Module: Anoubis::HasManualOrder::LocalInstanceMethods

Defined in:
lib/anoubis.rb

Instance Method Summary collapse

Instance Method Details

#manual_order_after_destroy ⇒ Object

Recalculate positions after destroy element



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# File 'lib/anoubis.rb', line 140

def manual_order_after_destroy
  position = self.manual_order_options[:field].to_sym  # set order field for simplicity
  order_where = manual_order_get_where
  pos = self[position]
  order_where[position] = [pos..Float::INFINITY]
  self.class.where(order_where).order(position).all.each  do |element|
    element[position] = pos
    begin
      element.current_user = self.current_user
    rescue
      puts 'Cant set current_user'
    end
    element.save
    pos += 1
  end
end

#manual_order_after_save_element ⇒ Object

Recalculate position of elements after set current position



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# File 'lib/anoubis.rb', line 95

def manual_order_after_save_element
  if manual_order_changed_orders
#          puts self.id.to_s+'> manual_order_after_save_element'
    position = self.manual_order_options[:field].to_sym  # set order field for simplicity
    order_where = manual_order_get_where
    order_where[position] = self[position]
    count = 0
    self.class.where(order_where).where.not(:id => self.id).find_each do |element|
#            puts self.id.to_s+'> Increment element position: '+element.id.to_s
      element[position] = self[position]+1
      begin
        element.current_user = self.current_user
      rescue
        puts 'Cant set current_user'
      end
      element.save
      count += 1
    end
    if manual_order_changed_group
      order_where = manual_order_get_where_was
      pos = eval('self.'+position.to_s+'_was').to_i
      order_where[position] = [pos..Float::INFINITY]
      self.class.where(order_where).order(position).all.each  do |element|
        element[position] = pos
        begin
          element.current_user = self.current_user
        rescue
          puts 'Cant set current_user'
        end
        element.save
        pos += 1
      end
    end
#if count == 0
#            order_where[position] = [self[position]+2..Float::INFINITY]
#            data = self.class.where(order_where).where.not(:id => self.id).order(position).first
#            if data
#              data[position] = self[position]+1
#              data.save
#            end
#          end
  end
end

#manual_order_before_create_element ⇒ Object

Check presence of position



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# File 'lib/anoubis.rb', line 28

def manual_order_before_create_element
#        puts 'manual_order_before_create_element'
  position = self.manual_order_options[:field].to_sym  # set order field for simplicity
  if !self[position]
    data = self.class.where(manual_order_get_where).maximum(position)
    data = if data then data + 1 else 0 end
    self[position] = data
  else
    self[position] = 0 if self[position].to_i < 0 # position must be 0 or greater
    manual_order_check_order_position 0
  end
end

#manual_order_before_update_element ⇒ Object 



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# File 'lib/anoubis.rb', line 41

def manual_order_before_update_element
#        puts self.id.to_s+'> manual_order_before_update_element'
  if manual_order_changed_orders
    position = self.manual_order_options[:field].to_sym  # set order field for simplicity
    if !manual_order_changed_group
#            puts self.id.to_s+'> Group was not changed'
      was_position = eval('self.'+position.to_s+'_was')
#            puts self.id.to_s+'> Position changed: '+was_position.to_s+' -> '+self[position].to_s
      if self[position] > was_position
        order_where = manual_order_get_where
        order_where[position] = was_position.to_i
        data = self.class.where(order_where).where.not(:id => self.id).first
        if !data
#                puts self.id.to_s+'> Update attributes'
          self.update_columns position => self[position]
          order_where[position] = [was_position.to_i..self[position].to_i]
          self.class.where(order_where).where.not(:id => self.id).order(position).all.each  do |element|
#                  puts self.id.to_s+'> Element id: '+element.id.to_s+' -> '+element[position].to_s
            element[position] -= 1
            begin
              element.current_user = self.current_user
            rescue
              puts 'Cant set current_user'
            end
            element.save
          end
        end
      end

    end
    if self[self.manual_order_options[:field].to_sym] != 0
      manual_order_check_order_position self.id
    end
  end
end

#manual_order_changed_group ⇒ Object

Check if element’s position changed in current order group



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# File 'lib/anoubis.rb', line 171

def manual_order_changed_group
  changed = false
  if self.manual_order_options.key? :groups
    self.manual_order_options[:groups].each do |key|
#            puts 'self.'+key.to_s+'_changed?'
      changed = eval('self.'+key.to_s+'_changed?') if !changed
    end
  end
#        puts 'manual_order_changed_group: '+changed.to_s
  return changed
end

#manual_order_changed_orders ⇒ Object

Check if element’s position was changed (or changed order group)



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# File 'lib/anoubis.rb', line 158

def manual_order_changed_orders
  changed = eval('self.'+self.manual_order_options[:field].to_s+'_changed?')
  if self.manual_order_options.key? :groups
    self.manual_order_options[:groups].each do |key|
#            puts 'self.'+key.to_s+'_changed?'
      changed = eval('self.'+key.to_s+'_changed?') if !changed
    end
  end
#        puts 'manual_order_changed_orders: '+changed.to_s
  return changed
end

#manual_order_check_order_position(id) ⇒ Object

Check manual order position



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# File 'lib/anoubis.rb', line 78

def manual_order_check_order_position (id)
#        puts self.id.to_s+'> manual_order_check_order_position'
  position = self.manual_order_options[:field].to_sym  # set order field for simplicity
  if self[position].to_i > 0
    order_where = manual_order_get_where
    # Check if elements present for order conditions (before current element position)
    order_where[position] = [0..self[position].to_i-1]
    data = self.class.where(order_where).where.not(:id => id).maximum(position)
    if !data
      self[position] = 0 # if elements not found then position equal 0
    else
      self[position] = data+1 if self[position] != data+1 # if previous elements ends before position-1 then correct current position
    end
  end
end

#manual_order_get_where ⇒ Object 



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# File 'lib/anoubis.rb', line 183

def manual_order_get_where
  where = {}
  if self.manual_order_options.key? :groups
    self.manual_order_options[:groups].each do |key|
      where[key.to_sym] = self[key.to_sym]
    end
  end
  return where
end

#manual_order_get_where_was ⇒ Object 



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# File 'lib/anoubis.rb', line 193

def manual_order_get_where_was
  where = {}
  if self.manual_order_options.key? :groups
    self.manual_order_options[:groups].each do |key|
      str = 'self.class.'+key.to_s.pluralize
      begin
#              puts str+'[(self.'+key.to_s+'_was).to_sym]'
        where[key.to_sym] = eval(str+'[(self.'+key.to_s+'_was).to_sym]')
      rescue
#              puts 'self.'+key.to_s+'_was'
        where[key.to_sym] = eval('self.'+key.to_s+'_was')
      end
    end
  end
  return where
end