diff --git a/module/doc/model.php b/module/doc/model.php
index 40970741fb..27173264de 100644
--- a/module/doc/model.php
+++ b/module/doc/model.php
@@ -999,7 +999,7 @@ class docModel extends model
                 ->leftJoin(TABLE_DOCLIB)->alias('t3')->on("t1.lib=t3.id")
                 ->where('t1.deleted')->eq(0)
                 ->andWhere('t1.templateType')->eq('')
-                ->andWhere('t1.lib')->ne('')
+                ->andWhere('t1.lib')->ne(0)
                 ->andWhere('t1.type')->in($this->config->doc->docTypes)
                 ->andWhere('t1.vision')->eq($this->config->vision)
                 ->andWhere('t2.id')->subIn($docSQL)
@@ -1023,7 +1023,7 @@ class docModel extends model
             $docIdList = $type == 'editedby' ? $this->docTao->getEditedDocIdList() : array();
             $docs = $this->dao->select('t1.*,t2.name as libName,t2.type as objectType')->from(TABLE_DOC)->alias('t1')->leftJoin(TABLE_DOCLIB)->alias('t2')->on("t1.lib=t2.id")
                 ->where('t1.deleted')->eq(0)
-                ->andWhere('t1.lib')->ne('')
+                ->andWhere('t1.lib')->ne(0)
                 ->andWhere('t1.templateType')->eq('')
                 ->andWhere('t1.vision')->eq($this->config->vision)
                 ->andWhere('t1.type')->in($this->config->doc->docTypes)
@@ -2858,7 +2858,7 @@ class docModel extends model
             ->andWhere('t1.action')->eq('edited')
             ->andWhere('t1.actor')->eq($this->app->user->account)
             ->andWhere('t1.vision')->eq($this->config->vision)
-            ->andWhere('t2.lib')->ne('')
+            ->andWhere('t2.lib')->ne(0)
             ->andWhere('t2.deleted')->eq(0)
             ->andWhere('t2.type')->in($this->config->doc->docTypes)
             ->fetch('count');
@@ -2869,7 +2869,7 @@ class docModel extends model
             ->andWhere('templateType')->eq('')
             ->andWhere('deleted')->eq(0)
             ->andWhere('vision')->eq($this->config->vision)
-            ->andWhere('lib')->ne('')
+            ->andWhere('lib')->ne(0)
             ->fetch();
 
         $statistic->myDocs = $myStatistic->myDocs;
diff --git a/module/doc/tao.php b/module/doc/tao.php
index 5b55ea093a..59e6e3d039 100644
--- a/module/doc/tao.php
+++ b/module/doc/tao.php
@@ -145,7 +145,7 @@ class docTao extends docModel
         return $this->dao->select('t1.*, t2.name as libName, t2.type as objectType')->from(TABLE_DOC)->alias('t1')
             ->leftJoin(TABLE_DOCLIB)->alias('t2')->on("t1.lib=t2.id")
             ->where('t1.deleted')->eq(0)
-            ->andWhere('t1.lib')->ne('')
+            ->andWhere('t1.lib')->ne(0)
             ->andWhere('t1.id')->in($hasPrivDocIdList)
             ->beginIF($this->config->doc->notArticleType)->andWhere('t1.type')->notIN($this->config->doc->notArticleType)->fi()
             ->andWhere('t1.addedBy')->eq($this->app->user->account)
@@ -178,7 +178,7 @@ class docTao extends docModel
             ->leftJoin(TABLE_DOCLIB)->alias('t2')->on("t1.lib=t2.id")
             ->where('t1.deleted')->eq(0)
             ->andWhere('t1.id')->in(array_keys($docIdList))
-            ->andWhere('t1.lib')->ne('')
+            ->andWhere('t1.lib')->ne(0)
             ->andWhere('t1.vision')->in($this->config->vision)
             ->beginIF($this->config->doc->notArticleType)->andWhere('t1.type')->notIN($this->config->doc->notArticleType)->fi()
             ->orderBy($sort)
@@ -225,7 +225,7 @@ class docTao extends docModel
         return $this->dao->select('t1.*')->from(TABLE_DOC)->alias('t1')
             ->leftJoin(TABLE_DOCACTION)->alias('t2')->on("t1.id=t2.doc && t2.action='collect'")
             ->where('t1.deleted')->eq(0)
-            ->andWhere('t1.lib')->ne('')
+            ->andWhere('t1.lib')->ne(0)
             ->andWhere('t1.templateType')->eq('')
             ->andWhere('t1.id')->in($hasPrivDocIdList)
             ->beginIF($this->config->doc->notArticleType)->andWhere('t1.type')->notIN($this->config->doc->notArticleType)->fi()
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index de543c2e50..7f01ff27d6 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -10996,7 +10996,7 @@ class upgradeModel extends model
             ->leftJoin(TABLE_DOCCONTENT)->alias('t2')->on('t1.id = t2.doc && t1.version = t2.version')
             ->where('t1.deleted')->eq(0)
             ->andWhere('t1.templateType')->ne('')
-            ->andWhere('t1.lib')->eq('')
+            ->andWhere('t1.lib')->eq(0)
             ->andWhere('t1.module')->eq('')
             ->fetchAll('id', false);
         if(empty($templateList)) return array();