Module: MethodOrProcHelper

Included in:
ActiveAdmin::ViewHelpers
Defined in:
lib/active_admin/view_helpers/method_or_proc_helper.rb

Instance Method Summary collapse

Instance Method Details

#call_method_or_proc_on(obj, symbol_or_proc, options = {}) ⇒ Object

Many times throughout the views we want to either call a method on an object or instance_exec a proc passing in the object as the first parameter. This method takes care of this functionality.

call_method_or_proc_on(@my_obj, :size) same as @my_obj.size

OR

proc = Proc.new{|s| s.size }
call_method_or_proc_on(@my_obj, proc)



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# File 'lib/active_admin/view_helpers/method_or_proc_helper.rb', line 12

def call_method_or_proc_on(obj, symbol_or_proc, options = {})
  exec = options[:exec].nil? ? true : options[:exec]
  case symbol_or_proc
  when Symbol, String
    obj.send(symbol_or_proc.to_sym)
  when Proc
    if exec
      instance_exec(obj, &symbol_or_proc)
    else
      symbol_or_proc.call(obj)
    end
  end
end

#render_or_call_method_or_proc_on(obj, string_symbol_or_proc, options = {}) ⇒ Object

Many configuration options (Ex: site_title, title_image) could either be static (String), methods (Symbol) or procs (Proc). This helper takes care of returning the content when String or call call_method_or_proc_on when Symbol or Proc.



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# File 'lib/active_admin/view_helpers/method_or_proc_helper.rb', line 30

def render_or_call_method_or_proc_on(obj, string_symbol_or_proc, options = {})
  case string_symbol_or_proc
  when Symbol, Proc
    call_method_or_proc_on(obj, string_symbol_or_proc, options)
  when String
    string_symbol_or_proc
  end
end