Class: RailsAdmin::AbstractModel

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_admin/abstract_model.rb

Defined Under Namespace

Classes: StatementBuilder

Constant Summary collapse

@@polymorphic_parents = 
{}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model_or_model_name) ⇒ AbstractModel

Returns a new instance of AbstractModel.



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# File 'lib/rails_admin/abstract_model.rb', line 46

def initialize(model_or_model_name)
  @model_name = model_or_model_name.to_s
  ancestors = model.ancestors.collect(&:to_s)
  if ancestors.include?('ActiveRecord::Base') && !model.abstract_class? && model.table_exists?
    initialize_active_record
  elsif ancestors.include?('Mongoid::Document')
    initialize_mongoid
  end
end

Instance Attribute Details

#adapter ⇒ Object (readonly)

Returns the value of attribute adapter.



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# File 'lib/rails_admin/abstract_model.rb', line 6

def adapter
  @adapter
end

#model_name ⇒ Object (readonly)

Returns the value of attribute model_name.



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# File 'lib/rails_admin/abstract_model.rb', line 6

def model_name
  @model_name
end

Class Method Details

.all(adapter = nil) ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 13

def all(adapter = nil)
  @@all ||= Config.models_pool.collect { |m| new(m) }.compact
  adapter ? @@all.select { |m| m.adapter == adapter } : @@all
end

.new(m) ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 19

def new(m)
  m = m.constantize unless m.is_a?(Class)
  (am = old_new(m)).model && am.adapter ? am : nil
rescue LoadError, NameError
  puts "[RailsAdmin] Could not load model #{m}, assuming model is non existing. (#{$ERROR_INFO})" unless Rails.env.test?
  nil
end

.old_new ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 18

alias_method :old_new, :new

.polymorphic_parents(adapter, model_name, name) ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 29

def polymorphic_parents(adapter, model_name, name)
  @@polymorphic_parents[adapter.to_sym] ||= {}.tap do |hash|
    all(adapter).each do |am|
      am.associations.select(&:as).each do |association|
        (hash[[association.klass.to_s.underscore, association.as].join('_').to_sym] ||= []) << am.model
      end
    end
  end
  @@polymorphic_parents[adapter.to_sym][[model_name.to_s.underscore, name].join('_').to_sym]
end

.reset ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 9

def reset
  @@all = nil
end

.reset_polymorphic_parents ⇒ Object

For testing



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# File 'lib/rails_admin/abstract_model.rb', line 41

def reset_polymorphic_parents
  @@polymorphic_parents = {}
end

Instance Method Details

#config ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 65

def config
  Config.model self
end

#each_associated_children(object) ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 85

def each_associated_children(object)
  associations.each do |association|
    case association.type
    when :has_one
      if child = object.send(association.name)
        yield(association, [child])
      end
    when :has_many
      children = object.send(association.name)
      yield(association, Array.new(children))
    end
  end
end

#model ⇒ Object

do not store a reference to the model, does not play well with ActiveReload/Rails3.2



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# File 'lib/rails_admin/abstract_model.rb', line 57

def model
  @model_name.constantize
end

#param_key ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 73

def param_key
  @model_name.split('::').collect(&:underscore).join('_')
end

#pretty_name ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 77

def pretty_name
  model.model_name.human
end

#to_param ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 69

def to_param
  @model_name.split('::').collect(&:underscore).join('~')
end

#to_s ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 61

def to_s
  model.to_s
end

#where(conditions) ⇒ Object 



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# File 'lib/rails_admin/abstract_model.rb', line 81

def where(conditions)
  model.where(conditions)
end