Class: ActionView::Base

Inherits:
Object show all
Defined in:
lib/six-updater-web/vendor/plugins/active_scaffold/lib/extensions/action_view_rendering.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#partial_pieces(partial_path) ⇒ Object 



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# File 'lib/six-updater-web/vendor/plugins/active_scaffold/lib/extensions/action_view_rendering.rb', line 66

def partial_pieces(partial_path)
  if partial_path.include?('/')
    return File.dirname(partial_path), File.basename(partial_path)
  else
    return controller.class.controller_path, partial_path
  end
end

#render_with_active_scaffold(*args, &block) ⇒ Object

Adds two rendering options.

render :super

This syntax skips all template overrides and goes directly to the provided ActiveScaffold templates. Useful if you want to wrap an existing template. Just call super!

render :active_scaffold => #ActionView::Base.controllercontroller.to_s, options = {}+

Lets you embed an ActiveScaffold by referencing the controller where it’s configured.

You may specify options for the embedded scaffold. These constraints have three effects:

* the scaffold's only displays records matching the constraint
* all new records created will be assigned the constrained values
* constrained columns will be hidden (they're pretty boring at this point)

You may also specify options for the embedded scaffold. These only do 1/3 of what constraints do (they only limit search results). Any format accepted by ActiveRecord::Base.find is valid.

Defining options lets you completely customize the list title for the embedded scaffold.



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# File 'lib/six-updater-web/vendor/plugins/active_scaffold/lib/extensions/action_view_rendering.rb', line 25

def render_with_active_scaffold(*args, &block)
  if args.first == :super
    options = args[1] || {}
    options[:locals] ||= {}

    known_extensions = [:erb, :rhtml, :rjs, :haml]
    # search through call stack for a template file (normally matches on first caller)
    # note that we can't use split(':').first because windoze boxen may have an extra colon to specify the drive letter. the
    # solution is to count colons from the *right* of the string, not the left. see issue #299.
    template_path = caller.find{|c| known_extensions.include?(c.split(':')[-3].split('.').last.to_sym) }
    template = File.basename(template_path.split(':')[-3])

    # paths previous to current template_path must be ignored to avoid infinite loops when is called twice or more
    index = 0
    controller.class.active_scaffold_paths.each_with_index do |active_scaffold_template_path, i|
      index = i + 1 and break if template_path.include? active_scaffold_template_path
    end

    controller.class.active_scaffold_paths.slice(index..-1).each do |active_scaffold_template_path|
      active_scaffold_template = File.join(active_scaffold_template_path, template)
      return render(:file => active_scaffold_template, :locals => options[:locals]) if File.file? active_scaffold_template
    end
  elsif args.first.is_a?(Hash) and args.first[:active_scaffold]
    require 'digest/md5'
    options = args.first

    remote_controller = options[:active_scaffold]
    constraints = options[:constraints]
    conditions = options[:conditions]
    eid = Digest::MD5.hexdigest(params[:controller] + remote_controller.to_s + constraints.to_s + conditions.to_s)
    session["as:#{eid}"] = {:constraints => constraints, :conditions => conditions, :list => {:label => args.first[:label]}}
    options[:params] ||= {}
    options[:params].merge! :eid => eid

    render_component :controller => remote_controller.to_s, :action => 'table', :params => options[:params]
  else
    render_without_active_scaffold(*args, &block)
  end
end

#template_exists?(template_name, lookup_overrides = false) ⇒ Boolean

This is the template finder logic, keep it updated with however we find stuff in rails currently this very similar to the logic in ActionBase::Base.render for options file TODO: Work with rails core team to find a better way to check for this.

Returns:

  • (Boolean) 


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# File 'lib/six-updater-web/vendor/plugins/active_scaffold/lib/extensions/action_view_rendering.rb', line 77

def template_exists?(template_name, lookup_overrides = false)
  begin
    method = 'find_template'
    method << '_without_active_scaffold' unless lookup_overrides
    self.view_paths.send(method, template_name, @template_format)
    return true
  rescue ActionView::MissingTemplate => e
    return false
  end
end