Look before leaping when flushing pseudoconstants CRM-12471

CRM/Campaign/PseudoConstant.php

@@ -157,7 +157,9 @@ class CRM_Campaign_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 }
 

CRM/Case/PseudoConstant.php

@@ -274,7 +274,9 @@ class CRM_Case_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 }
 

CRM/Contribute/PseudoConstant.php

@@ -185,7 +185,9 @@ class CRM_Contribute_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 
   /**

CRM/Core/PseudoConstant.php

@@ -476,7 +476,9 @@ class CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+    if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 
   /**

CRM/Event/PseudoConstant.php

@@ -276,7 +276,9 @@ class CRM_Event_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 
   /**

CRM/Grant/PseudoConstant.php

@@ -108,7 +108,9 @@ class CRM_Grant_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 }
 

CRM/Mailing/PseudoConstant.php

@@ -240,7 +240,9 @@ class CRM_Mailing_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 }
 

CRM/Member/PseudoConstant.php

@@ -126,7 +126,9 @@ class CRM_Member_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 }
 

CRM/PCP/PseudoConstant.php

@@ -101,7 +101,9 @@ class CRM_PCP_PseudoConstant extends CRM_Core_PseudoConstant {
    *
    */
   public static function flush($name) {
-    self::$$name = NULL;
+   if (isset(self::$$name)) {
+      self::$$name = NULL;
+    }
   }
 }