From a61e8d9cf92c475af64b3c74a339c8ede9e22d26 Mon Sep 17 00:00:00 2001
From: Floran Brutel <f.brutel@beware.fr>
Date: Tue, 26 Nov 2013 21:52:44 +0100
Subject: [PATCH] Add ability to use param in breadcrumb title

Now we can add parameters in the title as:
    /**
     * @Breadcrumb("{book}")
     */
    public function showAction(Book $book) { }
---
 BreadcrumbTrail/Trail.php     | 27 +++++++++++
 README.md                     | 85 +++++++++++++++++++++++++++++++++++
 Resources/config/services.xml |  2 +-
 3 files changed, 113 insertions(+), 1 deletion(-)

diff --git a/BreadcrumbTrail/Trail.php b/BreadcrumbTrail/Trail.php
index c0e2bf5..9d671b7 100644
--- a/BreadcrumbTrail/Trail.php
+++ b/BreadcrumbTrail/Trail.php
@@ -69,6 +69,8 @@ public function getTemplate()
      * @param Boolean $routeAbsolute        Whether to generate an absolute URL
      * @param integer $position             Position of the breadcrumb (default = 0)
      * @param mixed   $attributes           Additional attributes for the breadcrumb
+     * @throws \RuntimeException
+     * @throws \InvalidArgumentException
      * @return self
      */
     public function add($breadcrumb_or_title, $routeName = null, $routeParameters = array(), $routeAbsolute = false, $position = 0, $attributes = array())
@@ -87,6 +89,31 @@ public function add($breadcrumb_or_title, $routeName = null, $routeParameters =
             $request = $this->container->get('request', ContainerInterface::NULL_ON_INVALID_REFERENCE);
             
             if ($request !== null) {
+                preg_match_all('#\{(?P<variable>\w+).?(?P<function>\w*):?(?P<parameters>(\w|,| )*)\}#', $breadcrumb_or_title, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
+                foreach ($matches as $match) {
+                    $varName = $match['variable'][0];
+                    $functionName = $match['function'][0];
+                    $parameters = explode(',', $match['parameters'][0]);
+
+                    if($request->attributes->has($varName)) {
+                        $object = $request->attributes->get($varName);
+
+                        if(empty($functionName)) {
+                            $objectValue = (string) $object;
+                        }
+                        elseif(is_callable(array($object, $fullFunctionName = 'get'.$functionName))
+                           || is_callable(array($object, $fullFunctionName = 'has'.$functionName))
+                           || is_callable(array($object, $fullFunctionName = 'is'.$functionName))) {
+                            $objectValue = call_user_func_array(array($object, $fullFunctionName),$parameters);
+                        }
+                        else {
+                            throw new \RuntimeException(sprintf('Function "%s" not found.', $functionName));
+                        }
+
+                        $breadcrumb_or_title = str_replace($match[0][0], $objectValue, $breadcrumb_or_title);
+                    }
+                }
+
                 foreach ($routeParameters as $key => $value) {
                     if (is_numeric($key)) {
                         $routeParameters[$value] = $request->get($value);
diff --git a/README.md b/README.md
index 1da80af..48bf298 100644
--- a/README.md
+++ b/README.md
@@ -141,7 +141,92 @@ class MyController extends Controller
 
         */
     }
+
+}
+```
+
+#### Title with @ParamConverter
+
+The [@ParamConverter](http://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html#annotation-configuration) of the SensioFrameworkExtraBundle convert request parameters like 'id' to objects then injected as controller method arguments:
+
+It is possible to display values ​​of these objects in the breadcrumb.
+
+
+```
+...
+use APY\BreadcrumbTrailBundle\Annotation\Breadcrumb;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+
+/**
+ * @Route("/book/{id}")
+ * @Breadcrumb("Books")
+ * @Breadcrumb("{book}")
+ */
+public function aShowAction(Book $book)
+{
+
+    /*
+
+    This action will show the following breacrumb trail:
+    Books > result of __toString method of $book's Object
+
+    */
+
+}
+
+/**
+ * @Route("/book/{id}")
+ * @Breadcrumb("Books")
+ * @Breadcrumb("{book.title}")
+ */
+public function bShowAction(Book $book)
+{
+
+    /*
+
+    This action will show the following breacrumb trail:
+    Books > result of getTitle method of $book's Object
+
+    The bundle tries to call the methods : getTitle, hasTitle or isTitle
+
+    */
+
+}
+
+/**
+ * @Route("/book/{id}")
+ * @Breadcrumb("Books")
+ * @Breadcrumb("{book.title:argument1}")
+ */
+public function cShowAction(Book $book)
+{
+
+    /*
+
+    This action will show the following breacrumb trail:
+    Books > result of getTitle('argument1') method of $book's Object
+
+    */
+
+}
+
+/**
+ * @Route("/book/{id}")
+ * @Breadcrumb("Books")
+ * @Breadcrumb("{book.title:argument1: argument2}")
+ */
+public function dShowAction(Book $book)
+{
+
+    /*
+
+    This action will show the following breacrumb trail:
+    Books > result of getTitle('argument1', ' argument2') method of $book's Object
+
+    */
+
 }
+
 ```
 
 ---
diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index 97ebd74..a217441 100644
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -24,7 +24,7 @@
         </service>
 
         <service id="apy_breadcrumb_trail.annotation.listener" class="%apy_breadcrumb_trail.annotation.listener.class%">
-            <tag name="kernel.event_listener" event="kernel.controller" method="onKernelController" />
+            <tag name="kernel.event_listener" event="kernel.controller" method="onKernelController" priority="-1" />
             <argument type="service" id="annotation_reader" />
             <argument type="service" id="apy_breadcrumb_trail" />
         </service>