Class: ActiveAdmin::Scope

Inherits:
Object
  • Object
show all
Defined in:
lib/active_admin/scope.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, method = nil, options = {}, &block) ⇒ Scope

Create a Scope

Examples:

Scope.new(:published)
# => Scope with name 'Published' and scope method :published

Scope.new('Published', :public)
# => Scope with name 'Published' and scope method :public

Scope.new 'Published', :public, :if => proc { current_admin_user.can? :manage, resource_class } do |articles|
  articles.where :published => true
end
# => Scope with name 'Published' and scope method :public, optionally displaying the scope per the :if block

Scope.new('Published') { |articles| articles.where(:published => true) }
# => Scope with name 'Published' using a block to scope

Scope.new ->{Date.today.strftime '%A'}, :published_today
# => Scope with dynamic title using the :published_today scope method



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# File 'lib/active_admin/scope.rb', line 27

def initialize(name, method = nil, options = {}, &block)
  @name, @scope_method = name, method.try(:to_sym)

  if name.is_a? Proc
    raise "A string/symbol is required as the second argument if your label is a proc." unless method
    @id = method.to_s.gsub(' ', '').underscore
  else
    @scope_method ||= name.to_sym
    @id = name.to_s.gsub(' ', '').underscore
  end

  @scope_method               = nil        if @scope_method == :all
  @scope_method, @scope_block = nil, block if block_given?

  @show_count       = options[:show_count].nil? ? true : options[:show_count]
  @display_if_block = options[:if]      || proc{ true }
  @default_block    = options[:default] || proc{ false }

end

Instance Attribute Details

#default_block ⇒ Object (readonly)

Returns the value of attribute default_block.



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# File 'lib/active_admin/scope.rb', line 4

def default_block
  @default_block
end

#display_if_block ⇒ Object (readonly)

Returns the value of attribute display_if_block.



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# File 'lib/active_admin/scope.rb', line 4

def display_if_block
  @display_if_block
end

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/active_admin/scope.rb', line 4

def id
  @id
end

#scope_block ⇒ Object (readonly)

Returns the value of attribute scope_block.



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# File 'lib/active_admin/scope.rb', line 4

def scope_block
  @scope_block
end

#scope_method ⇒ Object (readonly)

Returns the value of attribute scope_method.



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# File 'lib/active_admin/scope.rb', line 4

def scope_method
  @scope_method
end

#show_count ⇒ Object (readonly)

Returns the value of attribute show_count.



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# File 'lib/active_admin/scope.rb', line 4

def show_count
  @show_count
end

Instance Method Details

#name ⇒ Object 



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# File 'lib/active_admin/scope.rb', line 47

def name
  case @name
    when Proc   then @name.call.to_s
    when String then @name
    when Symbol then @name.to_s.titleize
    else             @name.to_s
  end
end