Module: ProMotion::Table::Searchable

Included in:
DataTable
Defined in:
lib/project/pro_motion/data_table_searchable.rb

Instance Method Summary collapse

Instance Method Details

#dt_searchDisplayController(controller, shouldReloadTableForSearchString: search_string) ⇒ Object 



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 77

def dt_searchDisplayController(controller, shouldReloadTableForSearchString:search_string)
  @_data_table_search_string = search_string
  reset_search_frc
  true
end

#dt_searchDisplayControllerWillBeginSearch(controller) ⇒ Object

iOS methods, headless camel case #######



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 63

def dt_searchDisplayControllerWillBeginSearch(controller)
  @_data_table_searching = true
  search_controller.delegate.will_begin_search if search_controller.delegate.respond_to? "will_begin_search"
end

#dt_searchDisplayControllerWillEndSearch(controller) ⇒ Object 



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 68

def dt_searchDisplayControllerWillEndSearch(controller)
  @_data_table_searching = false
  @_search_fetch_controller.delegate = nil unless @_search_fetch_controller.nil?
  @_search_fetch_controller = nil
  @_data_table_search_string = nil
  search_controller.delegate.will_end_search if search_controller.delegate.respond_to? "will_end_search"
  update_table_data
end

#make_data_table_searchable(params = {}) ⇒ Object 



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 5

def make_data_table_searchable(params={})
  if params[:search_bar][:fields].nil?
    raise "ERROR: You must specify fields:[:example] for your searchable DataTableScreen. It should be an array of fields you want searched in CDQ."
  else
    @data_table_predicate_fields = params[:search_bar][:fields]
  end
  params[:delegate] = search_delegate
  params[:search_results_updater] = search_delegate

  make_searchable(params)
end

#new_frc_with_search(search_string) ⇒ Object 



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 21

def new_frc_with_search(search_string)
  return if @data_table_predicate_fields.blank?

  # Create the predicate from the predetermined fetch scope.
  where = @data_table_predicate_fields.map{|f| "#{f} CONTAINS[cd] \"#{search_string}\"" }.join(" OR ")
  search_scope = fetch_scope.where(where)

  # Create the search FRC with the predicate and set delegate
  search = NSFetchedResultsController.alloc.initWithFetchRequest(
    search_scope.fetch_request,
    managedObjectContext: search_scope.context,
    sectionNameKeyPath: nil,
    cacheName: nil
  )
  search.delegate = search_delegate

  # Perform the fetch
  error_ptr = Pointer.new(:object)
  unless search.performFetch(error_ptr)
    raise "Error performing fetch: #{error_ptr[2].description}"
  end

  search
end

#reset_search_frc ⇒ Object 



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 46

def reset_search_frc
  # Update the filter, in this case just blow away the FRC and let
  # lazy evaluation create another with the relevant search info
  @_search_fetch_controller.delegate = nil unless @_search_fetch_controller.nil?
  @_search_fetch_controller = nil
end

#search_delegate ⇒ Object 



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 53

def search_delegate
  @_search_delegate ||= begin
    d = DataTableSeachDelegate.new
    d.parent = WeakRef.new(self)
    d
  end
end

#search_fetch_controller ⇒ Object 



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# File 'lib/project/pro_motion/data_table_searchable.rb', line 17

def search_fetch_controller
  @_search_fetch_controller ||= new_frc_with_search(search_string)
end