Fix various Hibernate mapping oversights.

Change-Id: Iff22c68a718d6f65734e166cd08f4049ccc196ec

Author: benkard

src/main/java/eu/mulk/mulkcms2/benki/newsletter/Newsletter.java

@@ -23,7 +23,7 @@ public class Newsletter extends PanacheEntityBase {
   @Column(name = "date", nullable = false)
   public OffsetDateTime date = OffsetDateTime.now();
 
-  @OneToMany(mappedBy = "owner", fetch = FetchType.LAZY)
+  @OneToMany(mappedBy = "newsletter", fetch = FetchType.LAZY)
   @OrderBy("date")
   public Collection<Post> posts;
 }

src/main/java/eu/mulk/mulkcms2/benki/posts/Post.java

@@ -73,7 +73,7 @@ public enum Scope {
   @CheckForNull
   public OffsetDateTime date;
 
-  @Column(nullable = false)
+  @Column(nullable = false, columnDefinition = "benki.post_scope")
   @Enumerated(EnumType.STRING)
   @Type(PostgreSQLEnumType.class)
   public Scope scope = Scope.top_level;

src/main/java/eu/mulk/mulkcms2/benki/posts/PostText.java

@@ -47,7 +47,7 @@ public abstract class PostText extends PanacheEntityBase {
   @CheckForNull
   public String cachedDescriptionHtml;
 
-  @Column(name = "search_terms")
+  @Column(name = "search_terms", columnDefinition = "tsvector")
   @Generated(event = {INSERT, UPDATE})
   @Type(value = PostgreSQLTSVectorType.class)
   public String searchTerms;