Class: Avo::Fields::BelongsToField

Inherits:
BaseField
  • Object
show all
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: AutocompleteComponent, EditComponent, IndexComponent, ShowComponent

Instance Attribute Summary collapse

Attributes inherited from BaseField

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

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 inherited from BaseField

#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, #view_component_name, #visible?, #visible_in_reflection?

Methods included from FieldExtensions::HasFieldName

#field_name, #get_field_name

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_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/avo/fields/belongs_to_field.rb', line 70

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]
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 66

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 67

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 63

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 68

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 64

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 61

def target
  @target
end

#types ⇒ Object (readonly)

for Polymorphic associations



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

def types
  @types
end

Instance Method Details

#database_id ⇒ Object 



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

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 132

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 107

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

#field_value ⇒ Object

The value



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

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 197

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

  if polymorphic_as.present?
    model.send("#{polymorphic_as}_type=", params["#{polymorphic_as}_type"])

    # If the type is blank, reset the id too.
    if params["#{polymorphic_as}_type"].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 158

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/avo/fields/belongs_to_field.rb', line 245

def get_model
  return @model if @model.present?

  @resource.model
rescue
  nil
end

#id_input_foreign_key ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 144

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 152

def is_polymorphic?
  polymorphic_as.present?
rescue
  false
end

#label ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 185

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

#name ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 253

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 113

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 175

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 168

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 181

def relation_model_class
  @resource.model_class
end

#searchable ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 85

def searchable
  @searchable && ::Avo::App.license.has_with_trial(:searchable_associations)
end

#target_resource ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 225

def target_resource
  if is_polymorphic?
    if value.present?
      return App.get_resource_by_model_name(value.class)
    else
      return nil
    end
  end

  reflection_key = polymorphic_as || id

  if @model._reflections[reflection_key.to_s].klass.present?
    App.get_resource_by_model_name @model._reflections[reflection_key.to_s].klass.to_s
  elsif @model._reflections[reflection_key.to_s].options[:class_name].present?
    App.get_resource_by_model_name @model._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 189

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 138

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

#value ⇒ Object 



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# File 'lib/avo/fields/belongs_to_field.rb', line 89

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 117

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

  query = Avo::Services::AuthorizationService.apply_policy(user, resource.class.query_scope)

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

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