Class: Tag

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/tag.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#size ⇒ Object

Returns the value of attribute size.



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# File 'app/models/tag.rb', line 7

def size
  @size
end

Class Method Details

.cloud(options = {}) ⇒ Object

Returns an array of tags with a size attribute This takes the same arguments as find, plus the additional ‘:sizes` option, which contols the number of sizes the tag cloud will have. The default number of sizes is 5.



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# File 'app/models/tag.rb', line 26

def self.cloud(options={})
  sizes = (options.delete(:sizes) || 5) - 1
  sizes = 1 if sizes < 1
  tags = counts(options)
  return [] if tags.blank?
  
  min = nil
  max = nil
  tags.each do |t|
    t.count = t.count.to_i
    min = t.count if (min.nil? || t.count < min)
    max = t.count if (max.nil? || t.count > min)
  end

  divisor = ((max - min) / sizes) + 1
  tags.each do |t|
    t.size = ("%1.0f" % (t.count * 1.0 / divisor)).to_i
  end
  
  tags
end

.columns_for_index ⇒ Object 



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# File 'app/models/tag.rb', line 52

def self.columns_for_index
  [ {:label => "Name", :method => :name, :order => "name" },
    {:label => "Usages", :method => :tagging_count },
    {:label => "Updated On", :method => :updated_on_string, :order => "updated_at"}  ]
end

.counts(options = {}) ⇒ Object

Returns an array of tags with a count attribute



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# File 'app/models/tag.rb', line 12

def self.counts(options={})
  with_scope(:find => { 
      :select => "tags.id, tags.name, count(*) as count", 
      :joins => :taggings, 
      :group => "tags.id, tags.name", 
      :order => "count desc, tags.name" }) do
    all(options)
  end
end

Instance Method Details

#render ⇒ Object 



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# File 'app/models/tag.rb', line 58

def render
  @taggings = @content_block.taggings.paginate(:page => params[:page])
end

#tagging_count ⇒ Object 



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# File 'app/models/tag.rb', line 48

def tagging_count
  taggings.count
end