Class: PandaCms::Template

Inherits:
ApplicationRecord show all
Defined in:
app/models/panda_cms/template.rb

Overview

Represents a template in the Panda CMS application.

Class Method Summary collapse

Class Method Details

.default ⇒ Object 



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# File 'app/models/panda_cms/template.rb', line 29

def self.default
  find_by(file_path: "layouts/page") || first
end

.generate_missing_blocks ⇒ void

This method returns an undefined value.

Generate missing blocks for all templates



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# File 'app/models/panda_cms/template.rb', line 35

def self.generate_missing_blocks
  # Loop through all templates in app/views/layouts/*.html.erb
  Dir.glob("app/views/layouts/*.html.erb").each do |file|
    # TODO: Delete all blocks which aren't in use by a template?

    File.open(file).each_line do |line|
      # Matches:
      # PandaCms::RichTextComponent.new(key: :value)
      # PandaCms::RichTextComponent.new key: :value, key: value
      line.match(/PandaCms::([a-zA-Z]+)Component\.new[ \(]+([^\)]+)[\)]*/) do |match|
        # Extract the hash values
        template_path = file.gsub("app/views/", "").gsub(".html.erb", "")
        template_name = template_path.gsub("layouts/", "").titleize

        # Create the template if it doesn't exist
        template = PandaCms::Template.find_or_create_by!(file_path: template_path) do |template|
          template.name = template_name
        end

        next if match[1] == "PageMenu" # Skip PageMenu blocks
        next if match[1] == "Menu" # Skip Menu blocks

        # Previously used match[1].underscore but this supports more complex database
        # operations, and is more secure as it'll force the usage of a class
        block_kind = "PandaCms::#{match[1]}Component".constantize::KIND

        match[2].split(",").map do |keyvar|
          key, value = keyvar.split(":", 2)
          next if key != "key"

          block_name = value.to_s.strip.tr(":", "")
          # Create the block if it doesn't exist
          # TODO: +/- the output if it's created or removed
          begin
            block = PandaCms::Block.find_or_create_by!(template: template, kind: block_kind, key: block_name) do |block|
              block.name = block_name.titleize
            end
          rescue ActiveRecord::RecordInvalid => e
            raise "Error creating block '#{block_name}' on template '#{template_name}': #{e.message}"
          end

          # For the given block, create the block_content for each page using the template
          template.pages.each do |page|
            PandaCms::BlockContent.find_or_create_by!(block: block, page: page) do |block_content|
              block_content.content = ""
            end
          end
        end
      end
    end
  end
end