Module: FlexiModel::Filter::ClassMethods

Defined in:
lib/flexi_model/filter.rb

Instance Method Summary collapse

Instance Method Details

#_define_filter_method(name) ⇒ Object 



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# File 'lib/flexi_model/filter.rb', line 42

def _define_filter_method(name)
  self.class_eval <<-CODE, __FILE__, __LINE__ + 1
    def self.#{name.to_s}(args = {})
      _filter_params = self.flexi_filters[:#{name.to_s}]
      _values = _filter_params[:param_keys].map{ |k| args[k] }

      _inst = args[:instance] || self
      _block = _filter_params[:proc]
      _inst.instance_exec(*_values, &_block)
    end

    def #{name.to_s}(args = {})
      args[:instance] = self
      self.class.#{name.to_s}(args)
    end
  CODE
end

#flexi_filter(name, options = {}, &proc) ⇒ Object

Define filter for scoping data

name - Set filter name
options - Hash of options
  field_types - Define renderable field types
  field_values - Define initial field values procs
proc - Set lambda for the specific filter

Example -

class Category
  include FlexiModel
  filter :by_name, {}, lambda { |param1, param2| ... }
end



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# File 'lib/flexi_model/filter.rb', line 28

def flexi_filter(name, options = {}, &proc)
  raise "No lambda is defined for scope :#{name}" if proc.nil?

  accepted_params = proc.parameters.map(&:last)

  self.flexi_filters[name.to_sym] = {
      param_keys: accepted_params,
      options: options,
      proc: proc
  }

  _define_filter_method(name)
end