add paper authors

src/main/java/ru/ulstu/paper/model/Paper.java

@@ -3,9 +3,11 @@ package ru.ulstu.paper.model;
 import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.file.model.FileData;
+import ru.ulstu.user.model.User;
 
 import javax.persistence.*;
 import java.util.Date;
+import java.util.List;
 
 @Entity
 public class Paper extends BaseEntity {
@@ -43,6 +45,9 @@ public class Paper extends BaseEntity {
     @JoinColumn(name = "file_id")
     private FileData fileData;
 
+    @ManyToMany
+    private List<User> authors;
+
     public PaperStatus getStatus() {
         return status;
     }
@@ -98,4 +103,12 @@ public class Paper extends BaseEntity {
     public void setTitle(String title) {
         this.title = title;
     }
+
+    public List<User> getAuthors() {
+        return authors;
+    }
+
+    public void setAuthors(List<User> authors) {
+        this.authors = authors;
+    }
 }

src/main/java/ru/ulstu/paper/model/PaperDto.java

@@ -2,8 +2,12 @@ package ru.ulstu.paper.model;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import ru.ulstu.user.model.UserDto;
 
 import java.util.Date;
+import java.util.List;
+
+import static ru.ulstu.core.util.StreamApiUtils.convert;
 
 public class PaperDto {
     private final Integer id;
@@ -17,6 +21,7 @@ public class PaperDto {
     private final Integer fileId;
     private final String fileName;
     private final Date fileCreateDate;
+    private final List<UserDto> authors;
 
     @JsonCreator
     public PaperDto(@JsonProperty("id") Integer id,
@@ -26,7 +31,8 @@ public class PaperDto {
                     @JsonProperty("updateDate") Date updateDate,
                     @JsonProperty("comment") String comment,
                     @JsonProperty("locked") Boolean locked,
-                    @JsonProperty("tmpFileName") String tmpFileName) {
+                    @JsonProperty("tmpFileName") String tmpFileName,
+                    @JsonProperty("authors") List<UserDto> authors) {
         this.id = id;
         this.title = title;
         this.status = status;
@@ -38,6 +44,7 @@ public class PaperDto {
         this.fileId = null;
         this.fileName = null;
         this.fileCreateDate = null;
+        this.authors = authors;
     }
 
     public PaperDto(Paper paper) {
@@ -52,6 +59,7 @@ public class PaperDto {
         this.fileId = paper.getFileData() == null ? null : paper.getFileData().getId();
         this.fileName = paper.getFileData() == null ? null : paper.getFileData().getName();
         this.fileCreateDate = paper.getFileData() == null ? null : paper.getFileData().getCreateDate();
+        this.authors = convert(paper.getAuthors(), UserDto::new);
     }
 
     public Integer getId() {
@@ -97,4 +105,8 @@ public class PaperDto {
     public Date getFileCreateDate() {
         return fileCreateDate;
     }
+
+    public List<UserDto> getAuthors() {
+        return authors;
+    }
 }

src/main/resources/db/changelog-20180505_000000-schema.xml

@@ -34,4 +34,16 @@
                                  constraintName="fk_paper_file" referencedTableName="file"
                                  referencedColumnNames="id"/>
     </changeSet>
+    <changeSet author="orion" id="20180505_000000-2">
+        <createTable tableName="paper_authors">
+            <column name="paper_id" type="integer"/>
+            <column name="authors_id" type="integer"/>
+        </createTable>
+        <addForeignKeyConstraint baseTableName="paper_authors" baseColumnNames="paper_id"
+                                 constraintName="fk_paper_paper_authors" referencedTableName="paper"
+                                 referencedColumnNames="id"/>
+        <addForeignKeyConstraint baseTableName="paper_authors" baseColumnNames="authors_id"
+                                 constraintName="fk_user_paper_authors" referencedTableName="users"
+                                 referencedColumnNames="id"/>
+    </changeSet>
 </databaseChangeLog>