Class: ActiveRecord::Associations::SpatialAssociationScope

Inherits:
AssociationScope
  • Object
show all
Defined in:
lib/activerecord-spatial/associations/active_record.rb

Overview

:nodoc:

Constant Summary collapse

INSTANCE = 
create

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.get_bind_values(owner, chain) ⇒ Object 



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# File 'lib/activerecord-spatial/associations/active_record.rb', line 13

def get_bind_values(owner, chain)
  binds = []
  last_reflection = chain.last

  if last_reflection.type
    binds << owner.class.polymorphic_name
  end

  chain.each_cons(2).each do |reflection, next_reflection|
    if reflection.type
      binds << next_reflection.klass.polymorphic_name
    end
  end
  binds
end

.scope(association) ⇒ Object 



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# File 'lib/activerecord-spatial/associations/active_record.rb', line 9

def scope(association)
  ActiveRecord::Associations::SpatialAssociationScope::INSTANCE.scope(association)
end

Instance Method Details

#last_chain_scope(scope, reflection, owner) ⇒ Object 



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# File 'lib/activerecord-spatial/associations/active_record.rb', line 30

def last_chain_scope(scope, reflection, owner)
  geom_options = {
    class: reflection.klass
  }

  if reflection.geom.is_a?(Hash)
    geom_options[:value] = owner[reflection.geom[:name]]
    geom_options.merge!(reflection.geom)
  else
    geom_options[:value] = owner[reflection.geom]
    geom_options[:name] = reflection.geom
  end

  table = reflection.aliased_table
  scope = scope.send("st_#{reflection.relationship}", geom_options, reflection.scope_options)

  if reflection.type
    polymorphic_type = transform_value(owner.class.polymorphic_name)
    scope = apply_scope(scope, table, reflection.type, polymorphic_type)
  end

  scope
end