diff --git a/src/nut/generators/abstractsqlgenerator.cpp b/src/nut/generators/abstractsqlgenerator.cpp
index a7d43ee..98c9459 100644
--- a/src/nut/generators/abstractsqlgenerator.cpp
+++ b/src/nut/generators/abstractsqlgenerator.cpp
@@ -616,10 +616,10 @@ QString AbstractSqlGenerator::selectCommand(const QString &tableName,
     QString sql = QStringLiteral("SELECT ") + selectText
                   + QStringLiteral(" FROM ") + fromText;
 
-    if (whereText != QStringLiteral(""))
+    if (!whereText.isEmpty())
         sql.append(QStringLiteral(" WHERE ") + whereText);
 
-    if (orderText != QStringLiteral(""))
+    if (!orderText.isEmpty())
         sql.append(QStringLiteral(" ORDER BY ") + orderText);
 
 //    for (int i = 0; i < _database->model().count(); i++)
@@ -648,7 +648,7 @@ QString AbstractSqlGenerator::selectCommand(const QString &tableName,
     QString sql = QStringLiteral("SELECT ") + selectText
                   + QStringLiteral(" FROM ") + fromText;
 
-    if (whereText != QStringLiteral(""))
+    if (!whereText.isEmpty())
         sql.append(QStringLiteral(" WHERE ") + whereText);
 
     for (int i = 0; i < _database->model().count(); i++)
diff --git a/src/nut/nut.pro b/src/nut/nut.pro
index 0b4bdeb..7beb4ab 100644
--- a/src/nut/nut.pro
+++ b/src/nut/nut.pro
@@ -46,9 +46,11 @@ HEADERS += \
     $$PWD/phrases/phrasedata.h \
     $$PWD/phrases/phrasedatalist.h \
     $$PWD/phrases/phraselist.h \
-    $$PWD/phrases/datephrase.h \
+    $$PWD/phrases/fieldphrase_date.h \
     $$PWD/table_p.h \
-    bulkinserter_p.h
+    $$PWD/bulkinserter_p.h \
+    $$PWD/phrases/fieldphrase_bool.h \
+    $$PWD/phrases/fieldphrase_qstring.h
 
 SOURCES += \
     $$PWD/generators/abstractsqlgenerator.cpp \
@@ -77,7 +79,9 @@ SOURCES += \
     $$PWD/phrases/phrasedata.cpp \
     $$PWD/phrases/phrasedatalist.cpp \
     $$PWD/phrases/phraselist.cpp \
-    $$PWD/phrases/datephrase.cpp
+    $$PWD/phrases/fieldphrase_date.cpp \
+    $$PWD/phrases/fieldphrase_bool.cpp \
+    $$PWD/phrases/fieldphrase_qstring.cpp
 
 load(qt_module)
 
diff --git a/src/nut/phrase.h b/src/nut/phrase.h
index 30fb6df..ab9d4f9 100644
--- a/src/nut/phrase.h
+++ b/src/nut/phrase.h
@@ -30,7 +30,9 @@
 #include <QtNut/phrasedata.h>
 #include <QtNut/assignmentphrase.h>
 #include <QtNut/numericphrase.h>
-#include <QtNut/datephrase.h>
+#include <QtNut/fieldphrase_date.h>
+#include <QtNut/fieldphrase_qstring.h>
+#include <QtNut/fieldphrase_bool.h>
 
 NUT_BEGIN_NAMESPACE
 
diff --git a/src/nut/phrases/abstractfieldphrase.cpp b/src/nut/phrases/abstractfieldphrase.cpp
index 616384e..4d51091 100644
--- a/src/nut/phrases/abstractfieldphrase.cpp
+++ b/src/nut/phrases/abstractfieldphrase.cpp
@@ -19,6 +19,7 @@
 **************************************************************************/
 
 #include "abstractfieldphrase.h"
+#include <QDebug>
 
 NUT_BEGIN_NAMESPACE
 
@@ -34,22 +35,26 @@ AbstractFieldPhrase::AbstractFieldPhrase(const char *className,
 AbstractFieldPhrase::AbstractFieldPhrase(const AbstractFieldPhrase &other)
 {
     data = other.data;
-    data->parents++;
+    data->ref.ref();
 }
 
 AbstractFieldPhrase::AbstractFieldPhrase(AbstractFieldPhrase &&other)
 {
     data = other.data;
-    data->parents++;
     other.data = nullptr;
 }
 
 AbstractFieldPhrase::~AbstractFieldPhrase()
 {
     if (data) {
-        --data->parents;
-        if (data->parents <= 0)
+        if (!data->ref.deref()) {
+            qDebug() << "deleted" << data->className
+                     << data->fieldName;
             delete data;
+        }
+        else
+            qDebug() << "more parents for" << data->className
+                     << data->fieldName;
     }
 }
 
@@ -87,6 +92,14 @@ AssignmentPhrase AbstractFieldPhrase::operator <<(const QVariant &other)
     return AssignmentPhrase(this, other);
 }
 
+void AbstractFieldPhrase::detach()
+{
+    auto clone = data->clone();
+    if (!data->ref.deref())
+        delete data;
+    data = clone;
+}
+
 #define AbstractFieldPhraseOperatorVariant(class, op, cond) \
 ConditionalPhrase class::operator op(const QVariant &other) \
 { \
diff --git a/src/nut/phrases/abstractfieldphrase.h b/src/nut/phrases/abstractfieldphrase.h
index 0745fa5..a4340be 100644
--- a/src/nut/phrases/abstractfieldphrase.h
+++ b/src/nut/phrases/abstractfieldphrase.h
@@ -80,6 +80,9 @@ public:
     AssignmentPhrase operator =(const QVariant &other);
     AssignmentPhrase operator =(const ConditionalPhrase &other);
     AssignmentPhrase operator <<(const QVariant &other);
+
+protected:
+    void detach();
 };
 
 NUT_END_NAMESPACE
diff --git a/src/nut/phrases/assignmentphrase.cpp b/src/nut/phrases/assignmentphrase.cpp
index 6b49426..f74d458 100644
--- a/src/nut/phrases/assignmentphrase.cpp
+++ b/src/nut/phrases/assignmentphrase.cpp
@@ -26,7 +26,7 @@ NUT_BEGIN_NAMESPACE
 
 AssignmentPhrase::AssignmentPhrase(PhraseData *d) : data(d)
 {
-    d->parents++;
+    d->ref.ref();
 }
 
 AssignmentPhrase::AssignmentPhrase(AbstractFieldPhrase *l, const QVariant r)
@@ -56,9 +56,8 @@ AssignmentPhrase::AssignmentPhrase(AssignmentPhrase *ph, const QVariant &v)
 
 AssignmentPhrase::~AssignmentPhrase()
 {
-    if (data)
-        if (!--data->parents)
-            delete data;
+    if (data && data->ref.deref())
+        delete data;
 }
 
 NUT_END_NAMESPACE
diff --git a/src/nut/phrases/assignmentphraselist.cpp b/src/nut/phrases/assignmentphraselist.cpp
index b65c8fa..08a1ef6 100644
--- a/src/nut/phrases/assignmentphraselist.cpp
+++ b/src/nut/phrases/assignmentphraselist.cpp
@@ -68,9 +68,9 @@ AssignmentPhraseList AssignmentPhraseList::operator &(const AssignmentPhrase
 
 AssignmentPhraseList::~AssignmentPhraseList()
 {
-    foreach (PhraseData *d, data)
-        if (!--d->parents)
-            delete d;
+//    foreach (PhraseData *d, data)
+//        if (!d->ref.deref())
+//            delete d;
 //    qDeleteAll(data);
     //    data.clear();
 }
@@ -78,7 +78,7 @@ AssignmentPhraseList::~AssignmentPhraseList()
 void AssignmentPhraseList::incAllDataParents()
 {
     foreach (PhraseData *d, data)
-        d->parents++;
+        d->ref.ref();
 }
 
 
diff --git a/src/nut/phrases/conditionalphrase.cpp b/src/nut/phrases/conditionalphrase.cpp
index 1fe6b27..248d6e9 100644
--- a/src/nut/phrases/conditionalphrase.cpp
+++ b/src/nut/phrases/conditionalphrase.cpp
@@ -18,6 +18,8 @@
 **
 **************************************************************************/
 
+#include <QDebug>
+
 #include "abstractfieldphrase.h"
 #include "conditionalphrase.h"
 #include "phrasedata.h"
@@ -30,21 +32,21 @@ ConditionalPhrase::ConditionalPhrase() : data(nullptr)
 ConditionalPhrase::ConditionalPhrase(const ConditionalPhrase &other)
 {
     data = other.data;
-    data->parents++;
-//    const_cast<ConditionalPhrase&>(other).data = 0;
+    data->ref.ref();
 }
 
 #ifdef Q_COMPILER_RVALUE_REFS
 ConditionalPhrase::ConditionalPhrase(ConditionalPhrase &&other)
 {
-    this->data = qMove(other.data);
+    data = other.data;
+    other.data = nullptr;
 }
 #endif
 
 ConditionalPhrase::ConditionalPhrase(const PhraseData *data)
 {
-    this->data = const_cast<PhraseData*>(data);
-    this->data->parents++;
+    data = const_cast<PhraseData*>(data);
+    data->ref.ref();
 }
 
 ConditionalPhrase::ConditionalPhrase(AbstractFieldPhrase *l,
@@ -104,8 +106,10 @@ ConditionalPhrase::~ConditionalPhrase()
 {
     if (data) {
         data->cleanUp();
-        if (!--data->parents)
+        if (!data->ref.deref()) {
+            qDebug() << "deleted for cond";
             delete data;
+        }
     }
 }
 
@@ -113,7 +117,7 @@ ConditionalPhrase &ConditionalPhrase::operator =(const ConditionalPhrase &other)
 {
     data = other.data;
     if (data)
-        data->parents++;
+        data->ref.ref();
     return *this;
 }
 
@@ -122,23 +126,6 @@ ConditionalPhrase ConditionalPhrase::operator ==(const QVariant &other)
     return ConditionalPhrase(this, PhraseData::Equal, other);
 }
 
-//ConditionalPhrase ConditionalPhrase::operator ==(const AbstractFieldPhrase &other)
-//{
-//    return ConditionalPhrase(this, PhraseData::Equal, other);
-//}
-
-//ConditionalPhrase ConditionalPhrase::operator &&(const ConditionalPhrase &other)
-//{
-//    return ConditionalPhrase(this, PhraseData::And,
-//                             const_cast<ConditionalPhrase&>(other));
-//}
-
-//ConditionalPhrase ConditionalPhrase::operator ||(const ConditionalPhrase &other)
-//{
-//    return ConditionalPhrase(this, PhraseData::Or,
-//                             const_cast<ConditionalPhrase&>(other));
-//}
-
 #define DECLARE_CONDITIONALPHRASE_OPERATORS_IMPL(op, cond) \
 ConditionalPhrase operator op(const ConditionalPhrase &l, \
                               const ConditionalPhrase &r) \
@@ -149,8 +136,8 @@ ConditionalPhrase operator op(const ConditionalPhrase &l, \
     p.data->operatorCond = cond; \
     p.data->left = l.data; \
     p.data->right = r.data; \
-    l.data->parents++;  \
-    r.data->parents++;  \
+    l.data->ref.ref();  \
+    r.data->ref.ref();  \
     return p; \
 } \
 ConditionalPhrase operator op(const ConditionalPhrase &l, \
@@ -162,8 +149,8 @@ ConditionalPhrase operator op(const ConditionalPhrase &l, \
     p.data->operatorCond = cond; \
     p.data->left = l.data; \
     p.data->right = r.data; \
-    l.data->parents++;  \
-    r.data->parents++;  \
+    l.data->ref.ref();  \
+    r.data = nullptr;  \
     return p; \
 } \
 ConditionalPhrase operator op(ConditionalPhrase &&l, \
@@ -175,8 +162,8 @@ ConditionalPhrase operator op(ConditionalPhrase &&l, \
     p.data->operatorCond = cond; \
     p.data->left = l.data; \
     p.data->right = r.data; \
-    l.data->parents++;  \
-    r.data->parents++;  \
+    r.data->ref.ref();  \
+    l.data = nullptr;  \
     return p; \
 } \
 ConditionalPhrase operator op(ConditionalPhrase &&l, ConditionalPhrase &&r) \
@@ -187,8 +174,8 @@ ConditionalPhrase operator op(ConditionalPhrase &&l, ConditionalPhrase &&r) \
     p.data->operatorCond = cond; \
     p.data->left = l.data; \
     p.data->right = r.data; \
-    l.data->parents++;  \
-    r.data->parents++;  \
+    l.data = nullptr; \
+    r.data = nullptr; \
     return p; \
 }
 
diff --git a/src/nut/phrases/fieldphrase.h b/src/nut/phrases/fieldphrase.h
index 7ef4b6d..5071668 100644
--- a/src/nut/phrases/fieldphrase.h
+++ b/src/nut/phrases/fieldphrase.h
@@ -50,29 +50,6 @@ Q_OUTOFLINE_TEMPLATE ConditionalPhrase FieldPhrase<T>::operator ==(const QVarian
     return ConditionalPhrase(this, PhraseData::Equal, other);
 }
 
-
-template<>
-class FieldPhrase<QString> : public AbstractFieldPhrase
-{
-public:
-    FieldPhrase(const char *className, const char *s) :
-        AbstractFieldPhrase(className, s)
-    {}
-
-    ConditionalPhrase like(const QString &term) {
-        return ConditionalPhrase(this, PhraseData::Like, term);
-    }
-
-    ConditionalPhrase contains(const QString &term) {
-        return ConditionalPhrase(this, PhraseData::Like,
-                                 QVariant(QStringLiteral("%") + term + QStringLiteral("%")));
-    }
-
-    AssignmentPhrase operator =(const QVariant &v) {
-        return AssignmentPhrase(this, v);
-    }
-};
-
 //Date and time
 #define CONDITIONAL_VARIANT_METHOD(name, cond) \
     ConditionalPhrase name(int val) \
@@ -80,31 +57,6 @@ public:
         return ConditionalPhrase(this, cond, val); \
     }
 
-template<>
-class FieldPhrase<bool> : public AbstractFieldPhrase
-{
-public:
-    FieldPhrase(const char *className, const char *s) :
-        AbstractFieldPhrase(className, s)
-    {}
-
-    AssignmentPhrase operator =(const bool &other) {
-        return AssignmentPhrase(this, other);
-    }
-
-    FieldPhrase<bool> operator !()
-    {
-        FieldPhrase<bool> f(data->className, data->fieldName);
-//        f.data = new PhraseData(data);
-        f.data->isNot = !data->isNot;
-        return f;
-    }
-
-    operator ConditionalPhrase()
-    {
-        return ConditionalPhrase(this, PhraseData::Equal, !data->isNot);
-    }
-};
 
 NUT_END_NAMESPACE
 
diff --git a/src/nut/phrases/fieldphrase_bool.cpp b/src/nut/phrases/fieldphrase_bool.cpp
new file mode 100644
index 0000000..c8d6716
--- /dev/null
+++ b/src/nut/phrases/fieldphrase_bool.cpp
@@ -0,0 +1,6 @@
+#include "fieldphrase_bool.h"
+
+NUT_BEGIN_NAMESPACE
+
+
+NUT_END_NAMESPACE
diff --git a/src/nut/phrases/fieldphrase_bool.h b/src/nut/phrases/fieldphrase_bool.h
new file mode 100644
index 0000000..ad3e111
--- /dev/null
+++ b/src/nut/phrases/fieldphrase_bool.h
@@ -0,0 +1,38 @@
+#ifndef NUT_FIELDPHRASE_BOOL_H
+#define NUT_FIELDPHRASE_BOOL_H
+
+#include <QtNut/defines.h>
+#include <QtNut/fieldphrase.h>
+#include <QtNut/fieldphrase.h>
+
+NUT_BEGIN_NAMESPACE
+
+template<>
+class FieldPhrase<bool> : public AbstractFieldPhrase
+{
+public:
+    FieldPhrase(const char *className, const char *s) :
+          AbstractFieldPhrase(className, s)
+    {}
+
+    AssignmentPhrase operator =(const bool &other) {
+        return AssignmentPhrase(this, other);
+    }
+
+    FieldPhrase<bool> operator !()
+    {
+        FieldPhrase<bool> f(data->className, data->fieldName);
+        //        f.data = new PhraseData(data);
+        f.data->isNot = !data->isNot;
+        return f;
+    }
+
+    operator ConditionalPhrase()
+    {
+        return ConditionalPhrase(this, PhraseData::Equal, !data->isNot);
+    }
+};
+
+NUT_END_NAMESPACE
+
+#endif // NUT_FIELDPHRASE_BOOL_H
diff --git a/src/nut/phrases/datephrase.cpp b/src/nut/phrases/fieldphrase_date.cpp
similarity index 99%
rename from src/nut/phrases/datephrase.cpp
rename to src/nut/phrases/fieldphrase_date.cpp
index 0355377..aae3bf4 100644
--- a/src/nut/phrases/datephrase.cpp
+++ b/src/nut/phrases/fieldphrase_date.cpp
@@ -18,7 +18,7 @@
 **
 **************************************************************************/
 
-#include "datephrase.h"
+#include "fieldphrase_date.h"
 
 NUT_BEGIN_NAMESPACE
 
diff --git a/src/nut/phrases/datephrase.h b/src/nut/phrases/fieldphrase_date.h
similarity index 100%
rename from src/nut/phrases/datephrase.h
rename to src/nut/phrases/fieldphrase_date.h
diff --git a/src/nut/phrases/fieldphrase_qstring.cpp b/src/nut/phrases/fieldphrase_qstring.cpp
new file mode 100644
index 0000000..5692eed
--- /dev/null
+++ b/src/nut/phrases/fieldphrase_qstring.cpp
@@ -0,0 +1,2 @@
+#include "fieldphrase_qstring.h"
+
diff --git a/src/nut/phrases/fieldphrase_qstring.h b/src/nut/phrases/fieldphrase_qstring.h
new file mode 100644
index 0000000..ede4490
--- /dev/null
+++ b/src/nut/phrases/fieldphrase_qstring.h
@@ -0,0 +1,39 @@
+#ifndef NUT_FIELDPHRASE_QSTRING_H
+#define NUT_FIELDPHRASE_QSTRING_H
+
+#include <QtNut/defines.h>
+#include <QtNut/abstractfieldphrase.h>
+#include <QtNut/fieldphrase.h>
+
+NUT_BEGIN_NAMESPACE
+
+template<>
+class FieldPhrase<QString> : public AbstractFieldPhrase
+{
+public:
+    FieldPhrase(const char *className, const char *s)
+        : AbstractFieldPhrase(className, s)
+    {}
+
+    ConditionalPhrase like(const QString &term)
+    {
+        return ConditionalPhrase(this, PhraseData::Like, term);
+    }
+
+    ConditionalPhrase contains(const QString &term)
+    {
+        return ConditionalPhrase(this,
+                                 PhraseData::Like,
+                                 QVariant(QStringLiteral("%") + term
+                                          + QStringLiteral("%")));
+    }
+
+    AssignmentPhrase operator=(const QVariant &v)
+    {
+        return AssignmentPhrase(this, v);
+    }
+};
+
+NUT_END_NAMESPACE
+
+#endif // NUT_FIELDPHRASE_QSTRING_H
diff --git a/src/nut/phrases/phrasedata.cpp b/src/nut/phrases/phrasedata.cpp
index 2316fd4..cc04aca 100644
--- a/src/nut/phrases/phrasedata.cpp
+++ b/src/nut/phrases/phrasedata.cpp
@@ -22,52 +22,57 @@
 
 NUT_BEGIN_NAMESPACE
 
-PhraseData::PhraseData() :
-    className(""), fieldName(""),
-    type(Field), operatorCond(NotAssign),
-    left(nullptr), right(nullptr), operand(QVariant::Invalid), isNot(false), parents(1)
+PhraseData::PhraseData()
+    : className(""), fieldName(""), type(Field), operatorCond(NotAssign),
+      left(nullptr), right(nullptr), operand(QVariant::Invalid), isNot(false),
+      ref(1)
 { }
 
-PhraseData::PhraseData(const char *className, const char *fieldName) :
-    className(className), fieldName(fieldName),
-    type(Field), operatorCond(NotAssign),
-    left(nullptr), right(nullptr), operand(QVariant::Invalid), isNot(false), parents(1)
+PhraseData::PhraseData(const char *className, const char *fieldName)
+    : className(className), fieldName(fieldName), type(Field),
+      operatorCond(NotAssign), left(nullptr), right(nullptr),
+      operand(QVariant::Invalid), isNot(false), ref(1)
 { }
 
 PhraseData::PhraseData(PhraseData *l, PhraseData::Condition o)
-    : className(nullptr), fieldName(nullptr),
-      type(WithoutOperand), operatorCond(o), left(l), right(nullptr),
-      isNot(false), parents(1)
+    : className(nullptr), fieldName(nullptr), type(WithoutOperand),
+      operatorCond(o), left(l), right(nullptr), isNot(false), ref(1)
 {
-    l->parents++;
+    l->ref.ref();
 }
 
-PhraseData::PhraseData(PhraseData *l, PhraseData::Condition o,
-                       PhraseData *r)
-    : className(nullptr), fieldName(nullptr),
-      type(WithOther), operatorCond(o),
-      left(l), right(r),
-      isNot(false), parents(1)
+PhraseData::PhraseData(PhraseData *l, PhraseData::Condition o, PhraseData *r)
+    : className(nullptr), fieldName(nullptr), type(WithOther), operatorCond(o),
+      left(l), right(r), isNot(false), ref(1)
 {
-    l->parents++;
-    r->parents++;
+    l->ref.ref();
+    r->ref.ref();
 }
 
 PhraseData::PhraseData(PhraseData *l, PhraseData::Condition o, QVariant r)
-    : className(nullptr), fieldName(nullptr),
-      type(WithVariant), operatorCond(o), left(l),
-      right(nullptr), operand(r), isNot(false), parents(1)
+    : className(nullptr), fieldName(nullptr), type(WithVariant),
+      operatorCond(o), left(l), right(nullptr), operand(r), isNot(false),
+      ref(1)
 { }
 
+PhraseData::~PhraseData()
+{
+//    if (left && !left->ref.deref())
+//        delete left;
+
+//    if (right && !right->ref.deref())
+//        delete right;
+}
+
 PhraseData *PhraseData::operator =(PhraseData *other)
 {
-    other->parents++;
+    other->ref.ref();
     return other;
 }
 
 PhraseData &PhraseData::operator =(PhraseData &other)
 {
-    other.parents++;
+    other.ref.ref();
     return other;
 }
 
@@ -81,6 +86,26 @@ void PhraseData::cleanUp()
 {
 }
 
+PhraseData *PhraseData::clone() const
+{
+    auto c = new PhraseData;
+    c->className = className;
+    c->fieldName = fieldName;
+
+    c->type = type;
+
+    c->operatorCond = operatorCond;
+
+    c->left = left;
+    c->right = right;
+
+    c->operand = operand;
+    c->isNot = isNot;
+//    c->parents = parents;
+
+    return c;
+}
+
 void PhraseData::cleanUp(PhraseData *d)
 {
     if (d->left)
diff --git a/src/nut/phrases/phrasedata.h b/src/nut/phrases/phrasedata.h
index 0af3d7b..11fe522 100644
--- a/src/nut/phrases/phrasedata.h
+++ b/src/nut/phrases/phrasedata.h
@@ -97,24 +97,25 @@ public:
 
     QVariant operand;
     bool isNot;
-    quint16 parents;
+//    quint16 parents;
+
+    mutable QAtomicInt ref;
 
     PhraseData();
     PhraseData(const char *className, const char *fieldName);
     PhraseData(PhraseData *l, Condition o);
     PhraseData(PhraseData *l, Condition o, PhraseData *r);
     PhraseData(PhraseData *l, Condition o, QVariant r);
-//    explicit PhraseData(const PhraseData &other);
-//    explicit PhraseData(const PhraseData *other);
+
+    virtual ~PhraseData();
 
     PhraseData *operator =(PhraseData *other);
     PhraseData &operator =(PhraseData &other);
 
     QString toString() const;
 
-    ~PhraseData() = default;
-
     void cleanUp();
+    PhraseData *clone() const;
 private:
     void cleanUp(PhraseData *d);
 };
diff --git a/src/nut/phrases/phrasedatalist.cpp b/src/nut/phrases/phrasedatalist.cpp
index e1858ed..1d359b1 100644
--- a/src/nut/phrases/phrasedatalist.cpp
+++ b/src/nut/phrases/phrasedatalist.cpp
@@ -37,14 +37,14 @@ PhraseDataList::PhraseDataList(const PhraseDataList &other) : QList<PhraseData*>
 
 void PhraseDataList::append(PhraseData *d)
 {
-    d->parents++;
+    d->ref.ref();
     QList<PhraseData*>::append(d);
 }
 
 void PhraseDataList::append(QList<PhraseData *> &dl)
 {
     foreach (PhraseData *d, dl)
-        d->parents++;
+        d->ref.ref();
     QList<PhraseData*>::append(dl);
 }
 
@@ -53,7 +53,7 @@ PhraseDataList::~PhraseDataList()
     QList<PhraseData*>::iterator i;
     for (i = begin(); i != end(); ++i) {
         (*i)->cleanUp();
-        if (!--(*i)->parents)
+        if (!(*i)->ref.deref())
             delete *i;
     }
 }
diff --git a/tests/auto/tst_phrases/tst_phrases.cpp b/tests/auto/tst_phrases/tst_phrases.cpp
index d319c58..bdb7ed3 100644
--- a/tests/auto/tst_phrases/tst_phrases.cpp
+++ b/tests/auto/tst_phrases/tst_phrases.cpp
@@ -3,6 +3,7 @@
 
 #include "tst_phrases.h"
 #include "phrase.h"
+#include "sqlitegenerator.h"
 
 using namespace Nut;
 
@@ -17,11 +18,15 @@ void PhrasesTest::initTestCase()
 
 void PhrasesTest::no1()
 {
-    FieldPhrase<int> id("main", "id");
-    FieldPhrase<QString> name("main", "name");
-    FieldPhrase<QString> last_name("main", "last_name");
-    FieldPhrase<QDate> date("main", "date");
-    auto w = (id == 4 && name == "hi");
+    {
+        FieldPhrase<int> id("main", "id");
+        FieldPhrase<QString> name("main", "name");
+        FieldPhrase<QString> last_name("main", "last_name");
+        FieldPhrase<QDate> date("main", "date");
+        auto w = (id == 4 && name == QStringLiteral("hi"));
+
+        SqliteGenerator g;
+    }
 }
 
 void PhrasesTest::numeric()