Class: Datagrid::Filters::FilterEval

Inherits:
Object
  • Object
show all
Defined in:
lib/datagrid/filters/filter_eval.rb

Overview

ActiveRecord is a little brain fuck. We can not call instance_eval on ActiveRecord::Relation class because it will automatically convert it to an array because #instance_eval is not included in the method list that do not cause force result loading That is why we need thi helper class

Instance Method Summary collapse

Constructor Details

#initialize(filter, scope, value) ⇒ FilterEval

Returns a new instance of FilterEval.



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# File 'lib/datagrid/filters/filter_eval.rb', line 8

def initialize(filter, scope, value)
  @filter = filter
  @scope = scope
  @value = value
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &blk) ⇒ Object 



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# File 'lib/datagrid/filters/filter_eval.rb', line 18

def method_missing(meth, *args, &blk)
  if @scope.respond_to?(meth)
    @scope.send(meth, *args, &blk)
  else
    super(meth, *args, &blk)
  end
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/datagrid/filters/filter_eval.rb', line 14

def run
  instance_exec @value, &(@filter.block)
end