lib/ultra_settings.rb in ultra_settings-2.1.0 vs lib/ultra_settings.rb in ultra_settings-2.2.0

@@ -4,10 +4,11 @@
 require "yaml"
 require "time"
 require "pathname"
 require "singleton"
 require "digest"
+require "uri"
 
 require_relative "ultra_settings/configuration"
 require_relative "ultra_settings/coerce"
 require_relative "ultra_settings/field"
 require_relative "ultra_settings/rack_app"
@@ -31,10 +32,11 @@
   VALID_NAME__PATTERN = /\A[a-z_][a-zA-Z0-9_]*\z/
 
   @configurations = {}
   @mutex = Mutex.new
   @runtime_settings = nil
+  @runtime_settings_url = nil
 
   class << self
     # Adds a configuration to the root namespace. The configuration will be
     # available as a method on the UltraSettings module with the provide name.
     #
@@ -163,9 +165,27 @@
     #
     # @return [Object, nil]
     # @api private
     def __runtime_settings__
       @runtime_settings
+    end
+
+    # Set the URL for changing runtime settings. If this is set, then a link to the
+    # URL will be displayed in the web view for fields that support runtime settings.
+    # The URL may contain a `${name}` placeholder that will be replaced with the name
+    # of the setting.
+    attr_writer :runtime_settings_url
+
+    # Get the URL for changing runtime settings.
+    #
+    # @param name [String] The name of the setting.
+    # @return [String, nil]
+    # @api private
+    def runtime_settings_url(name)
+      url = @runtime_settings_url.to_s
+      return nil if url.empty?
+
+      url.gsub("${name}", URI.encode_www_form_component(name))
     end
 
     def fields_secret_by_default=(value)
       Configuration.fields_secret_by_default = value
     end