Class: Props::PartialRenderer

Inherits:
ActionView::AbstractRenderer
  • Object
show all
Defined in:
lib/props_template/extensions/partial_renderer.rb

Constant Summary collapse

OPTION_AS_ERROR_MESSAGE = 
"The value (%s) of the option `as` is not a valid Ruby identifier; " \
"make sure it starts with lowercase letter, " \
"and is followed by any combination of letters, numbers and underscores."
IDENTIFIER_ERROR_MESSAGE = 
"The partial name (%s) is not a valid Ruby identifier; " \
"make sure your partial name starts with underscore."
INVALID_PARTIAL_MESSAGE = 
"The partial name must be a string, but received (%s)."

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context, options) ⇒ PartialRenderer

Returns a new instance of PartialRenderer.



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# File 'lib/props_template/extensions/partial_renderer.rb', line 124

def initialize(context, options)
  @context = context
  super(@context.lookup_context)
  @options = options.merge(formats: [:json])
  @options.delete(:handlers)
  @details = extract_details(@options)

  partial = @options[:partial]

  if !(String === partial)
    raise_invalid_partial(partial.inspect)
  end

  @path = partial
  @context_prefix = @lookup_context.prefixes.first
  template_keys = retrieve_template_keys(@options)
  @template = find_template(@path, template_keys)
end

Instance Attribute Details

#template ⇒ Object (readonly)

Returns the value of attribute template.



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# File 'lib/props_template/extensions/partial_renderer.rb', line 122

def template
  @template
end

Class Method Details

.find_and_add_template(builder, context, all_options) ⇒ Object 



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# File 'lib/props_template/extensions/partial_renderer.rb', line 60

def self.find_and_add_template(builder, context, all_options)
  first_opts = all_options[0]

  if first_opts[:partial]
    partial_opts = block_opts_to_render_opts(builder, first_opts)
    renderer = new(context, partial_opts)

    all_options.map do |opts|
      opts[:_template] = renderer.template
      opts
    end
  else
    all_options
  end
end

.raise_invalid_identifier(path) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/props_template/extensions/partial_renderer.rb', line 80

def self.raise_invalid_identifier(path)
  raise ArgumentError.new(IDENTIFIER_ERROR_MESSAGE % (path))
end

.raise_invalid_option_as(as) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/props_template/extensions/partial_renderer.rb', line 76

def self.raise_invalid_option_as(as)
  raise ArgumentError.new(OPTION_AS_ERROR_MESSAGE % (as))
end

.refine_options(options, item = nil) ⇒ Object 



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# File 'lib/props_template/extensions/partial_renderer.rb', line 91

def self.refine_options(options, item = nil)
  return options if !options[:partial]

  partial, rest = [*options[:partial]]
  rest = (rest || {}).clone
  locals = rest[:locals] || {}
  rest[:locals] = locals

  if item
    as = if !rest[:as]
      retrieve_variable(partial)
    else
      rest[:as].to_sym
    end

    raise_invalid_option_as(as) unless /\A[a-z_]\w*\z/.match?(as.to_s)

    locals[as] = item

    if fragment_name = rest[:fragment]
      fragment_name = Proc === fragment_name ? fragment_name.call(item) : fragment_name.to_s
      rest[:fragment] = fragment_name
    end
  end

  pass_opts = options.clone
  pass_opts[:partial] = [partial, rest]

  pass_opts
end

.retrieve_variable(path) ⇒ Object 



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# File 'lib/props_template/extensions/partial_renderer.rb', line 85

def self.retrieve_variable(path)
  base = path[-1] == "/" ? "" : File.basename(path)
  raise_invalid_identifier(path) unless base =~ /\A_?(.*?)(?:\.\w+)*\z/
  $1.to_sym
end

Instance Method Details

#render(template, options) ⇒ Object 



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# File 'lib/props_template/extensions/partial_renderer.rb', line 143

def render(template, options)
  #remove this later

  render_partial(template, @context, @options)
end