From b0060795b5ea68f27530dc06f59eae333161cd03 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20=C3=81ngel=20San=20Mart=C3=ADn?=
 <luisangelsm@gmail.com>
Date: Sun, 24 Jan 2016 10:52:12 +0100
Subject: [PATCH] added new method for adding constraints to an existing table

---
 YACReaderLibrary/db/data_base_management.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/YACReaderLibrary/db/data_base_management.cpp b/YACReaderLibrary/db/data_base_management.cpp
index 5a31ce94..be008518 100644
--- a/YACReaderLibrary/db/data_base_management.cpp
+++ b/YACReaderLibrary/db/data_base_management.cpp
@@ -620,6 +620,19 @@ bool DataBaseManagement::addColumns(const QString &tableName, const QStringList
     return returnValue;
 }
 
+bool DataBaseManagement::addConstraint(const QString &tableName, const QString &constraint, const QSqlDatabase &db)
+{
+    QString sql = "ALTER TABLE %1 ADD %2";
+    bool returnValue = true;
+
+    QSqlQuery alterTable(db);
+    alterTable.prepare(sql.arg(tableName).arg(constraint));
+    alterTable.exec();
+    returnValue = returnValue && (alterTable.numRowsAffected() > 0);
+
+    return returnValue;
+}
+
 void DataBaseManagement::bindString(const QString & name, const QSqlRecord & record, QSqlQuery & query)
 {
 	if(!record.value(name).isNull())