text (String, nil) (defaults to: nil) —

    text to use for the link tag

  • link_classes (String) (defaults to: '') —

    space separated classes for the link tag

  • insert_method (:append, :prepend) (defaults to: :append) —

    tells javascript if the new fields should be appended or prepended to the container

  • partial_form_variable (String, Symbol) (defaults to: :form) —

    name of the variable that represents the form builder inside the fields partial

  • link_content (Block) —

    block of code for the link content

Returns:

  • (String) —

    link tag



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# File 'lib/vanilla_nested/view_helpers.rb', line 14

def link_to_add_nested(form, association, container_selector, link_text: nil, link_classes: '', insert_method: :append, partial: nil, partial_form_variable: :form, &link_content)
  association_class = form.object.class.reflections[association.to_s].klass
  object = association_class.new

  partial_name = partial || "#{association_class.name.underscore}_fields"

  html = capture do
    form.fields_for association, object, child_index: '_idx_placeholder_' do |ff|
      render partial: partial_name, locals: { partial_form_variable => ff }
    end
  end

  method_for_insert = i[append prepend].include?(insert_method.to_sym) ? insert_method : :append

  classes = "vanilla-nested-add #{link_classes}"
  data = {
    'container-selector': container_selector,
    'html': html,
    'method-for-insert': method_for_insert
  }

  nested_options = form.object.class.nested_attributes_options[association.to_sym]
  data['limit'] = nested_options[:limit] if nested_options[:limit]

  if block_given?
    link_to '#', class: classes, data: data, &link_content
  else
    text = link_text || "Add #{association_class.model_name}"
    link_to text, '#', class: classes, data: data
  end
end

#link_to_remove_nested(form, link_text: 'X', fields_wrapper_selector: nil, undo_link_timeout: nil, undo_link_text: 'Undo', undo_link_classes: '', link_classes: '', &link_content) ⇒ String

Returns hidden field and link tag.

Parameters:

  • form (FormBuilder) —

    builder on a “form_for” block

  • link_text (String, nil) (defaults to: 'X') —

    text for the link, defaults to ‘X’

  • fields_wrapper_selector (String) (defaults to: nil) —

    selector for the wrapper of the fields, must be an ancestor

  • undo_link_timeout (Integer) (defaults to: nil) —

    time until undo timeouts

  • undo_link_text (String) (defaults to: 'Undo') —

    text to show as “undo”

  • undo_link_classes (String) (defaults to: '') —

    space separated list of classes for the “undo” link

  • ulink_classes (String) —

    space separated list of classes for the “x” link

  • link_content (Block) —

    block of code for the link content

Returns:

  • (String) —

    hidden field and link tag



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# File 'lib/vanilla_nested/view_helpers.rb', line 55

def link_to_remove_nested(form, link_text: 'X', fields_wrapper_selector: nil, undo_link_timeout: nil, undo_link_text: 'Undo', undo_link_classes: '', link_classes: '', &link_content)
  data = {
    'fields-wrapper-selector': fields_wrapper_selector,
    'undo-timeout': undo_link_timeout,
    'undo-text': undo_link_text,
    'undo-link-classes': undo_link_classes
  }

  classes = "vanilla-nested-remove #{link_classes}"

  capture do
    concat form.hidden_field(:_destroy, value: 0)
    concat(
      if block_given?
        link_to('#', class: classes, data: data, &link_content)
      else
        link_to(link_text.html_safe, '#', class: classes, data: data)
      end
    )
  end
end