Class: Clevic::FilterCommand

Inherits:
Object
  • Object
show all
Defined in:
lib/clevic/filter_command.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(table_view, message = nil, &filter_block) ⇒ FilterCommand

filter_block will be passed a Dataset to filter. filter_message will be displayed.



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# File 'lib/clevic/filter_command.rb', line 5

def initialize( table_view, message = nil, &filter_block )
  @table_view = table_view
  @message = message || 'filtered'
  @filter_block = filter_block
end

Instance Attribute Details

#message ⇒ Object (readonly)

Returns the value of attribute message.



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# File 'lib/clevic/filter_command.rb', line 11

def message
  @message
end

Instance Method Details

#doit ⇒ Object

Do the filtering. Return true if successful, false otherwise.



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# File 'lib/clevic/filter_command.rb', line 14

def doit
  # store current dataset
  @previous_dataset = @table_view.model.cache_table.dataset

  # store auto_new
  @auto_new = @table_view.model.auto_new

  # reload cache table with new conditions
  @table_view.model.auto_new = false
  @table_view.model.reload_data( &@filter_block )
  true
rescue Exception => e
  puts
  puts e.message
  puts e.backtrace
  false
end

#undo ⇒ Object 



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# File 'lib/clevic/filter_command.rb', line 32

def undo
  # restore auto_new
  @table_view.model.auto_new = @auto_new

  # reload cache table with stored AR conditions
  @table_view.model.reload_data( @previous_dataset )
end