From 495ea918408f870226ca5f699b4bf302f7ca81f3 Mon Sep 17 00:00:00 2001
From: Dominique Fournier <dominique@fournier38.fr>
Date: Mon, 25 Jul 2016 14:03:36 +0000
Subject: [PATCH] dblayer : allow to define the hook functions in the
 specification of the layer. Can be external ones

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@2950 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
---
 dblayer.php | 46 +++++++++++++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 9 deletions(-)

diff --git a/dblayer.php b/dblayer.php
index 62d649b..45dae89 100644
--- a/dblayer.php
+++ b/dblayer.php
@@ -64,6 +64,23 @@ class dblayer
   public $verifyOneFunc;
   /** Define the name of the method to use to verify all entries */
   public $verifyAllFunc;
+  /** Define the name of the method of hook before read */
+  public $hookprereadFunc;
+  /** Define the name of the method of hook after read */
+  public $hookpostreadFunc;
+  /** Define the name of the method of hook before insert */
+  public $hookpreinsertFunc;
+  /** Define the name of the method of hook after insert */
+  public $hookpostinsertFunc;
+  /** Define the name of the method of hook before update */
+  public $hookpreupdateFunc;
+  /** Define the name of the method of hook after update */
+  public $hookpostupdateFunc;
+  /** Define the name of the method of hook before delete */
+  public $hookpredeleteFunc;
+  /** Define the name of the method of hook after delete */
+  public $hookpostdeleteFunc;
+
 
   /** The verify unitary stack
       @param string $field The name of the field to test
@@ -104,6 +121,14 @@ class dblayer
   {
     $this->verifyOneFunc = array ($this, "verifyOne");
     $this->verifyAllFunc = array ($this, "verifyAll");
+    $this->hookprereadFunc    = array ($this, "hookpreread");
+    $this->hookpostreadFunc   = array ($this, "hookpostread");
+    $this->hookpreinsertFunc  = array ($this, "hookpreinsert");
+    $this->hookpostinsertFunc = array ($this, "hookpostinsert");
+    $this->hookpreupdateFunc  = array ($this, "hookpreupdate");
+    $this->hookpostupdateFunc = array ($this, "hookpostupdate");
+    $this->hookpredeleteFunc  = array ($this, "hookpredelete");
+    $this->hookpostdeleteFunc = array ($this, "hookpostdelete");
 
     $driver = @explode (":", $dsn);
     if (! isset ($driver[0]))
@@ -609,7 +634,7 @@ class dblayer
     array_walk ($binds, function(&$value, $key) {
       $value = md5 ($value);
     });
-    $dataOK = $this->hookpreinsert ($dataOK);
+    $dataOK = call_user_func ($this->hookpreinsertFunc, $dataOK);
     $req = "INSERT INTO $this->sep$this->tableprefix$this->table$this->sep ";
     $req .= "($this->sep".
             implode ("$this->sep,$this->sep", array_keys ($dataOK)).
@@ -646,7 +671,7 @@ class dblayer
       exit;
     }
     $lastID = self::$instance[$this->dsn]->lastInsertId();
-    $lastID = $this->hookpostinsert ($dataOK, $lastID);
+    $lastID = call_user_func ($this->hookpostinsertFunc, $dataOK, $lastID);
     return $lastID;
   }
 
@@ -707,7 +732,9 @@ class dblayer
       foreach ($foreignSelect as $s)
         $foreignSelectCols[] = $s[0];
     }
-    $this->hookpreread ($select, $display, $order, $whereOr, $foreignSelect);
+    call_user_func_array ($this->hookprereadFunc,
+                          array (&$select, &$display, &$order,
+                                 &$whereOr, &$foreignSelect));
     $req = "SELECT $this->sep";
     $req .= implode ("$this->sep,$this->sep", $display);
     $req .= "$this->sep ";
@@ -832,7 +859,7 @@ class dblayer
     $res = array ();
     while ($d = $st->fetch (PDO::FETCH_ASSOC))
       $res[] = $d;
-    $res = $this->hookpostread ($res);
+    $res = call_user_func ($this->hookpostreadFunc, $res);
     return $res;
   }
 
@@ -878,7 +905,7 @@ class dblayer
         $dataOK[$field] = $data[$field];
     }
 
-    $dataOK = $this->hookpreupdate ($updatekey, $dataOK);
+    $dataOK = call_user_func ($this->hookpreupdateFunc, $updatekey, $dataOK);
     $req = "UPDATE $this->sep".$this->tableprefix."$this->table$this->sep SET ";
     $i = 0;
     foreach ($dataOK as $key=>$val)
@@ -935,8 +962,8 @@ class dblayer
 
     $st->execute ();
     $nbLinesUpdated = $st->rowCount ();
-    $nbLinesUpdated = $this->hookpostupdate ($updatekey, $dataOK,
-                                             $nbLinesUpdated);
+    $nbLinesUpdated = call_user_func ($this->hookpostupdateFunc, $updatekey,
+                                      $dataOK, $nbLinesUpdated);
     return $nbLinesUpdated;
   }
 
@@ -952,7 +979,7 @@ class dblayer
       throw new \Exception (dgettext("domframework",
                             "No table name defined to delete in the table"),
                             500);
-    $deletekey = $this->hookpredelete ($deletekey);
+    $deletekey = call_user_func ($this->hookpredeleteFunc, $deletekey);
     $req = "DELETE FROM $this->sep$this->tableprefix$this->table$this->sep ";
     $req .= "WHERE $this->primary = :primary";
     $st = self::$instance[$this->dsn]->prepare ($req);
@@ -969,7 +996,8 @@ class dblayer
       throw new \Exception ($e->getMessage (), 500);
     }
     $nbLinesDeleted = $st->rowCount();
-    $nbLinesDeleted = $this->hookpostdelete ($deletekey, $nbLinesDeleted);
+    $nbLinesDeleted = call_user_func ($this->hookpostdeleteFunc, $deletekey,
+                                      $nbLinesDeleted);
     return $nbLinesDeleted;
   }