10 files changed, 59 insertions, 3 deletions
diff --git a/src/sql/configure.json b/src/sql/configure.json
new file mode 100644
index 0000000000..8fdc27e3a2
--- /dev/null
+++ b/src/sql/configure.json
@@ -0,0 +1,22 @@
+{
+    "module": "sql",
+    "depends": [
+        "core"
+    ],
+
+    "features": {
+        "sqlmodel": {
+            "label": "SQL item models",
+            "purpose": "Provides item model classes backed by SQL databases.",
+            "condition": "features.itemmodel",
+            "output": [ "publicFeature" ]
+        }
+    },
+
+    "summary": [
+        {
+            "section": "Qt Sql",
+            "entries": [ "sqlmodel" ]
+        }
+    ]
+}
diff --git a/src/sql/kernel/qtsqlglobal.h b/src/sql/kernel/qtsqlglobal.h
index d421adc84b..ec79e8da1e 100644
--- a/src/sql/kernel/qtsqlglobal.h
+++ b/src/sql/kernel/qtsqlglobal.h
@@ -41,6 +41,7 @@
 #define QTSQLGLOBAL_H
 
 #include <QtCore/qglobal.h>
+#include <QtSql/qtsql-config.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/sql/kernel/qtsqlglobal_p.h b/src/sql/kernel/qtsqlglobal_p.h
index ab45f6cd38..78a2461257 100644
--- a/src/sql/kernel/qtsqlglobal_p.h
+++ b/src/sql/kernel/qtsqlglobal_p.h
@@ -53,5 +53,6 @@
 
 #include <QtSql/qtsqlglobal.h>
 #include <QtCore/private/qglobal_p.h>
+#include <QtSql/private/qtsql-config_p.h>
 
 #endif // QTSQLGLOBAL_P_H
diff --git a/src/sql/models/qsqlquerymodel.h b/src/sql/models/qsqlquerymodel.h
index 869a5f030c..427b369ae2 100644
--- a/src/sql/models/qsqlquerymodel.h
+++ b/src/sql/models/qsqlquerymodel.h
@@ -44,8 +44,9 @@
 #include <QtCore/qabstractitemmodel.h>
 #include <QtSql/qsqldatabase.h>
 
-QT_BEGIN_NAMESPACE
+QT_REQUIRE_CONFIG(sqlmodel);
 
+QT_BEGIN_NAMESPACE
 
 class QSqlQueryModelPrivate;
 class QSqlError;
diff --git a/src/sql/models/qsqlquerymodel_p.h b/src/sql/models/qsqlquerymodel_p.h
index ffc34b9f95..76aaf00c88 100644
--- a/src/sql/models/qsqlquerymodel_p.h
+++ b/src/sql/models/qsqlquerymodel_p.h
@@ -60,6 +60,8 @@
 #include "QtCore/qvarlengtharray.h"
 #include "QtCore/qvector.h"
 
+QT_REQUIRE_CONFIG(sqlmodel);
+
 QT_BEGIN_NAMESPACE
 
 class QSqlQueryModelPrivate: public QAbstractItemModelPrivate
diff --git a/src/sql/models/qsqlrelationaldelegate.h b/src/sql/models/qsqlrelationaldelegate.h
index 53f43a4acb..e8ae5a229d 100644
--- a/src/sql/models/qsqlrelationaldelegate.h
+++ b/src/sql/models/qsqlrelationaldelegate.h
@@ -42,6 +42,8 @@
 
 #include <QtSql/qtsqlglobal.h>
 
+QT_REQUIRE_CONFIG(sqlmodel);
+
 #ifdef QT_WIDGETS_LIB
 
 #include <QtWidgets/qitemdelegate.h>
@@ -53,7 +55,7 @@
 #endif
 #include <QtSql/qsqldriver.h>
 #include <QtSql/qsqlrelationaltablemodel.h>
-
+#include <QtCore/qmetaobject.h>
 QT_BEGIN_NAMESPACE
 
 
@@ -97,6 +99,27 @@ QWidget *createEditor(QWidget *aParent,
     return combo;
 }
 
+    void setEditorData(QWidget *editor, const QModelIndex &index) const override
+    {
+        if (!index.isValid())
+            return;
+
+        if (qobject_cast<QComboBox *>(editor)) {
+            // Taken from QItemDelegate::setEditorData() as we need
+            // to present the DisplayRole and not the EditRole which
+            // is the id reference to the related model
+            QVariant v = index.data(Qt::DisplayRole);
+            QByteArray n = editor->metaObject()->userProperty().name();
+            if (!n.isEmpty()) {
+                if (!v.isValid())
+                    v = QVariant(editor->property(n).userType(), nullptr);
+                editor->setProperty(n, v);
+                return;
+            }
+        }
+        QItemDelegate::setEditorData(editor, index);
+    }
+
 void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override
 {
     if (!index.isValid())
diff --git a/src/sql/models/qsqlrelationaltablemodel.h b/src/sql/models/qsqlrelationaltablemodel.h
index 90b7a6481f..555755009c 100644
--- a/src/sql/models/qsqlrelationaltablemodel.h
+++ b/src/sql/models/qsqlrelationaltablemodel.h
@@ -45,6 +45,8 @@
 
 #include <QtCore/qtypeinfo.h>
 
+QT_REQUIRE_CONFIG(sqlmodel);
+
 QT_BEGIN_NAMESPACE
 
 
diff --git a/src/sql/models/qsqltablemodel.h b/src/sql/models/qsqltablemodel.h
index 77b0517c74..7acc7dc94d 100644
--- a/src/sql/models/qsqltablemodel.h
+++ b/src/sql/models/qsqltablemodel.h
@@ -44,6 +44,8 @@
 #include <QtSql/qsqldatabase.h>
 #include <QtSql/qsqlquerymodel.h>
 
+QT_REQUIRE_CONFIG(sqlmodel);
+
 QT_BEGIN_NAMESPACE
 
 
diff --git a/src/sql/models/qsqltablemodel_p.h b/src/sql/models/qsqltablemodel_p.h
index 490bb48a24..faa1b30803 100644
--- a/src/sql/models/qsqltablemodel_p.h
+++ b/src/sql/models/qsqltablemodel_p.h
@@ -56,6 +56,8 @@
 #include "QtSql/qsqlindex.h"
 #include "QtCore/qmap.h"
 
+QT_REQUIRE_CONFIG(sqlmodel);
+
 QT_BEGIN_NAMESPACE
 
 class Q_AUTOTEST_EXPORT QSqlTableModelPrivate: public QSqlQueryModelPrivate
diff --git a/src/sql/sql.pro b/src/sql/sql.pro
index 821ae1c9b9..1cd2a05250 100644
--- a/src/sql/sql.pro
+++ b/src/sql/sql.pro
@@ -11,7 +11,7 @@ PRECOMPILED_HEADER = ../corelib/global/qt_pch.h
 SQL_P = sql
 
 include(kernel/kernel.pri)
-include(models/models.pri)
+qtConfig(sqlmodel): include(models/models.pri)
 
 MODULE_PLUGIN_TYPES = \
     sqldrivers