Improvements to data model

Set up connection parameters for local postgres db. Updated schema in
order not to cause clashes with reserved SQL tokens.

.idea/jarRepositories.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="MavenRepo" />
+      <option name="name" value="MavenRepo" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
+  </component>
+</project>

.idea/misc.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="false" project-jdk-name="12.0.1" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="false" project-jdk-name="13" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

build.gradle

@@ -13,12 +13,14 @@ repositories {
 }
 
 dependencies {
+	compile 'org.hibernate.javax.persistence:hibernate-jpa-2.1-api:1.0.0.Final'
 	implementation 'org.springframework.boot:spring-boot-starter'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+	implementation 'org.postgresql:postgresql'
 	implementation('org.springframework.boot:spring-boot-starter-web') {
 		exclude group: 'org.springframework.boot', module: 'spring-boot-starter-json'
 	}
-	implementation 'com.google.code.gson:gson:2.8.4'
+	implementation 'com.google.code.gson:gson'
 	testImplementation('org.springframework.boot:spring-boot-starter-test') {
 		exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
 	}

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/Light.java

@@ -1,5 +1,6 @@
 package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
 
+import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.Inheritance;
 import javax.persistence.InheritanceType;
@@ -7,6 +8,7 @@ import javax.persistence.InheritanceType;
 @Entity
 @Inheritance(strategy = InheritanceType.JOINED)
 public class Light extends OutputDevice {
+    @Column(name="light_on")
     boolean on;
 
     public Light() {

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/User.java

@@ -3,7 +3,7 @@ package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
 import javax.persistence.*;
 import java.util.Set;
 
-@Entity
+@Entity(name = "smarthutuser")
 public class User {
 
     @Id

src/main/resources/application.properties

@@ -1 +1,12 @@
 spring.http.converters.preferred-json-mapper=gson
+spring.datasource.url=jdbc:postgresql://localhost:5432/smarthut
+spring.datasource.username=postgres
+spring.datasource.password=
+
+# Hibernate properties
+spring.jpa.database=POSTGRESQL
+spring.jpa.show-sql=true
+spring.jpa.hibernate.ddl-auto=create-drop
+spring.jpa.hibernate.naming.implicit-strategy=org.hibernate.boot.model.naming.ImplicitNamingStrategyJpaCompliantImpl
+spring.jpa.properties.hibernate.format_sql=true
+,