Poprawka konfiguracji

PC27-Hibernate/src/main/java/META-INF/persistence.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <persistence version="2.2" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd">
-	<persistence-unit name="PC27-Hibernate">
+	<persistence-unit name="sklep" transaction-type="RESOURCE_LOCAL">
 		<class>sklep.model.Customer</class>
 		<class>sklep.model.OrderProduct</class>
 		<class>sklep.model.OrderProductPK</class>
 		<class>sklep.model.Order</class>
 		<class>sklep.model.Product</class>
+		<properties>
+			<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/sklep"/>
+			<property name="javax.persistence.jdbc.user" value="kurs"/>
+			<property name="javax.persistence.jdbc.password" value="abc123"/>
+			<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver"/>
+			<property name="hibernate.show_sql" value="true"/> <!-- pokazywanie zapytań SQL -->
+		</properties>
 	</persistence-unit>
 </persistence>

PC27-Hibernate/src/main/java/sklep/model/OrderProduct.java

@@ -28,12 +28,12 @@ public class OrderProduct implements Serializable {
 
 	//bi-directional many-to-one association to Order
 	@ManyToOne
-	@JoinColumn(name="order_id")
+	@JoinColumn(name="order_id", insertable=false, updatable=false)
 	private Order order;
 
 	//uni-directional many-to-one association to Product
 	@ManyToOne
-	@JoinColumn(name="product_id")
+	@JoinColumn(name="product_id", insertable=false, updatable=false)
 	private Product product;
 
 	public OrderProduct() {