Class: ActiveScaffold::DataStructures::NestedInfoAssociation
- Inherits:
-
NestedInfo
show all
- Defined in:
- lib/active_scaffold/data_structures/nested_info.rb
Instance Attribute Summary
Attributes inherited from NestedInfo
#association, #child_association, #constrained_fields, #param_name, #parent_id, #parent_model, #parent_scaffold, #scope
Instance Method Summary
collapse
Methods inherited from NestedInfo
#belongs_to?, get, #habtm?, #has_many?, #has_one?, #new_instance?, #plural_association?, #readonly?, #singular_association?
Constructor Details
Returns a new instance of NestedInfoAssociation.
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 80
def initialize(model, params)
super
column = parent_scaffold.active_scaffold_config.columns[params[:association].to_sym]
@param_name = column.model.name.foreign_key.to_sym
@parent_id = params[@param_name]
@association = column&.association
@child_association = association.reverse_association(model) if association
setup_constrained_fields
end
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Instance Method Details
#create_through_singular? ⇒ Boolean
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 114
def create_through_singular?
association.through_singular? && source_reflection.reverse
end
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#create_with_parent? ⇒ Boolean
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 118
def create_with_parent?
if has_many? && !association.through?
false
elsif child_association || create_through_singular?
true
end
end
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#default_sorting(chain) ⇒ Object
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 146
def default_sorting(chain)
return @default_sorting if defined? @default_sorting
return unless association.scope.is_a?(Proc) && chain.respond_to?(:values) && chain.values[:order]
@default_sorting = chain.values[:order]
@default_sorting = @default_sorting.map(&:to_sql) if @default_sorting[0].is_a? Arel::Nodes::Node
@default_sorting = @default_sorting.join(', ')
end
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#match_model?(model) ⇒ Boolean
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 134
def match_model?(model)
if association.polymorphic?
child_association&.inverse_klass == model
else
association.klass == model
end
end
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#readonly_through_association?(columns) ⇒ Boolean
A through association with has_one or has_many as source association create cannot be called in nested through associations, and not-nested through associations, unless:
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is through singular and source association has reverse, e.g.: Employee belongs to vendor, Vendor has many rates, Rate belongs to vendor, Employee has many rates through vendor Rates association through singular association vendor, source association in Vendor (rates) has reverse (vendor in Rate) AS will assign the vendor of the employee to the new Rate
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source association is singular, e.g.: Customer has many networks, Network has one (or belongs to) firewall, Customer has many firewalls through networks
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create columns include through association of reverse association, e.g.: Vendor has many employees, Employee has many rates, Vendor has many rates through employees, Rate has one vendor through employee RatesController has employee in create action columns (reverse is vendor, and through association employee is in create form).
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 103
def readonly_through_association?(columns)
return false unless through_association?
return true if association.through_reflection.options[:through] return true if association.source_reflection.options[:through] return false if create_through_singular? return false unless association.source_reflection.collection?
!child_association || !columns.include?(child_association.through_reflection.name)
end
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#sorted?(chain) ⇒ Boolean
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 142
def sorted?(chain)
default_sorting(chain).present?
end
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#through_association? ⇒ Boolean
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 130
def through_association?
association.through?
end
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#to_params ⇒ Object
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# File 'lib/active_scaffold/data_structures/nested_info.rb', line 154
def to_params
super.merge(:association => @association.name, @param_name => parent_id)
end
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