Class: ComfortableMexicanSofa::Content::Tag::Helper
- Inherits:
-
ComfortableMexicanSofa::Content::Tag
- Object
- ComfortableMexicanSofa::Content::Tag
- ComfortableMexicanSofa::Content::Tag::Helper
- Defined in:
- lib/comfortable_mexican_sofa/content/tags/helper.rb
Overview
Tag for injecting view helpers. Example tag:
{{cms:helper method_name, param_a, param_b, foo: bar}}
This expands into something like this:
<%= method_name("param_a", "param_b", "foo" => "bar") %>
Whitelist is can be used to control what helpers are available. By default there’s a blacklist of methods that should not be called.
Constant Summary collapse
- BLACKLIST =
%w(eval class_eval instance_eval render)
Instance Attribute Summary collapse
-
#method_name ⇒ Object
readonly
Returns the value of attribute method_name.
Attributes inherited from ComfortableMexicanSofa::Content::Tag
Instance Method Summary collapse
-
#allow_erb ⇒ Object
we output erb into rest of the content.
- #content ⇒ Object
-
#initialize(context, params_string) ⇒ Helper
constructor
A new instance of Helper.
- #render ⇒ Object
Methods inherited from ComfortableMexicanSofa::Content::Tag
Constructor Details
#initialize(context, params_string) ⇒ Helper
Returns a new instance of Helper.
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# File 'lib/comfortable_mexican_sofa/content/tags/helper.rb', line 14 def initialize(context, params_string) super @method_name = params.shift unless @method_name.present? raise Error, "Missing method name for helper tag" end end |
Instance Attribute Details
#method_name ⇒ Object (readonly)
Returns the value of attribute method_name.
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# File 'lib/comfortable_mexican_sofa/content/tags/helper.rb', line 12 def method_name @method_name end |
Instance Method Details
#allow_erb ⇒ Object
we output erb into rest of the content
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# File 'lib/comfortable_mexican_sofa/content/tags/helper.rb', line 24 def allow_erb true end |
#content ⇒ Object
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# File 'lib/comfortable_mexican_sofa/content/tags/helper.rb', line 28 def content helper_params = params.map do |p| case p when Hash p.to_s else "\"#{p}\"" end end.join(",") "<%= #{method_name}(#{helper_params}) %>" end |
#render ⇒ Object
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# File 'lib/comfortable_mexican_sofa/content/tags/helper.rb', line 40 def render whitelist = ComfortableMexicanSofa.config.allowed_helpers if whitelist.is_a?(Array) content if whitelist.map!(&:to_s).member?(method_name) else content unless BLACKLIST.member?(method_name) end end |