Added base entities

src/main/kotlin/uk/co/neviyn/booru/Entity.kt

@@ -0,0 +1,58 @@
+package uk.co.neviyn.booru
+
+import com.fasterxml.jackson.annotation.JsonIgnore
+import javax.persistence.Column
+import javax.persistence.Entity
+import javax.persistence.Id
+import javax.persistence.JoinColumn
+import javax.persistence.JoinTable
+import javax.persistence.ManyToMany
+import javax.persistence.ManyToOne
+
+@Entity
+open class User(
+    @Column(unique = true)
+    open var name: String = "",
+    open var email: String = "",
+    @JsonIgnore
+    open var password: String = "",
+    @ManyToMany
+    @JoinTable(
+        name = "user_roles",
+        joinColumns = [JoinColumn(name = "user_id", referencedColumnName = "id")],
+        inverseJoinColumns = [JoinColumn(name = "role_id", referencedColumnName = "id")]
+    )
+    open var roles: MutableSet<Role> = mutableSetOf(),
+    @Id open var id: Long = -1
+)
+
+@Entity
+open class Role(
+    @Column(unique = true)
+    open var name: String = "",
+    @Id open var id: Long = -1
+)
+
+@Entity
+open class Image(
+    @Column(unique = true)
+    open var filename: String = "",
+    @ManyToOne
+    @JoinColumn(name = "uploader")
+    open var uploader: User = User(),
+    @ManyToMany
+    @JoinTable(
+        name = "tag_image",
+        joinColumns = [JoinColumn(name = "image_id", referencedColumnName = "id")],
+        inverseJoinColumns = [JoinColumn(name = "tag_id", referencedColumnName = "id")]
+    )
+    open var tags: MutableSet<Tag> = mutableSetOf(),
+    @Id open var id: Long = -1
+)
+
+@Entity
+open class Tag(
+    @Column(unique = true)
+    open var tag: String = "",
+    @Id open var id: Long = -1
+)