module Roda::RodaPlugins::RenderEach::InstanceMethods

  1. lib/roda/plugins/render_each.rb

Methods

Public Instance

  1. render_each

Public Instance methods

render_each(enum, template, opts=(no_opts = true; optimized_template = _cached_render_each_template_method(template); OPTS), &block)

For each value in enum, render the given template using the given opts. The template and options hash are passed to render. Additional options supported:

:local

The local variable to use for the current enum value inside the template. An explicit nil value does not set a local variable. If not set, uses the template name.

[show source] 
    # File lib/roda/plugins/render_each.rb
109 def render_each(enum, template, opts=(no_opts = true; optimized_template = _cached_render_each_template_method(template); OPTS), &block)
110   if optimized_template
111     return _optimized_render_each(enum, optimized_template, render_each_default_local(template), {}, &block)
112   elsif opts.has_key?(:local)
113     as = opts[:local]
114   else
115     as = render_each_default_local(template)
116     if no_opts && optimized_template.nil? && (optimized_template = _optimized_render_method_for_locals(template, (locals = {as=>nil})))
117       return _optimized_render_each(enum, optimized_template, as, locals, &block)
118     end
119   end
120 
121   if as
122     opts = opts.dup
123     if locals
124       opts[:locals] = locals
125     else
126       locals = opts[:locals] = if locals = opts[:locals]
127         Hash[locals]
128       else
129         {}
130       end
131       locals[as] = nil
132     end
133 
134     if (opts.keys - ALLOWED_KEYS).empty? && (optimized_template = _optimized_render_method_for_locals(template, locals))
135       return _optimized_render_each(enum, optimized_template, as, locals, &block)
136     end
137   end
138 
139   if defined?(yield)
140     enum.each do |v|
141       locals[as] = v if as
142       yield render_template(template, opts)
143     end
144     nil
145   else
146     enum.map do |v|
147       locals[as] = v if as
148       render_template(template, opts)
149     end.join
150   end
151 end