Module: Zena::Use::ScopeIndex::IndexMethods

Included in:
IdxProject
Defined in:
lib/zena/use/scope_index.rb

Overview

VirtualClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/zena/use/scope_index.rb', line 83

def self.included(base)
  AVAILABLE_MODELS << base

  class << base
    attr_accessor :groups
  end

  base.class_eval do
    include RubyLess
    before_validation     :set_site_id
    validates_presence_of :node_id
  end

  groups = base.groups = {}
  base.column_names.each do |name|
    next if %{created_at updated_at id node_id site_id}.include?(name)
    if name =~ %r{\A([^_]+)_(.+)\Z}
      (groups[$1] ||= []) << $2
      unless $2 == 'id'
        base.safe_attribute name
      end
    end
  end
end

Instance Method Details

#set_site_id ⇒ Object 



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# File 'lib/zena/use/scope_index.rb', line 160

def set_site_id
  self[:site_id] = current_site.id
end

#should_clear_group?(group_key, deleted_node) ⇒ Boolean

Return true if the indices from the given group should be cleared when the given node is deleted.

Returns:

  • (Boolean) 


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# File 'lib/zena/use/scope_index.rb', line 156

def should_clear_group?(group_key, deleted_node)
  deleted_node.id == self["#{group_key}_id"].to_i
end

#should_update_group?(group_key, node) ⇒ Boolean

Return true if the indices from the given group should be altered by the node.

Returns:

  • (Boolean) 


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# File 'lib/zena/use/scope_index.rb', line 150

def should_update_group?(group_key, node)
  node.id >= self["#{group_key}_id"].to_i
end

#update_after_destroy(deleted_node, keys) ⇒ Object 



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# File 'lib/zena/use/scope_index.rb', line 132

def update_after_destroy(deleted_node, keys)
  groups = self.class.groups
  attrs  = {}
  keys.each do |group_key|
    next unless list = groups[group_key]
    next unless should_clear_group?(group_key, deleted_node)
    list.each do |key|
      attrs["#{group_key}_#{key}"] = nil
    end
  end

  if !attrs.empty?
    self.attributes = attrs
    save
  end
end

#update_with(node, keys, force_create = false) ⇒ Object

The given node has been updated in the owner’s project. Update index entries with this node’s content if necessary.



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# File 'lib/zena/use/scope_index.rb', line 110

def update_with(node, keys, force_create = false)
  attrs = {}
  prop_column_names = node.schema.column_names
  groups = self.class.groups
  keys.each do |group_key|
    next unless list = groups[group_key]
    next unless should_update_group?(group_key, node)
    list.each do |key|
      if prop_column_names.include?(key)
        attrs["#{group_key}_#{key}"] = node.prop[key]
      elsif node.respond_to?(key)
        attrs["#{group_key}_#{key}"] = node.send(key)
      end
    end
  end

  if !attrs.empty? || force_create
    self.attributes = attrs
    save
  end
end