Class: Mjml::Handler

Inherits:
Object
  • Object
show all
Defined in:
lib/mjml.rb

Instance Method Summary collapse

Instance Method Details

#call(template, source = nil) ⇒ Object

Optional second source parameter to make it work with Rails >= 6: Beginning with Rails 6 template handlers get the source of the template as the second parameter.



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# File 'lib/mjml.rb', line 61

def call(template, source = nil)
  compiled_source =
    if Rails::VERSION::MAJOR >= 6
      template_handler.call(template, source)
    else
      template_handler.call(template)
    end

  # Per MJML v4 syntax documentation[0] valid/render'able document MUST start with <mjml> root tag
  # If we get here and template source doesn't start with one it means
  # that we are rendering partial named according to legacy naming convention (partials ending with '.mjml')
  # Therefore we skip MJML processing and return raw compiled source. It will be processed
  # by MJML library when top-level layout/template is rendered
  #
  # [0] - https://github.com/mjmlio/mjml/blob/master/doc/guide.md#mjml
  if compiled_source =~ /<mjml(.+)?>/i
    "Mjml::Mjmltemplate.to_html(begin;#{compiled_source};end).html_safe"
  else
    compiled_source
  end
end

#template_handler ⇒ Object 



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# File 'lib/mjml.rb', line 54

def template_handler
  @_template_handler ||= ActionView::Template.registered_template_handler(Mjml.template_language)
end