Module: ActiveAdmin::Filters::FormtasticAddons

Included in:
FormBuilder, Inputs::Filters::Base
Defined in:
lib/active_admin/filters/formtastic_addons.rb

Instance Method Summary collapse

Instance Method Details

#columnObject


27
28
29
# File 'lib/active_admin/filters/formtastic_addons.rb', line 27

def column
  column_for method
end

#column_for(method) ⇒ Object


23
24
25
# File 'lib/active_admin/filters/formtastic_addons.rb', line 23

def column_for(method)
  klass.columns_hash[method.to_s] if klass.respond_to? :columns_hash
end

#has_predicate?Boolean

If the given method has a predicate (like _eq or _lteq), it's pretty likely we're dealing with a valid search method.

Returns:

  • (Boolean)

63
64
65
# File 'lib/active_admin/filters/formtastic_addons.rb', line 63

def has_predicate?
  !!Ransack::Predicate.detect_from_string(method.to_s)
end

#humanized_method_nameObject

The below are Formtastic method overrides that jump inside of the Ransack search object to get at the object being searched upon.


11
12
13
14
15
16
17
# File 'lib/active_admin/filters/formtastic_addons.rb', line 11

def humanized_method_name
  if klass.respond_to?(:human_attribute_name)
    klass.human_attribute_name(method)
  else
    method.to_s.public_send(builder.label_str_method)
  end
end

#klassObject

The resource class, unwrapped from Ransack


36
37
38
# File 'lib/active_admin/filters/formtastic_addons.rb', line 36

def klass
  @object.object.klass
end

#polymorphic_foreign_type?(method) ⇒ Boolean

Returns:

  • (Boolean)

40
41
42
43
# File 'lib/active_admin/filters/formtastic_addons.rb', line 40

def polymorphic_foreign_type?(method)
  klass.reflect_on_all_associations.select { |r| r.macro == :belongs_to && r.options[:polymorphic] }
    .map(&:foreign_type).include? method.to_s
end

#reflection_for(method) ⇒ Object


19
20
21
# File 'lib/active_admin/filters/formtastic_addons.rb', line 19

def reflection_for(method)
  klass.reflect_on_association(method) if klass.respond_to? :reflect_on_association
end

#scope?Boolean

Ransack supports exposing selected scopes on your model for advanced searches.

Returns:

  • (Boolean)

68
69
70
71
# File 'lib/active_admin/filters/formtastic_addons.rb', line 68

def scope?
  context = Ransack::Context.for klass
  context.respond_to?(:ransackable_scope?) && context.ransackable_scope?(method.to_s, klass)
end

#searchable_has_many_through?Boolean

These help figure out whether the given method or association will be recognized by Ransack.

Returns:

  • (Boolean)

49
50
51
52
53
54
55
# File 'lib/active_admin/filters/formtastic_addons.rb', line 49

def searchable_has_many_through?
  if reflection && reflection.options[:through]
    reflection.through_reflection.klass.ransackable_attributes.include? reflection.foreign_key
  else
    false
  end
end

#seems_searchable?Boolean

Returns:

  • (Boolean)

57
58
59
# File 'lib/active_admin/filters/formtastic_addons.rb', line 57

def seems_searchable?
  column_for(method).nil? && (has_predicate? || scope?)
end