Class: PushType::RelationField

Inherits:
FieldType show all
Defined in:
app/fields/push_type/relation_field.rb

Direct Known Subclasses

AssetField

Instance Attribute Summary

Attributes inherited from FieldType

#model, #name

Instance Method Summary collapse

Methods inherited from FieldType

#css_class, #field_options, #form_helper, #json_value, #kind, #multiple?, on_class, on_instance, options, #primitive, #template, #value

Constructor Details

#initialize(*args) ⇒ RelationField

Returns a new instance of RelationField.

Raises:

  • (ArgumentError) 


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# File 'app/fields/push_type/relation_field.rb', line 6

def initialize(*args)
  super
  raise ArgumentError, "Relation field names must end with suffix `_id` or `_ids`." unless relation_name
end

Instance Method Details

#choices ⇒ Object 



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# File 'app/fields/push_type/relation_field.rb', line 23

def choices
  if relation_items.is_a? Hash
    flatten_tree(relation_items)
  else
    relation_items.map { |item| item_hash(item) }
  end
end

#html_options ⇒ Object 



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# File 'app/fields/push_type/relation_field.rb', line 19

def html_options
  super.merge(multiple: multiple?)
end

#json_primitive ⇒ Object 



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# File 'app/fields/push_type/relation_field.rb', line 11

def json_primitive
   multiple? ? :array : super 
end

#label ⇒ Object 



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# File 'app/fields/push_type/relation_field.rb', line 15

def label
  super || relation_name.humanize
end

#relation_class ⇒ Object 



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# File 'app/fields/push_type/relation_field.rb', line 35

def relation_class
  @relation_class ||= (@opts[:to] || relation_name.singularize).to_s.classify.constantize
end

#relation_items ⇒ Object 



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# File 'app/fields/push_type/relation_field.rb', line 39

def relation_items
  @relation_items ||= begin
    if @opts[:scope].respond_to? :call
      relation_class.instance_exec(&@opts[:scope])
    else
      relation_class.all
    end
  end
end

#relation_name ⇒ Object 



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# File 'app/fields/push_type/relation_field.rb', line 31

def relation_name
  @relation_name ||= (rel = name.to_s.gsub!(/_ids?$/, '')) && (rel && multiple? ? rel.pluralize : rel)
end