diff -r 28f0e43e9f08 -r 94b3def5d778 src/MainWindow.cpp
--- a/src/MainWindow.cpp	Sun Jan 29 14:40:43 2023 +0100
+++ b/src/MainWindow.cpp	Mon Jan 30 17:05:13 2023 +0100
@@ -21,6 +21,7 @@
 #include "InventoryFermentables.h"
 #include "InventoryHops.h"
 #include "InventoryYeasts.h"
+#include "InventoryYeastPacks.h"
 #include "InventoryMiscs.h"
 #include "InventoryWaters.h"
 #include "InventoryEquipments.h"
@@ -165,10 +166,12 @@
 {
     QSqlQuery query1, query2, query3, query4;
     int	count = 0;
+    bool added_packs = false;
 
     qDebug() << "updateDatabase() start";
 
     /*
+     * Version 0.4.0.
      * Make sure we have the inventory_yeastpack with initial records.
      */
     query1.exec("CREATE TABLE IF NOT EXISTS `inventory_yeastpack` ("
@@ -182,8 +185,10 @@
   		"`viability` double NOT NULL DEFAULT 0.99,"
 		"`max` tinyint(4) NOT NULL DEFAULT 100,"
   		"`size` float NOT NULL DEFAULT 0,"
+		"`used` int(11) NOT NULL DEFAULT 0,"
   		"PRIMARY KEY (`record`),"
   		"UNIQUE KEY `uuid` (`uuid`),"
+		"UNIQUE KEY `package` (`laboratory`,`form`,`package`),"
   		"KEY `lab_form` (`laboratory`,`form`) USING BTREE"
 		") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Yeast packages data'");
     if (query1.lastError().isValid()) {
@@ -206,17 +211,31 @@
 	    	/* Should succeed */
 
 	    	query4.prepare("INSERT INTO inventory_yeastpack SET uuid=:uuid, laboratory=:laboratory, "
-			   "form=:form, package=:package, cells=:cells");
+			   "form=:form, package=:package, cells=:cells, viability=:viability, max=:max");
 	    	query4.bindValue(":uuid", QUuid::createUuid().toString().mid(1, 36));
 	    	query4.bindValue(":laboratory", query1.value("laboratory").toString());
 	    	query4.bindValue(":form", query1.value("form").toInt());
 	    	query4.bindValue(":package", g_yeast_forms[query1.value("form").toInt()]);
 	    	query4.bindValue(":cells", query3.value("cells").toDouble());
+		switch (query1.value("form").toInt()) {
+		    case YEAST_FORMS_LIQUID:	query4.bindValue(":viability", 0.80);
+						query4.bindValue(":max", 97);
+						break;
+		    case YEAST_FORMS_DRY:	query4.bindValue(":viability", 0.998);
+						query4.bindValue(":max", 100);
+						break;
+		    case YEAST_FORMS_DRIED:	query4.bindValue(":viability", 0.92);
+						query4.bindValue(":max", 100);
+						break;
+		    default:			query4.bindValue(":viability", 0.99);
+						query4.bindValue(":max", 97);
+		}
 	    	query4.exec();
 	    	if (query4.lastError().isValid()) {
 		    qWarning() << "  add yeastpack" << query4.lastError();
 	    	} else {
 		    count++;
+		    added_packs = true;
 	    	}
 	    }
     	}
@@ -226,17 +245,14 @@
 }
 
 
-/*
- * On the server where bmsd runs, there is a crontask.php that does these checks
- * too. Here we do some of the same commands so that we have the results sooner.
- * Currently this takes 6 to 9 mSecs.
- */
 void MainWindow::maintDataBase()
 {
-    QSqlQuery query;
+    QSqlQuery query, query1;
 
     /*
-     * Upgrade package values.
+     * On the server where bmsd runs, there is a crontask.php that does these checks
+     * too. Here we do some of the same commands so that we have the results sooner.
+     * Currently this takes 6 to 9 mSecs.
      */
     query.exec("UPDATE products SET package_volume = bottle_amount + keg_amount WHERE package_volume='0'");
     if (query.numRowsAffected())
@@ -267,6 +283,27 @@
     query.exec("UPDATE products SET stage=9 WHERE stage = 8 AND DATEDIFF(CURDATE(), package_date) > 41");
     if (query.numRowsAffected())
 	qInfo() << "Updated" << query.numRowsAffected() << "products to stage 9 (Taste)";
+
+    /*
+     * Count and update references in inventory_yeastpack to inventory_yeasts
+     */
+    query.exec("SELECT laboratory,form FROM inventory_yeastpack");
+    while (query.next()) {
+	query1.prepare("SELECT COUNT(*) FROM inventory_yeasts WHERE laboratory=:laboratory AND form=:form");
+	query1.bindValue(":laboratory", query.value("laboratory").toString());
+        query1.bindValue(":form", query.value("form").toInt());
+	query1.exec();
+	if (! query1.first()) {
+	    qWarning() << "SELECT COUNT(*) FROM inventory_yeasts";
+	} else {
+	    int count = query1.value("COUNT(*)").toInt();
+	    query1.prepare("UPDATE inventory_yeastpack SET used=:used WHERE laboratory=:laboratory AND form=:form");
+	    query1.bindValue(":used", count);
+	    query1.bindValue(":laboratory", query.value("laboratory").toString());
+            query1.bindValue(":form", query.value("form").toInt());
+	    query1.exec();
+	}
+    }
 }
 
 
@@ -709,6 +746,28 @@
 }
 
 
+void MainWindow::fromInventoryYeastPacks()
+{
+    ui->mainStack->setCurrentIndex(-1);
+    ui->mainStack->removeWidget(InventoryYeastPacksWindow);
+    delete InventoryYeastPacksWindow;
+    setWindowTitle( QString("BMSapp - %1").arg(VERSIONSTRING) );
+    ui->menuBar->setVisible(true);
+    statusBar()->clearMessage();
+}
+
+
+void MainWindow::on_actionYeastPacks_triggered()
+{
+    InventoryYeastPacksWindow = new InventoryYeastPacks(this);
+    int index = ui->mainStack->count();
+    ui->mainStack->addWidget(InventoryYeastPacksWindow);
+    ui->mainStack->setCurrentIndex(index);
+    setWindowTitle(QString("BMSapp - %1 - Inventory Yeasts").arg(VERSIONSTRING));
+    ui->menuBar->setVisible(false);
+}
+
+
 void MainWindow::fromInventoryMiscs()
 {
     ui->mainStack->setCurrentIndex(-1);