Class: Liquid::Assign

Inherits:
Tag
  • Object
show all
Defined in:
lib/liquid/tags/assign.rb

Overview

Assign sets a variable in your template.

{% assign foo = 'monkey' %}

You can then use the variable later in the page.

{{ foo }}

Defined Under Namespace

Classes: ParseTreeVisitor

Constant Summary collapse

Syntax = 
/(#{VariableSignature}+)\s*=\s*(.*)\s*/om

Instance Attribute Summary collapse

Attributes inherited from Tag

#line_number, #nodelist, #parse_context, #tag_name

Instance Method Summary collapse

Methods inherited from Tag

#name, #parse, parse, #raw

Methods included from ParserSwitching

#parse_with_selected_parser

Constructor Details

#initialize(tag_name, markup, options) ⇒ Assign

Returns a new instance of Assign.



15
16
17
18
19
20
21
22
23
 
# File 'lib/liquid/tags/assign.rb', line 15

def initialize(tag_name, markup, options)
  super
  if markup =~ Syntax
    @to = $1
    @from = Variable.new($2, options)
  else
    raise SyntaxError.new options[:locale].t("errors.syntax.assign".freeze)
  end
end

Instance Attribute Details

#from ⇒ Object (readonly)

Returns the value of attribute from.



13
14
15
 
# File 'lib/liquid/tags/assign.rb', line 13

def from
  @from
end

#to ⇒ Object (readonly)

Returns the value of attribute to.



13
14
15
 
# File 'lib/liquid/tags/assign.rb', line 13

def to
  @to
end

Instance Method Details

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


32
33
34
 
# File 'lib/liquid/tags/assign.rb', line 32

def blank?
  true
end

#render(context) ⇒ Object 



25
26
27
28
29
30
 
# File 'lib/liquid/tags/assign.rb', line 25

def render(context)
  val = @from.render(context)
  context.scopes.last[@to] = val
  context.resource_limits.assign_score += assign_score_of(val)
  ''.freeze
end