Class: ActiveFilter::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/active_filter/base.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data, scope = nil) ⇒ Base

Returns a new instance of Base.



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# File 'lib/active_filter/base.rb', line 8

def initialize(data, scope=nil)
  @data = data
  @scope = scope

  @fields = []
  self.class._model.columns.each do |column|
    if self.class._field_names.include?(column.name) ||
      self.class._field_names.include?(column.name.to_sym)
      @fields << _create_field_from_column(column)
    end
  end
end

Instance Attribute Details

#fields ⇒ Object (readonly)

Returns the value of attribute fields.



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# File 'lib/active_filter/base.rb', line 6

def fields
  @fields
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/active_filter/base.rb', line 93

def each(&block)
  scope = self.to_scope
  unless block_given?
    return scope.each
  end

  scope.each do |obj|
    block.call(obj)
  end
  self
end

#model ⇒ Object 



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# File 'lib/active_filter/base.rb', line 89

def model
  self.class._model
end

#to_scope ⇒ Object 



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# File 'lib/active_filter/base.rb', line 105

def to_scope
  scope = _scoped
  matched = false

  @fields.each do |field|
    # フィールド名でフィルタする
    name = field.name
    if @data.include?(name)
      converted_value = field.convert_value(@data[name])
      scope = field.filter(scope, converted_value, "exact")
      matched = true
    elsif @data.include?(name.to_sym)
      converted_value = field.convert_value(@data[name.to_sym])
      scope = field.filter(scope, converted_value, "exact")
      matched = true
    end

    # lookup_type でフィルタする
    lookup_types = [field.lookup_type].flatten
    lookup_types.each do |lookup_type|
      lookup = "#{name}__#{lookup_type}"
      if @data.include?(lookup)
        converted_value = field.convert_value(@data[lookup])
        scope = field.filter(scope, converted_value, lookup_type)
        matched = true
      elsif @data.include?(lookup.to_sym)
        converted_value = field.convert_value(@data[lookup.to_sym])
        scope = field.filter(scope, converted_value, lookup_type)
        matched = true
      end
    end
  end

  # ユーザーの入力がフィルタにかからなかった場合は
  # 該当無しにする
  unless matched
    scope = scope.where("1 = 2")
  end

  scope
end