add IssueWork entity with Repository, Form and View

kontor-api/src/db/models/comic.py

@@ -105,12 +105,14 @@ class Issue(Base, BaseMixin):
     volume = relationship("Volume", back_populates="issues")
     story_arc_id = Column(String, ForeignKey("story_arc.id"), nullable=True)
     story_arc = relationship("StoryArc", back_populates="issues")
+    issue_works = relationship("IssueWork")
 
 class Artist(Base, BaseMixin):
     __tablename__ = "artist"
     name = Column(String, nullable=False)
     weblink = Column(String, nullable=True)
     comic_works = relationship("ComicWork")
+    issue_works = relationship("IssueWork")
 
     def get_comics(self) -> Dict[str, List[str]]:
         works: Dict[str, List[str]] = {}
@@ -128,6 +130,7 @@ class WorkType(Base, BaseMixin):
     __tablename__ = "worktype"
     name = Column(String, nullable=False, unique=True)
     comic_works = relationship("ComicWork")
+    issue_works = relationship("IssueWork")
 
     def get_artists(self) -> Dict[str, List[str]]:
         works: Dict[str, List[str]] = {}
@@ -155,3 +158,14 @@ class ComicWork(Base, BaseMixin):
     artist = relationship("Artist", back_populates="comic_works")
     work_type_id = Column(String, ForeignKey("worktype.id"), nullable=False)
     work_type = relationship("WorkType", back_populates="comic_works")
+
+
+class IssueWork(Base, BaseMixin):
+    __tablename__ = "issue_work"
+    issue_id = Column(String, ForeignKey("issue.id"), nullable=False)
+    issue = relationship("Issue", back_populates="issue_works")
+    artist_id = Column(String, ForeignKey("artist.id"), nullable=False)
+    artist = relationship("Artist", back_populates="issue_works")
+    work_type_id = Column(String, ForeignKey("worktype.id"), nullable=False)
+    work_type = relationship("WorkType", back_populates="issue_works")
+

kontor-scripts/db/models/__init__.py

@@ -20,6 +20,7 @@ from db.models.comic import (
     TradePaperback,
     Volume,
     ComicWork,
+    IssueWork,
     Artist,
     Comic,
     Publisher,
@@ -61,6 +62,7 @@ registry = {
     Issue.__tablename__: Issue,
     TradePaperback.__tablename__: TradePaperback,
     ComicWork.__tablename__: ComicWork,
+    IssueWork.__tablename__: IssueWork,
     Article.__tablename__: Article,
     BookshelfPublisher.__tablename__: BookshelfPublisher,
     Book.__tablename__: Book,

kontor-scripts/db/models/comic.py

@@ -195,6 +195,7 @@ class Issue(Base, BaseMixin):
     volume = relationship("Volume", back_populates="issues")
     story_arc_id = Column(String, ForeignKey("story_arc.id"), nullable=True)
     story_arc = relationship("StoryArc", back_populates="issues")
+    issue_works = relationship("IssueWork")
 
     def import_dict(self, import_data: Dict[AnyStr, Any]):
         self.id = import_data['id']
@@ -236,6 +237,7 @@ class Artist(Base, BaseMixin):
     name = Column(String, nullable=False)
     weblink = Column(String, nullable=True)
     comic_works = relationship("ComicWork")
+    issue_works = relationship("IssueWork")
 
     def import_dict(self, import_data: Dict[AnyStr, Any]):
         self.id = import_data['id']
@@ -262,6 +264,7 @@ class WorkType(Base, BaseMixin):
     __tablename__ = "worktype"
     name = Column(String, nullable=False, unique=True)
     comic_works = relationship("ComicWork")
+    issue_works = relationship("IssueWork")
 
     def __repr__(self):
         return f'Worktype({self.id} {self.version} {self.name} {len(self.comic_works)})'
@@ -316,3 +319,35 @@ class ComicWork(Base, BaseMixin):
             'work_type_id': self.work_type_id
         }
         return item
+
+
+class IssueWork(Base, BaseMixin):
+    __tablename__ = "issue_work"
+    issue_id = Column(String, ForeignKey("issue.id"), nullable=False)
+    issue = relationship("Issue", back_populates="issue_works")
+    artist_id = Column(String, ForeignKey("artist.id"), nullable=False)
+    artist = relationship("Artist", back_populates="issue_works")
+    work_type_id = Column(String, ForeignKey("worktype.id"), nullable=False)
+    work_type = relationship("WorkType", back_populates="issue_works")
+
+    def import_dict(self, import_data: Dict[AnyStr, Any]):
+        self.id = import_data['id']
+        self.created_date = import_data['created_date']
+        self.last_modified_date = import_data['last_modified_date']
+        self.version = import_data['version']
+        self.issue_id = import_data['issue_id']
+        self.artist_id = import_data['artist_id']
+        self.work_type_id = import_data['work_type_id']
+
+    def export_dict(self) -> Dict[AnyStr, Any]:
+        item: Dict[AnyStr, Any] = {
+            'id': self.id,
+            'created_date': str(self.created_date),
+            'last_modified_date': str(self.last_modified_date),
+            'version': self.version,
+            'issue_id': self.issue_id,
+            'artist_id': self.artist_id,
+            'work_type_id': self.work_type_id
+        }
+        return item
+

kontor-spring/src/main/java/de/thpeetz/kontor/admin/AdminConstants.java

@@ -3,15 +3,17 @@ package de.thpeetz.kontor.admin;
 import com.vaadin.flow.component.icon.VaadinIcon;
 import com.vaadin.flow.component.sidenav.SideNavItem;
 import com.vaadin.flow.router.RouterLink;
-import de.thpeetz.kontor.admin.views.*;
+import de.thpeetz.kontor.admin.views.AssignmentView;
+import de.thpeetz.kontor.admin.views.PermissionView;
+import de.thpeetz.kontor.admin.views.ProfileView;
 import de.thpeetz.kontor.comics.ComicConstants;
 import de.thpeetz.kontor.comics.views.ComicWorkView;
+import de.thpeetz.kontor.comics.views.IssueWorkView;
 import de.thpeetz.kontor.media.MediaConstants;
 import de.thpeetz.kontor.media.views.MediaActorFileView;
 
 public class AdminConstants {
 
-
     private AdminConstants() {
         // private constructor to hide the implicit public one
     }
@@ -46,6 +48,7 @@ public class AdminConstants {
         administration.addItem(new SideNavItem(PERMISSION, PermissionView.class));
         SideNavItem data = new SideNavItem(DATA, ASSIGNMENT_ROUTE, VaadinIcon.DATABASE.create());
         data.addItem(new SideNavItem(ComicConstants.COMICWORK, ComicWorkView.class));
+        data.addItem(new SideNavItem(ComicConstants.ISSUEWORK, IssueWorkView.class));
         data.addItem(new SideNavItem(MediaConstants.MEDIAACTORFILE, MediaActorFileView.class));
         data.addItem(new SideNavItem(AUTHORIZATION, AssignmentView.class));
         administration.addItem(data);

kontor-spring/src/main/java/de/thpeetz/kontor/comics/ComicConstants.java

@@ -9,6 +9,7 @@ import de.thpeetz.kontor.comics.views.ArtistView;
 import de.thpeetz.kontor.comics.views.ComicView;
 import de.thpeetz.kontor.comics.views.ComicWorkView;
 import de.thpeetz.kontor.comics.views.IssueView;
+import de.thpeetz.kontor.comics.views.IssueWorkView;
 import de.thpeetz.kontor.comics.views.PublisherView;
 import de.thpeetz.kontor.comics.views.StoryArcView;
 import de.thpeetz.kontor.comics.views.TradePaperbackView;
@@ -25,7 +26,9 @@ public class ComicConstants {
     public static final String PUBLISHER = "Publisher";
     public static final String PUBLISHER_ROUTE = "comics/publisher";
     public static final String COMICWORK = "ComicWork";
+    public static final String ISSUEWORK = "IssueWork";
     public static final String COMICWORK_ROUTE = "comics/comicwork";
+    public static final String ISSUEWORK_ROUTE = "comics/issuework";
     public static final String WORKTYPE = "Worktype";
     public static final String WORKTYPE_ROUTE = "comics/worktype";
     public static final String ARTIST = "Artist";
@@ -55,6 +58,10 @@ public class ComicConstants {
         return new RouterLink(COMICWORK, ComicWorkView.class);
     }
 
+    public static RouterLink getIssueWorkLink() {
+        return new RouterLink(ISSUEWORK, IssueWorkView.class);
+    }
+
     public static RouterLink getIssueLink() {
         return new RouterLink(ISSUE, IssueView.class);
     }

kontor-spring/src/main/java/de/thpeetz/kontor/comics/SetupModuleComics.java

@@ -1,30 +1,19 @@
 package de.thpeetz.kontor.comics;
 
-import java.util.List;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.event.ContextRefreshedEvent;
 import org.springframework.stereotype.Component;
 
-import de.thpeetz.kontor.comics.data.Artist;
+import de.thpeetz.kontor.comics.repository.ArtistRepository;
-import de.thpeetz.kontor.comics.data.ArtistRepository;
+import de.thpeetz.kontor.comics.repository.ComicRepository;
-import de.thpeetz.kontor.comics.data.Comic;
+import de.thpeetz.kontor.comics.repository.ComicWorkRepository;
-import de.thpeetz.kontor.comics.data.ComicRepository;
+import de.thpeetz.kontor.comics.repository.IssueRepository;
-import de.thpeetz.kontor.comics.data.ComicWork;
+import de.thpeetz.kontor.comics.repository.PublisherRepository;
-import de.thpeetz.kontor.comics.data.ComicWorkRepository;
+import de.thpeetz.kontor.comics.repository.StoryArcRepository;
-import de.thpeetz.kontor.comics.data.Issue;
+import de.thpeetz.kontor.comics.repository.TradePaperbackRepository;
-import de.thpeetz.kontor.comics.data.IssueRepository;
+import de.thpeetz.kontor.comics.repository.VolumeRepository;
-import de.thpeetz.kontor.comics.data.Publisher;
+import de.thpeetz.kontor.comics.repository.WorktypeRepository;
-import de.thpeetz.kontor.comics.data.PublisherRepository;
-import de.thpeetz.kontor.comics.data.StoryArc;
-import de.thpeetz.kontor.comics.data.StoryArcRepository;
-import de.thpeetz.kontor.comics.data.TradePaperback;
-import de.thpeetz.kontor.comics.data.TradePaperbackRepository;
-import de.thpeetz.kontor.comics.data.Volume;
-import de.thpeetz.kontor.comics.data.VolumeRepository;
-import de.thpeetz.kontor.comics.data.Worktype;
-import de.thpeetz.kontor.comics.data.WorktypeRepository;
 import lombok.extern.slf4j.Slf4j;
 
 @Slf4j

kontor-spring/src/main/java/de/thpeetz/kontor/comics/data/Artist.java

@@ -37,6 +37,10 @@ public class Artist extends AbstractEntity {
     @Nullable
     List<ComicWork> comicWorks = new LinkedList<>();
 
+    @OneToMany(fetch = FetchType.EAGER, mappedBy = "artist", cascade = CascadeType.REFRESH, orphanRemoval = true)
+    @Nullable
+    List<IssueWork> issueWorks = new LinkedList<>();
+
     @Override
     public String toString() {
         final StringBuffer sb = new StringBuffer("Artist{");

kontor-spring/src/main/java/de/thpeetz/kontor/comics/data/Issue.java

@@ -5,19 +5,16 @@ import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import de.thpeetz.kontor.common.data.*;
 import io.hypersistence.utils.hibernate.type.basic.YearMonthDateType;
 import jakarta.annotation.Nullable;
-import jakarta.persistence.Column;
+import jakarta.persistence.*;
-import jakarta.persistence.Entity;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
 import jakarta.validation.constraints.NotEmpty;
 import jakarta.validation.constraints.NotNull;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
-import lombok.ToString;
 import org.hibernate.annotations.Type;
 
 import java.time.YearMonth;
+import java.util.*;
 
 @Getter
 @Setter
@@ -58,6 +55,10 @@ public class Issue extends AbstractEntity {
 
     private Boolean inStock;
 
+    @OneToMany(fetch = FetchType.EAGER, mappedBy = "issue", cascade = CascadeType.REFRESH, orphanRemoval = true)
+    @Nullable
+    List<IssueWork> issueWorks;
+
     public String getComicTitle() {
         return comic.getTitle();
     }

kontor-spring/src/main/java/de/thpeetz/kontor/comics/data/IssueWork.java

@@ -0,0 +1,48 @@
+package de.thpeetz.kontor.comics.data;
+
+import de.thpeetz.kontor.common.data.AbstractEntity;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Index;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.persistence.UniqueConstraint;
+import jakarta.validation.constraints.NotNull;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@EqualsAndHashCode(callSuper = false)
+@Entity
+@Table(indexes = {@Index(columnList = "issue_id, artist_id, workType_id") },
+        uniqueConstraints = @UniqueConstraint(columnNames = {"issue_id", "artist_id", "workType_id" })
+)
+public class IssueWork extends AbstractEntity {
+
+    @ManyToOne
+    @JoinColumn(name = "issue_id")
+    @NotNull
+    private Issue issue;
+
+    @ManyToOne
+    @JoinColumn(name = "artist_id")
+    @NotNull
+    private Artist artist;
+
+    @ManyToOne
+    @JoinColumn(name = "workType_id")
+    @NotNull
+    private Worktype workType;
+
+    @Override
+    public String toString() {
+        final StringBuilder sb = new StringBuilder("IssueWork{");
+        sb.append("issue=").append(issue);
+        sb.append(", artist=").append(artist);
+        sb.append(", workType=").append(workType);
+        sb.append('}');
+        return sb.toString();
+    }
+}

kontor-spring/src/main/java/de/thpeetz/kontor/comics/data/Worktype.java

@@ -34,6 +34,10 @@ public class Worktype extends AbstractEntity {
     @Nullable
     List<ComicWork> comicWorks = new LinkedList<>();
 
+    @OneToMany(fetch = FetchType.EAGER, mappedBy = "workType", cascade = CascadeType.REFRESH, orphanRemoval = true)
+    @Nullable
+    List<IssueWork> issueWorks = new LinkedList<>();
+
     @Override
     public String toString() {
         final StringBuffer sb = new StringBuffer("Worktype{");

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/ArtistRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/ComicRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/ComicWorkRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/IssueRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/IssueWorkRepository.java

@@ -0,0 +1,15 @@
+package de.thpeetz.kontor.comics.repository;
+
+import de.thpeetz.kontor.comics.data.*;
+import org.springframework.data.jpa.repository.*;
+
+import java.util.*;
+
+public interface IssueWorkRepository extends JpaRepository<IssueWork, String> {
+
+    @Query("SELECT i from IssueWork i where i.issue = ?1 and i.artist = ?2 and i.workType = ?3")
+    IssueWork findbyIssueAndArtistAndWorktype(Issue issue, Artist artist, Worktype worktype);
+
+    @Query("select i from IssueWork i where i.issue = ?1")
+    List<IssueWork> findByIssue(Issue issue);
+}

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/PublisherRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/StoryArcRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/TradePaperbackRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/VolumeRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface VolumeRepository extends JpaRepository<Volume, String> {

kontor-spring/src/main/java/de/thpeetz/kontor/comics/repository/WorktypeRepository.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/services/ComicService.java

@@ -2,26 +2,10 @@ package de.thpeetz.kontor.comics.services;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
+import de.thpeetz.kontor.comics.repository.*;
 import org.springframework.stereotype.Service;
 
-import de.thpeetz.kontor.comics.data.Artist;
-import de.thpeetz.kontor.comics.data.ArtistRepository;
-import de.thpeetz.kontor.comics.data.Comic;
-import de.thpeetz.kontor.comics.data.ComicRepository;
-import de.thpeetz.kontor.comics.data.ComicWork;
-import de.thpeetz.kontor.comics.data.ComicWorkRepository;
-import de.thpeetz.kontor.comics.data.Issue;
-import de.thpeetz.kontor.comics.data.IssueRepository;
-import de.thpeetz.kontor.comics.data.Publisher;
-import de.thpeetz.kontor.comics.data.PublisherRepository;
-import de.thpeetz.kontor.comics.data.StoryArc;
-import de.thpeetz.kontor.comics.data.StoryArcRepository;
-import de.thpeetz.kontor.comics.data.TradePaperback;
-import de.thpeetz.kontor.comics.data.TradePaperbackRepository;
-import de.thpeetz.kontor.comics.data.Volume;
-import de.thpeetz.kontor.comics.data.VolumeRepository;
-import de.thpeetz.kontor.comics.data.Worktype;
-import de.thpeetz.kontor.comics.data.WorktypeRepository;
 import lombok.extern.slf4j.Slf4j;
 
 @Slf4j
@@ -35,12 +19,13 @@ public class ComicService {
     private final StoryArcRepository storyArcRepository;
     private final TradePaperbackRepository tradePaperbackRepository;
     private final ComicWorkRepository comicWorkRepository;
+    private final IssueWorkRepository issueWorkRepository;
     private final VolumeRepository volumeRepository;
     private final WorktypeRepository worktypeRepository;
 
     public ComicService(PublisherRepository publisherRepository, ComicRepository comicRepository,
             ArtistRepository artistRepository, IssueRepository issueRepository, StoryArcRepository storyArcRepository,
-            TradePaperbackRepository tradePaperbackRepository, ComicWorkRepository comicWorkRepository,
+            TradePaperbackRepository tradePaperbackRepository, ComicWorkRepository comicWorkRepository, IssueWorkRepository issueWorkRepository,
             VolumeRepository volumeRepository, WorktypeRepository worktypeRepository) {
 
         this.publisherRepository = publisherRepository;
@@ -50,6 +35,7 @@ public class ComicService {
         this.storyArcRepository = storyArcRepository;
         this.tradePaperbackRepository = tradePaperbackRepository;
         this.comicWorkRepository = comicWorkRepository;
+        this.issueWorkRepository = issueWorkRepository;
         this.volumeRepository = volumeRepository;
         this.worktypeRepository = worktypeRepository;
     }
@@ -231,6 +217,31 @@ public class ComicService {
         comicWorkRepository.delete(comicWork);
     }
 
+    public List<IssueWork> findAllIssueWorks() {
+        return issueWorkRepository.findAll();
+    }
+
+    public void saveIssueWork(IssueWork issueWork) {
+        if (issueWork == null) {
+            log.warn("IssueWork is null. Are you sure you have connected your form to the application?");
+            return;
+        }
+        issueWorkRepository.save(issueWork);
+    }
+
+    public void deleteIssueWork(IssueWork issueWork) {
+        Issue issue = issueWork.getIssue();
+        issue.getIssueWorks().remove(issueWork);
+        issueRepository.save(issue);
+        Artist artist = issueWork.getArtist();
+        artist.getIssueWorks().remove(issueWork);
+        artistRepository.save(artist);
+        Worktype worktype = issueWork.getWorkType();
+        worktype.getIssueWorks().remove(issueWork);
+        worktypeRepository.save(worktype);
+        issueWorkRepository.delete(issueWork);
+    }
+
     public List<Volume> findAllVolumes() {
         return volumeRepository.findAll();
     }
@@ -285,14 +296,23 @@ public class ComicService {
 
     public void deleteWorktype(Worktype worktype) {
         List<ComicWork> comicWorks = worktype.getComicWorks();
+        List<IssueWork> issueWorks = worktype.getIssueWorks();
         if (comicWorks == null) {
             log.warn("reference to ComicWork is null");
-            return;
+        } else {
+            log.info("found {} references to ComicWork", comicWorks.size());
+            comicWorks.forEach(comicWork -> {
+                comicWork.setWorkType(null);
+            });
+        }
+        if (issueWorks == null) {
+            log.warn("reference to ComicWork is null");
+        } else {
+            log.info("found {} references to IssueWork", issueWorks.size());
+            issueWorks.forEach(issueWork -> {
+                issueWork.setWorkType(null);
+            });
         }
-        log.info("found {} references to ComicWork", comicWorks.size());
-        comicWorks.forEach(comicWork -> {
-            comicWork.setWorkType(null);
-        });
         log.info("delete Worktype: {}", worktype);
         worktypeRepository.delete(worktype);
     }

kontor-spring/src/main/java/de/thpeetz/kontor/comics/views/IssueForm.java

@@ -10,14 +10,13 @@ import com.vaadin.flow.component.button.ButtonVariant;
 import com.vaadin.flow.component.checkbox.Checkbox;
 import com.vaadin.flow.component.combobox.ComboBox;
 import com.vaadin.flow.component.formlayout.FormLayout;
+import com.vaadin.flow.component.grid.*;
 import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
 import com.vaadin.flow.component.textfield.TextField;
 
 import com.vaadin.flow.data.binder.BeanValidationBinder;
 import com.vaadin.flow.data.binder.Binder;
-import de.thpeetz.kontor.comics.data.Comic;
+import de.thpeetz.kontor.comics.data.*;
-import de.thpeetz.kontor.comics.data.Issue;
-import de.thpeetz.kontor.comics.data.Volume;
 import de.thpeetz.kontor.common.views.YearMonthField;
 import lombok.extern.slf4j.Slf4j;
 
@@ -31,6 +30,7 @@ public class IssueForm extends FormLayout {
     YearMonthField publishedOn = new YearMonthField();
     Checkbox isRead = new Checkbox("Read");
     Checkbox inStock = new Checkbox("In stock");
+    Grid<IssueWork> issueWorks = new Grid<>(IssueWork.class);
 
     Button save = new Button("Save");
     Button delete = new Button("Delete");
@@ -53,7 +53,11 @@ public class IssueForm extends FormLayout {
         comic.setItemLabelGenerator(Comic::getTitle);
         volume.setItems(volumes);
         volume.setItemLabelGenerator(Volume::getName);
-        add(comic, volume, issueNumber, title, publishedOn, isRead, inStock, createButtonsLayout());
+        issueWorks.setColumns("workType.name", "artist.name");
+        issueWorks.getColumnByKey("workType.name").setHeader("Work type");
+        issueWorks.getColumnByKey("artist.name").setHeader("Artist");
+        issueWorks.getColumns().forEach(col -> col.setAutoWidth(true));
+        add(comic, volume, issueNumber, title, publishedOn, isRead, inStock,issueWorks, createButtonsLayout());
     }
 
     private HorizontalLayout createButtonsLayout() {
@@ -96,6 +100,11 @@ public class IssueForm extends FormLayout {
         }
     }
 
+    public void setIssueWorks(List<IssueWork> works) {
+        log.info("Setting issue works: {}", works);
+        issueWorks.setItems(works);
+    }
+
     public abstract static class IssueFormEvent extends ComponentEvent<IssueForm> {
         @lombok.Getter
         private final Issue issue;

kontor-spring/src/main/java/de/thpeetz/kontor/comics/views/IssueView.java

@@ -156,6 +156,12 @@ public class IssueView extends VerticalLayout {
             closeEditor();
         } else {
             form.setIssue(issue);
+            if (issue.getIssueWorks() == null) {
+                log.info("No issue works");
+            } else {
+                log.info("Issue works sze: {}", issue.getIssueWorks().size());
+            }
+            form.setIssueWorks(issue.getIssueWorks());
             form.setVisible(true);
             addClassName("editing");
         }

kontor-spring/src/main/java/de/thpeetz/kontor/comics/views/IssueWorkForm.java

@@ -0,0 +1,113 @@
+package de.thpeetz.kontor.comics.views;
+
+import java.util.List;
+
+import com.vaadin.flow.component.ComponentEvent;
+import com.vaadin.flow.component.ComponentEventListener;
+import com.vaadin.flow.component.Key;
+import com.vaadin.flow.component.button.Button;
+import com.vaadin.flow.component.button.ButtonVariant;
+import com.vaadin.flow.component.combobox.ComboBox;
+import com.vaadin.flow.component.formlayout.FormLayout;
+import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
+import com.vaadin.flow.data.binder.BeanValidationBinder;
+import com.vaadin.flow.data.binder.Binder;
+
+import de.thpeetz.kontor.comics.data.Artist;
+import de.thpeetz.kontor.comics.data.Issue;
+import de.thpeetz.kontor.comics.data.IssueWork;
+import de.thpeetz.kontor.comics.data.Worktype;
+
+public class IssueWorkForm extends FormLayout {
+    ComboBox<Issue> issue = new ComboBox<>("Issue");
+    ComboBox<Artist> artist = new ComboBox<>("Artist");
+    ComboBox<Worktype> workType = new ComboBox<>("Worktype");
+
+    Button save = new Button("Save");
+    Button delete = new Button("Delete");
+    Button close = new Button("Cancel");
+
+    Binder<IssueWork> binder = new BeanValidationBinder<>(IssueWork.class);
+
+    public IssueWorkForm(List<Issue> issues, List<Artist> artists, List<Worktype> workTypes) {
+        addClassName("issuework-form");
+        binder.bindInstanceFields(this);
+
+        issue.setItems(issues);
+        issue.setItemLabelGenerator(Issue::getIssueNumber);
+        artist.setItems(artists);
+        artist.setItemLabelGenerator(Artist::getName);
+        workType.setItems(workTypes);
+        workType.setItemLabelGenerator(Worktype::getName);
+        add(issue, artist, workType, createButtonsLayout());
+    }
+
+    private HorizontalLayout createButtonsLayout() {
+        save.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
+        delete.addThemeVariants(ButtonVariant.LUMO_ERROR);
+        close.addThemeVariants(ButtonVariant.LUMO_TERTIARY);
+
+        save.addClickShortcut(Key.ENTER);
+        close.addClickShortcut(Key.ESCAPE);
+
+        save.addClickListener(event -> validateAndSave());
+        delete.addClickListener(event -> fireEvent(new DeleteEvent(this, binder.getBean())));
+        close.addClickListener(event -> fireEvent(new CloseEvent(this)));
+
+        binder.addStatusChangeListener(e -> save.setEnabled(binder.isValid()));
+        return new HorizontalLayout(save, delete, close);
+    }
+
+    private void validateAndSave() {
+        if (binder.isValid()) {
+            fireEvent(new SaveEvent(this, binder.getBean()));
+        }
+    }
+
+    public void setIssueWork(IssueWork issueWork) {
+        binder.setBean(issueWork);
+    }
+
+    public abstract static class IssueWorkFormEvent extends ComponentEvent<IssueWorkForm> {
+        private IssueWork issueWork;
+
+        protected IssueWorkFormEvent(IssueWorkForm source, IssueWork issueWork) {
+            super(source, false);
+            this.issueWork = issueWork;
+        }
+
+        public IssueWork getIssueWork() {
+            return issueWork;
+        }
+    }
+
+    public static class SaveEvent extends IssueWorkFormEvent {
+        SaveEvent(IssueWorkForm source, IssueWork issueWork) {
+            super(source, issueWork);
+        }
+    }
+
+    public static class DeleteEvent extends IssueWorkFormEvent {
+        DeleteEvent(IssueWorkForm source, IssueWork issueWork) {
+            super(source, issueWork);
+        }
+    }
+
+    public static class CloseEvent extends IssueWorkFormEvent {
+        CloseEvent(IssueWorkForm source) {
+            super(source, null);
+        }
+    }
+
+    public void addDeleteListener(ComponentEventListener<DeleteEvent> listener) {
+        addListener(DeleteEvent.class, listener);
+    }
+
+    public void addSaveListener(ComponentEventListener<SaveEvent> listener) {
+        addListener(SaveEvent.class, listener);
+    }
+
+    public void addCloseListener(ComponentEventListener<CloseEvent> listener) {
+        addListener(CloseEvent.class, listener);
+    }
+}

kontor-spring/src/main/java/de/thpeetz/kontor/comics/views/IssueWorkView.java

@@ -0,0 +1,122 @@
+package de.thpeetz.kontor.comics.views;
+
+import de.thpeetz.kontor.comics.data.IssueWork;
+import org.springframework.context.annotation.Scope;
+
+import com.vaadin.flow.component.Component;
+import com.vaadin.flow.component.button.Button;
+import com.vaadin.flow.component.grid.Grid;
+import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
+import com.vaadin.flow.component.orderedlayout.VerticalLayout;
+import com.vaadin.flow.router.PageTitle;
+import com.vaadin.flow.router.Route;
+import com.vaadin.flow.spring.annotation.SpringComponent;
+
+import de.thpeetz.kontor.comics.ComicConstants;
+import de.thpeetz.kontor.comics.services.ComicService;
+import de.thpeetz.kontor.common.views.MainLayout;
+import jakarta.annotation.security.PermitAll;
+
+@SpringComponent
+@Scope("prototype")
+@PermitAll
+@Route(value = ComicConstants.ISSUEWORK_ROUTE, layout = MainLayout.class)
+@PageTitle("IssueWork | Comics | Kontor")
+public class IssueWorkView extends VerticalLayout {
+
+    Grid<IssueWork> grid = new Grid<>(IssueWork.class);
+    IssueWorkForm form;
+    ComicService service;
+
+    public IssueWorkView(ComicService service) {
+        this.service = service;
+        addClassName("issueWork-view");
+        setSizeFull();
+        configureGrid();
+        configureForm();
+
+        add(getToolbar(), getContent());
+        updateList();
+    }
+
+    public Grid<IssueWork> getGrid() {
+        return grid;
+    }
+
+    private void configureGrid() {
+        grid.addClassName("issue-grid");
+        grid.setSizeFull();
+        grid.setColumns("issue.title", "artist.name", "workType.name");
+        grid.getColumns().forEach(col -> col.setAutoWidth(true));
+        grid.asSingleSelect().addValueChangeListener(event -> editIssueWork(event.getValue()));
+    }
+
+    public IssueWorkForm getForm() {
+        return form;
+    }
+
+    private void configureForm() {
+        form = new IssueWorkForm(service.findAllIssues(), service.findAllArtists(null),
+                service.findAllWorktypes(null));
+        form.setWidth("25em");
+        form.setVisible(false);
+        form.addSaveListener(this::saveIssueWork);
+        form.addDeleteListener(this::deleteIssueWork);
+        form.addCloseListener(e -> closeEditor());
+    }
+
+    private void saveIssueWork(IssueWorkForm.SaveEvent event) {
+        service.saveIssueWork(event.getIssueWork());
+        updateList();
+        closeEditor();
+    }
+
+    private void deleteIssueWork(IssueWorkForm.DeleteEvent event) {
+        service.deleteIssueWork(event.getIssueWork());
+        updateList();
+        closeEditor();
+    }
+
+    private Component getContent() {
+        HorizontalLayout content = new HorizontalLayout(grid, form);
+        content.setFlexGrow(2, grid);
+        content.setFlexGrow(1, form);
+        content.addClassName("content");
+        content.setSizeFull();
+        return content;
+    }
+
+    private HorizontalLayout getToolbar() {
+        Button addIssueButton = new Button("Add IssueWork");
+        addIssueButton.addClickListener(click -> addIssueWork());
+
+        HorizontalLayout toolbar = new HorizontalLayout(addIssueButton);
+        toolbar.addClassName("toolbar");
+        return toolbar;
+    }
+
+    public void editIssueWork(IssueWork issueWork) {
+        if (issueWork == null) {
+            closeEditor();
+        } else {
+            form.setIssueWork(issueWork);
+            form.setVisible(true);
+            addClassName("editing");
+        }
+    }
+
+    private void closeEditor() {
+        form.setIssueWork(null);
+        form.setVisible(false);
+        removeClassName("editing");
+    }
+
+    private void addIssueWork() {
+        grid.asSingleSelect().clear();
+        editIssueWork(new IssueWork());
+    }
+
+    public void updateList() {
+        grid.setItems(service.findAllIssueWorks());
+    }
+}

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/ArtistTest.java

@@ -4,6 +4,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.repository.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/ComicTest.java

@@ -4,8 +4,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
-import org.junit.jupiter.api.AfterEach;
+import de.thpeetz.kontor.comics.repository.*;
-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestMethodOrder;
@@ -13,7 +12,6 @@ import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.dao.DataIntegrityViolationException;
-import org.springframework.orm.jpa.JpaSystemException;
 import org.springframework.transaction.TransactionSystemException;
 
 import de.thpeetz.kontor.comics.TestConstants;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/IssueTest.java

@@ -4,6 +4,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.repository.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/PublisherTest.java

@@ -2,6 +2,7 @@ package de.thpeetz.kontor.comics.data;
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import de.thpeetz.kontor.comics.repository.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/StoryArcTest.java

@@ -2,8 +2,7 @@ package de.thpeetz.kontor.comics.data;
 
 import static org.junit.jupiter.api.Assertions.*;
 
-import java.util.List;
+import de.thpeetz.kontor.comics.repository.*;
-
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/TradePaperbackTest.java

@@ -2,6 +2,7 @@ package de.thpeetz.kontor.comics.data;
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import de.thpeetz.kontor.comics.repository.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/VolumeTest.java

@@ -2,8 +2,7 @@ package de.thpeetz.kontor.comics.data;
 
 import static org.junit.jupiter.api.Assertions.*;
 
-import java.util.List;
+import de.thpeetz.kontor.comics.repository.*;
-
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/data/WorktypeTest.java

@@ -4,6 +4,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.repository.*;
 import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
 import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;
@@ -11,7 +12,6 @@ import org.junit.jupiter.api.TestMethodOrder;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.dao.DataIntegrityViolationException;
-import org.springframework.orm.jpa.JpaSystemException;
 import org.springframework.transaction.TransactionSystemException;
 
 import de.thpeetz.kontor.comics.TestConstants;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/ArtistRepositoryTest.java

@@ -1,9 +1,10 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
 import org.junit.jupiter.api.Order;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/ComicRepositoryTest.java

@@ -1,10 +1,11 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 import java.util.stream.Collectors;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/ComicWorkRepositoryTest.java

@@ -1,7 +1,8 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
 import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/IssueRepositoryTest.java

@@ -1,4 +1,4 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
@@ -6,6 +6,7 @@ import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/PublisherRepositoryTest.java

@@ -1,9 +1,10 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
 import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/StoryArcRepositoryTest.java

@@ -1,9 +1,10 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/TradePaperbackRepositoryTest.java

@@ -1,4 +1,4 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
@@ -6,6 +6,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/VolumeRepositoryTest.java

@@ -1,9 +1,10 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 
+import de.thpeetz.kontor.comics.data.*;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;

kontor-spring/src/test/java/de/thpeetz/kontor/comics/repository/WorktypeRepositoryTest.java

@@ -1,20 +1,15 @@
-package de.thpeetz.kontor.comics.data;
+package de.thpeetz.kontor.comics.repository;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.util.List;
 import java.util.stream.Collectors;
 
-import org.junit.jupiter.api.BeforeEach;
+import de.thpeetz.kontor.comics.data.*;
-import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
-import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.TestMethodOrder;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 
-import de.thpeetz.kontor.comics.TestConstants;
-
 @SpringBootTest
 class WorktypeRepositoryTest {