Class: Avo::Fields::BelongsToField

Inherits:
BaseField
  • Object
show all
Includes:
Concerns::IsSearchable, Concerns::UseResource
Defined in:
lib/avo/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: EditComponent, IndexComponent, ShowComponent

Instance Attribute Summary collapse

Attributes inherited from BaseField

#action, #as_avatar, #autocomplete, #block, #computable, #computed, #computed_value, #default, #for_presentation_only, #format_using, #help, #id, #null_values, #nullable, #panel_name, #readonly, #record, #required, #sortable, #stacked, #user

Attributes included from Concerns::IsDisabled

#disabled

Attributes included from Concerns::HasHTMLAttributes

#html

Attributes included from Concerns::VisibleInDifferentViews

#show_on_edit, #show_on_index, #show_on_new, #show_on_preview, #show_on_show

Attributes included from Concerns::IsVisible

#visible

Attributes included from Concerns::IsResourceItem

#resource, #view

Instance Method Summary collapse

Methods included from Concerns::UseResource

#use_resource

Methods included from Concerns::IsSearchable

#is_searchable?

Methods inherited from BaseField

#assign_value, #custom?, #custom_name?, #default_name, #execute_block, #has_own_panel?, #hidden_in_reflection?, #options_for_filter, #placeholder, #plural_name, #record_errors, #resolve_attribute, #table_header_label, #translated_name, #translated_plural_name, #translation_key, #type, #updatable, #visible_in_reflection?

Methods included from Concerns::UseViewComponents

#component_for_view, #view_component_name, #view_component_namespace

Methods included from Concerns::IsRequired

#is_required?

Methods included from Concerns::IsDisabled

#is_disabled?

Methods included from Concerns::IsReadonly

#is_readonly?

Methods included from Concerns::HasHTMLAttributes

#get_html

Methods included from Concerns::HasDefault

#computed_default_value

Methods included from Concerns::HasHelpers

#helpers

Methods included from Concerns::VisibleInDifferentViews

#except_on, #hide_on, #initialize_views, #only_on, #post_initialize, #show_on, #show_on_create, #show_on_update, #visible_in_view?

Methods included from Concerns::IsVisible

#visible?

Methods included from Concerns::HasItemType

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

Methods included from Concerns::IsResourceItem

#hydrate, #visible?

Constructor Details

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

Returns a new instance of BelongsToField.



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# File 'lib/avo/fields/belongs_to_field.rb', line 72

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

  super(id, **args, &block)

  @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)

Returns the value of attribute allow_via_detaching.



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# File 'lib/avo/fields/belongs_to_field.rb', line 68

def allow_via_detaching
  @allow_via_detaching
end

#attach_scope ⇒ Object (readonly)

Returns the value of attribute attach_scope.



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# File 'lib/avo/fields/belongs_to_field.rb', line 69

def attach_scope
  @attach_scope
end

#polymorphic_as ⇒ Object (readonly)

Returns the value of attribute polymorphic_as.



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# File 'lib/avo/fields/belongs_to_field.rb', line 65

def polymorphic_as
  @polymorphic_as
end

#polymorphic_help ⇒ Object (readonly)

Returns the value of attribute polymorphic_help.



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# File 'lib/avo/fields/belongs_to_field.rb', line 70

def polymorphic_help
  @polymorphic_help
end

#relation_method ⇒ Object (readonly)

Returns the value of attribute relation_method.



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

def relation_method
  @relation_method
end

#target ⇒ Object

Returns the value of attribute target.



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# File 'lib/avo/fields/belongs_to_field.rb', line 63

def target
  @target
end

#types ⇒ Object (readonly)

for Polymorphic associations



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# File 'lib/avo/fields/belongs_to_field.rb', line 67

def types
  @types
end

Instance Method Details

#database_id ⇒ Object 



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

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
  id
end

#database_value ⇒ Object 



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

def database_value
  target_resource.id
rescue
  nil
end

#field_label ⇒ Object

What the user sees in the text field



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

def field_label
  label
end

#field_value ⇒ Object

The value



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# File 'lib/avo/fields/belongs_to_field.rb', line 99

def field_value
  value.send(database_value)
rescue
  nil
end

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



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# File 'lib/avo/fields/belongs_to_field.rb', line 195

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/avo/fields/belongs_to_field.rb', line 155

def foreign_key
  return polymorphic_as if polymorphic_as.present?

  if @record.present?
    get_model_class(@record).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/avo/fields/belongs_to_field.rb', line 253

def get_model
  return @record if @record.present?

  @resource.record
rescue
  nil
end

#id_input_foreign_key ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 141

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/avo/fields/belongs_to_field.rb', line 149

def is_polymorphic?
  polymorphic_as.present?
rescue
  false
end

#label ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 182

def label
  return if target_resource.blank?
  target_resource.new(record: value)&.record_title
end

#name ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 261

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

  super
end

#options ⇒ Object 



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

def options
  values_for_type
end

#reflection ⇒ Object

Get the model reflection instance



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

def reflection
  reflection_for_key(id)
rescue
  nil
end

#reflection_for_key(key) ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 165

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

#relation_model_class ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 178

def relation_model_class
  @resource.model_class
end

#target_resource ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 231

def target_resource
  return use_resource if use_resource.present?

  if is_polymorphic?
    if value.present?
      return Avo.resource_manager.get_resource_by_model_class(value.class)
    else
      return nil
    end
  end

  reflection_key = polymorphic_as || id

  if @record._reflections[reflection_key.to_s].klass.present?
    Avo.resource_manager.get_resource_by_model_class @record._reflections[reflection_key.to_s].klass.to_s
  elsif @record._reflections[reflection_key.to_s].options[:class_name].present?
    Avo.resource_manager.get_resource_by_model_class @record._reflections[reflection_key.to_s].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/avo/fields/belongs_to_field.rb', line 187

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

  foreign_key.to_sym
end

#type_input_foreign_key ⇒ Object 



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

def type_input_foreign_key
  if is_polymorphic?
    "#{foreign_key}_type"
  end
end

#valid_polymorphic_class(possible_class) ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 216

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/avo/fields/belongs_to_field.rb', line 88

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/avo/fields/belongs_to_field.rb', line 114

def values_for_type(model = nil)
  resource = target_resource
  resource = Avo.resource_manager.get_resource_by_model_class model if model.present?

  query = resource.query_scope

  if attach_scope.present?
    query = Avo::ExecutionContext.new(target: attach_scope, query: query, parent: get_model).handle
  end

  query.all.map do |record|
    [resource.new(record: record).record_title, record.id]
  end
end