Module: ActiveScaffold::DataStructures::ActionColumns::AfterConfiguration

Defined in:
lib/six-updater-web/vendor/plugins/active_scaffold/lib/active_scaffold/data_structures/action_columns.rb

Overview

A package of stuff to add after the configuration block. This is an attempt at making a certain level of functionality inaccessible during configuration, to reduce possible breakage from misuse. The bulk of the package is a means of connecting the referential column set (ActionColumns) with the actual column objects (Columns). This lets us iterate over the set and yield real column objects.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#constraint_columns ⇒ Object 



88
89
90
 
# File 'lib/six-updater-web/vendor/plugins/active_scaffold/lib/active_scaffold/data_structures/action_columns.rb', line 88

def constraint_columns
  @constraint_columns ||= []
end

Instance Method Details

#each(options = {}, &proc) ⇒ Object

Redefine the each method to yield actual Column objects. It will skip constrained and unauthorized columns.

Options:

* :flatten - whether to recursively iterate on nested sets. default is false.
* :for - the record (or class) being iterated over. used for column-level security. default is the class.



57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/six-updater-web/vendor/plugins/active_scaffold/lib/active_scaffold/data_structures/action_columns.rb', line 57

def each(options = {}, &proc)
  options[:for] ||= @columns.active_record_class

  @set.each do |item|
    unless item.is_a? ActiveScaffold::DataStructures::ActionColumns
      item = (@columns[item] || ActiveScaffold::DataStructures::Column.new(item.to_sym, @columns.active_record_class))
      # skip if this matches a constrained column
      next if constraint_columns.include?(item.name.to_sym)
      # skip if this matches the field_name of a constrained column
      next if item.field_name and constraint_columns.include?(item.field_name.to_sym)
      # skip this field if it's not authorized
      next unless options[:for].authorized_for?(:action => options[:action] || self.action.crud_type, :column => item.name)
    end
    if item.is_a? ActiveScaffold::DataStructures::ActionColumns and options.has_key?(:flatten) and options[:flatten]
      item.each(options, &proc)
    else
      yield item
    end
  end
end

#length ⇒ Object 



92
93
94
 
# File 'lib/six-updater-web/vendor/plugins/active_scaffold/lib/active_scaffold/data_structures/action_columns.rb', line 92

def length
  (@set - self.constraint_columns).length
end

#set_columns(columns) ⇒ Object

registers a set of column objects (recursively, for all nested ActionColumns)



79
80
81
82
83
84
85
 
# File 'lib/six-updater-web/vendor/plugins/active_scaffold/lib/active_scaffold/data_structures/action_columns.rb', line 79

def set_columns(columns)
  @columns = columns
  # iterate over @set instead of self to avoid dealing with security queries
  @set.each do |item|
    item.set_columns(columns) if item.respond_to? :set_columns
  end
end