Fix: sql error on editing project with pgsql.

Fix: Error management on project edit.

htdocs/projet/class/project.class.php

@@ -204,9 +204,9 @@ class Project extends CommonObject
             $sql.= ", fk_soc = " . ($this->socid > 0 ? $this->socid : "null");
             $sql.= ", fk_statut = " . $this->statut;
             $sql.= ", public = " . ($this->public ? 1 : 0);
-            $sql.= ", datec=" . ($this->date_c != '' ? $this->db->idate($this->date_c) : 'null');
-            $sql.= ", dateo=" . ($this->date_start != '' ? $this->db->idate($this->date_start) : 'null');
-            $sql.= ", datee=" . ($this->date_end != '' ? $this->db->idate($this->date_end) : 'null');
+            $sql.= ", datec=" . ($this->date_c != '' ? "'".$this->db->idate($this->date_c)."'" : 'null');
+            $sql.= ", dateo=" . ($this->date_start != '' ? "'".$this->db->idate($this->date_start)."'" : 'null');
+            $sql.= ", datee=" . ($this->date_end != '' ? "'".$this->db->idate($this->date_end)."'" : 'null');
             $sql.= " WHERE rowid = " . $this->id;
 
             dol_syslog(get_class($this)."::Update sql=" . $sql, LOG_DEBUG);
@@ -262,6 +262,7 @@ class Project extends CommonObject
             else
             {
                 $this->error = $this->db->lasterror();
+                $this->errors[] = $this->error;
                 dol_syslog(get_class($this)."::Update error -2 " . $this->error, LOG_ERR);
                 $result = -2;
             }