Class: Skyline::InlineRef

Inherits:
RefObject
  • Object
show all
Defined in:
app/models/skyline/inline_ref.rb

Direct Known Subclasses

ImageRef, LinkRef

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Attribute Details

#previous_referable ⇒ Object

Returns the value of attribute previous_referable.



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# File 'app/models/skyline/inline_ref.rb', line 3

def previous_referable
  @previous_referable
end

Class Method Details

.convert(object, column_name, with_refs = false, options = {}) ⇒ Object

Convert [REF:id] tags to html tags

Parameters

object<Object>

the object containing the string to be converted

column_name<String>

name of column containing the string to be converted

with_refs<Boolean>

boolean that sets wether to print skyline-reference tags into the html tag

Returns

String

converted html text



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# File 'app/models/skyline/inline_ref.rb', line 73

def convert(object,column_name,with_refs=false,options={})
  options.reverse_merge! :nullify => false
  
  refs = self.hash_refs_for_object(object, column_name)
  value = object[column_name]
  
  return value unless value.kind_of?(String)
  v = value.gsub(/\[REF:(\d+)\]/) do |match|
    i = match[5..-2]
    refs[i.to_i].to_start_html(with_refs,options)
  end

  outp = v.gsub(/\[\/REF:(\d+)\]/) do |match|
    i = match[6..-2]
    refs[i.to_i].to_end_html
  end
end

.hash_refs_for_object(object, column_name) ⇒ Object

Create hash of InlineRef objects for specified object and column name

Paramenters

object<Object>

the object containing the Inline Refs

column_name<String>

column name in which the inline refs are stored as [REF:id] tags

Retruns

Hash

a hash of inlinerefs with id as key and object as value



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# File 'app/models/skyline/inline_ref.rb', line 58

def hash_refs_for_object(object, column_name)
  types = [Skyline::ImageRef,Skyline::LinkRef].map(&:name)
  refs = Skyline::RefObject.all(:conditions => {:refering_id => object.id, :refering_type => object.class.name, :refering_column_name => column_name.to_s, :type => types})
  refs.inject({}){|mem,o| mem[o.id] = o; mem }
end

.parse_html(html_node, refering_object, refering_column_name) ⇒ Object

Convert an html tag to RefObject tag and update or create RefObject in database

Parameters

html_node<String>

the html node from the editor

refering_object<Object>

refering object

refering_column_name<Symbol>

column name in which the data is stored

Returns

String

converted html

Array

ids of refs in html



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# File 'app/models/skyline/inline_ref.rb', line 17

def parse_html(html_node, refering_object, refering_column_name)    
  old_refs = find_ref_ids_for_object(refering_object, refering_column_name)
        
  h = Hpricot(html_node)
  updated_refs = []
  
  # html tags to be converted to [REF:id]
  iterate_elements = {"a" => {:src => "href", :inner_html => true, :skyline_class => Skyline::LinkRef}, 
                      "img" => {:src => "src", :inner_html => false, :skyline_class => Skyline::ImageRef}                                          
                      } 
  
  iterate_elements.each do |tag, attributes|                
    h.search("#{tag}[@skyline-referable-type]").each do |node|                                 
      ref_obj_id = create_ref_from_node(node, refering_object, refering_column_name, attributes[:src], attributes[:skyline_class])
      if attributes[:inner_html]
        node.swap("[REF:#{ref_obj_id}]#{node.inner_html}[/REF:#{ref_obj_id}]")
      else
        node.swap("[REF:#{ref_obj_id}]")
      end
              
      updated_refs << ref_obj_id
    end
  end
  
  del = (old_refs - updated_refs)
  unless del.blank?
    self.destroy_all("id IN(#{del.join(',')})") 
    logger.warn("[InlineRef] Destroying refs for #{refering_object.class.name} id: #{refering_object.id} column: #{refering_column_name}. Ref's destroyed: #{del.inspect}")
  end
              
  [h.to_html, updated_refs]
end