#68 added class structure

src/main/java/ru/ulstu/ping/model/Ping.java

@@ -0,0 +1,58 @@
+package ru.ulstu.ping.model;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.springframework.format.annotation.DateTimeFormat;
+import ru.ulstu.core.model.BaseEntity;
+import ru.ulstu.user.model.User;
+
+import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
+import java.util.Date;
+
+@Entity
+@Table(name = "ping")
+public class Ping extends BaseEntity {
+    @Temporal(value = TemporalType.TIMESTAMP)
+    @DateTimeFormat(pattern = "yyyy-MM-dd")
+    private Date date;
+
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "users_id")
+    private User user;
+
+    public Ping() {
+    }
+
+    public Ping(Date date, User user) {
+        this.date = date;
+        this.user = user;
+    }
+
+    public Ping(@JsonProperty("id") Integer id,
+                @JsonProperty("date") Date date,
+                @JsonProperty("user") User user) {
+        setId(id);
+        this.date = date;
+        this.user = user;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public void setDate(Date date) {
+        this.date = date;
+    }
+
+    public User getUser() {
+        return user;
+    }
+
+    public void setUser(User user) {
+        this.user = user;
+    }
+}

src/main/java/ru/ulstu/ping/repository/PingRepository.java

@@ -0,0 +1,7 @@
+package ru.ulstu.ping.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.ulstu.ping.model.Ping;
+
+public interface PingRepository extends JpaRepository<Ping, Integer> {
+}

src/main/java/ru/ulstu/ping/service/PingService.java

@@ -0,0 +1,13 @@
+package ru.ulstu.ping.service;
+
+import org.springframework.stereotype.Service;
+import ru.ulstu.ping.repository.PingRepository;
+
+@Service
+public class PingService {
+    private final PingRepository pingRepository;
+
+    public PingService(PingRepository pingRepository) {
+        this.pingRepository = pingRepository;
+    }
+}

src/main/resources/db/changelog-20190424_000000-schema.xml

@@ -10,15 +10,15 @@
             <column name="date" type="timestamp">
                 <constraints nullable="false"/>
             </column>
-            <column name="user_id" type="integer">
+            <column name="users_id" type="integer">
                 <constraints nullable="false"/>
             </column>
             <column name="conference_id" type="integer"/>
             <column name="version" type="integer"/>
         </createTable>
         <addPrimaryKey columnNames="id" constraintName="pk_ping" tableName="ping"/>
-        <addForeignKeyConstraint baseTableName="ping" baseColumnNames="user_id"
-                                 constraintName="fk_ping_user_id" referencedTableName="users"
+        <addForeignKeyConstraint baseTableName="ping" baseColumnNames="users_id"
+                                 constraintName="fk_ping_users_id" referencedTableName="users"
                                  referencedColumnNames="id"/>
         <addForeignKeyConstraint baseTableName="ping" baseColumnNames="conference_id"
                                  constraintName="fk_ping_conference_id" referencedTableName="conference"