Class: Jav::Fields::BelongsToField

Inherits:
BaseField
  • Object
show all
Includes:
Concerns::UseResource
Defined in:
lib/jav/fields/belongs_to_field.rb

Overview

Requirements

  • list
  • ID
  • label
  • Type
  • foreign_key
  • foreign_key for poly type
  • foreign_key for poly id
  • is_disabled?

Defined Under Namespace

Classes: AutocompleteComponent, EditComponent, IndexComponent, ShowComponent

Instance Attribute Summary collapse

Attributes inherited from BaseField

#action, #as_avatar, #as_description, #as_label, #autocomplete, #block, #computable, #computed, #computed_value, #default, #format_using, #help, #id, #in_sidebar, #index_text_align, #model, #null_values, #nullable, #panel_name, #readonly, #required, #resource, #sortable, #stacked, #user, #view, #visible

Attributes included from Concerns::IsDisabled

#disabled

Attributes included from Concerns::HasHTMLAttributes

#html

Attributes included from FieldExtensions::VisibleInDifferentViews

#show_on_edit, #show_on_index, #show_on_new, #show_on_show

Instance Method Summary collapse

Methods included from Concerns::UseResource

#use_resource

Methods inherited from BaseField

#assign_value, #component_for_view, #custom?, #custom_name?, #default_name, #has_own_panel?, #hidden_in_reflection?, #hydrate, #model_errors, #placeholder, #plural_name, #resolve_attribute, #translation_key, #type, #updatable, #update_using, #view_component_name, #visible?, #visible_in_reflection?

Methods included from FieldExtensions::HasFieldName

#field_name, #field_name=

Methods included from Concerns::HasDefault

#computed_default_value

Methods included from Concerns::IsDisabled

#is_disabled?

Methods included from Concerns::IsReadonly

#is_readonly?

Methods included from Concerns::IsRequired

#is_required?

Methods included from Concerns::HasHTMLAttributes

#get_html

Methods included from FieldExtensions::VisibleInDifferentViews

#except_on, #hide_on, #only_on, #show_on, #show_on_create, #show_on_update, #visible_on?

Methods included from Concerns::IsResourceItem

#is_field?, #is_main_panel?, #is_panel?, #is_row?, #is_sidebar?, #is_tab?, #is_tab_group?, #is_tool?

Constructor Details

#initialize(id, **args, &block) ⇒ BelongsToField

Returns a new instance of BelongsToField.



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# File 'lib/jav/fields/belongs_to_field.rb', line 66

def initialize(id, **args, &block)
  args[:placeholder] ||= I18n.t("jav.choose_an_option")

  super

  @searchable = args[:searchable] == true
  @polymorphic_as = args[:polymorphic_as]
  @types = args[:types]
  @relation_method = id.to_s.parameterize.underscore
  @allow_via_detaching = args[:allow_via_detaching] == true
  @attach_scope = args[:attach_scope]
  @polymorphic_help = args[:polymorphic_help]
  @target = args[:target]
  @use_resource = args[:use_resource] || nil
end

Instance Attribute Details

#allow_via_detaching ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/jav/fields/belongs_to_field.rb', line 64

def allow_via_detaching
  @allow_via_detaching
end

#attach_scope ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/jav/fields/belongs_to_field.rb', line 64

def attach_scope
  @attach_scope
end

#polymorphic_as ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/jav/fields/belongs_to_field.rb', line 64

def polymorphic_as
  @polymorphic_as
end

#polymorphic_help ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/jav/fields/belongs_to_field.rb', line 64

def polymorphic_help
  @polymorphic_help
end

#relation_method ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/jav/fields/belongs_to_field.rb', line 64

def relation_method
  @relation_method
end

#searchable ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/jav/fields/belongs_to_field.rb', line 64

def searchable
  @searchable
end

#target ⇒ Object

Returns the value of attribute target.



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# File 'lib/jav/fields/belongs_to_field.rb', line 62

def target
  @target
end

#types ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/jav/fields/belongs_to_field.rb', line 64

def types
  @types
end

Instance Method Details

#database_id ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 213

def database_id
  # If the field is a polymorphic value, return the polymorphic_type as key and pre-fill the _id in fill_field.
  return "#{polymorphic_as}_type" if polymorphic_as.present?

  foreign_key
rescue StandardError
  id
end

#database_value ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 123

def database_value
  target_resource.id
rescue StandardError
  nil
end

#field_label ⇒ Object

What the user sees in the text field



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# File 'lib/jav/fields/belongs_to_field.rb', line 100

def field_label
  value.send(target_resource.class.title)
rescue StandardError
  nil
end

#field_value ⇒ Object

The value



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# File 'lib/jav/fields/belongs_to_field.rb', line 93

def field_value
  value.send(database_value)
rescue StandardError
  nil
end

#fill_field(model, key, value, params) ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 186

def fill_field(model, key, value, params)
  return model unless model.methods.include? key.to_sym

  if polymorphic_as.present?
    valid_model_class = valid_polymorphic_class params["#{polymorphic_as}_type"]

    model.send(:"#{polymorphic_as}_type=", valid_model_class)

    # If the type is blank, reset the id too.
    if valid_model_class.blank?
      model.send(:"#{polymorphic_as}_id=", nil)
    else
      model.send(:"#{polymorphic_as}_id=", params["#{polymorphic_as}_id"])
    end
  else
    model.send(:"#{key}=", value)
  end

  model
end

#foreign_key ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 149

def foreign_key
  return polymorphic_as if polymorphic_as.present?

  if @model.present?
    get_model_class(@model).reflections[@relation_method].foreign_key
  elsif @resource.present? && @resource.model_class.reflections[@relation_method].present?
    @resource.model_class.reflections[@relation_method].foreign_key
  end
end

#get_model ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 243

def get_model
  return @model if @model.present?

  @resource.model
rescue StandardError
  nil
end

#id_input_foreign_key ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 135

def id_input_foreign_key
  if is_polymorphic?
    "#{foreign_key}_id"
  else
    foreign_key
  end
end

#is_polymorphic? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jav/fields/belongs_to_field.rb', line 143

def is_polymorphic?
  polymorphic_as.present?
rescue StandardError
  false
end

#label ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 176

def label
  value.send(target_resource.class.title)
end

#name ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 251

def name
  return polymorphic_as.to_s.humanize if polymorphic_as.present? && view == :index

  super
end

#options ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 106

def options
  values_for_type
end

#reflection ⇒ Object

Get the model reflection instance



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# File 'lib/jav/fields/belongs_to_field.rb', line 166

def reflection
  reflection_for_key(id)
rescue StandardError
  nil
end

#reflection_for_key(key) ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 159

def reflection_for_key(key)
  get_model_class(get_model).reflections[key.to_s]
rescue StandardError
  nil
end

#relation_model_class ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 172

def relation_model_class
  @resource.model_class
end

#target_resource ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 222

def target_resource
  return use_resource if use_resource.present?

  if is_polymorphic?
    return App.get_resource_by_model_name(value.class) if value.present?

    return nil

  end

  reflection_key = polymorphic_as || id

  if @model.class.reflect_on_association(reflection_key).klass.present?
    App.get_resource_by_model_name @model.class.reflect_on_association(reflection_key).klass.to_s
  elsif @model.class.reflect_on_association(reflection_key).options[:class_name].present?
    App.get_resource_by_model_name @model.class.reflect_on_association(reflection_key).options[:class_name]
  else
    App.get_resource_by_name reflection_key.to_s
  end
end

#to_permitted_param ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 180

def to_permitted_param
  return [:"#{polymorphic_as}_type", :"#{polymorphic_as}_id"] if polymorphic_as.present?

  foreign_key.to_sym
end

#type_input_foreign_key ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 129

def type_input_foreign_key
  return unless is_polymorphic?

  "#{foreign_key}_type"
end

#valid_polymorphic_class(possible_class) ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 207

def valid_polymorphic_class(possible_class)
  types.find do |type|
    type.to_s == possible_class.to_s
  end
end

#value ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 82

def value
  if is_polymorphic?
    # Get the value from the pre-filled assoociation record
    super(polymorphic_as)
  else
    # Get the value from the pre-filled assoociation record
    super(relation_method)
  end
end

#values_for_type(model = nil) ⇒ Object 



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# File 'lib/jav/fields/belongs_to_field.rb', line 110

def values_for_type(model = nil)
  resource = target_resource
  resource = App.get_resource_by_model_name model if model.present?

  query = resource.class.query_scope

  query = Jav::Hosts::AssociationScopeHost.new(block: attach_scope, query: query, parent: get_model).handle if attach_scope.present?

  query.all.map do |mod|
    [mod.send(resource.class.title), mod.id]
  end
end