From d7c76bf9c56885d47e20ba2e3bf45aa7589873a9 Mon Sep 17 00:00:00 2001
From: Satindar Dhillon <satindar@gmail.com>
Date: Fri, 13 Jan 2023 10:54:57 -0800
Subject: [PATCH] add foreign keys to cross ref tables

---
 .../omnivore/persistence/entities/Highlight.kt | 18 +++++++++++++++++-
 .../persistence/entities/SavedItemLabel.kt     | 18 +++++++++++++++++-
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/Highlight.kt b/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/Highlight.kt
index fcfb76ba6..31ecae2cd 100644
--- a/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/Highlight.kt
+++ b/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/Highlight.kt
@@ -24,7 +24,23 @@ data class Highlight(
   // has a UserProfile (no inverse)
 )
 
-@Entity(primaryKeys = ["highlightId", "savedItemId"])
+@Entity(
+  primaryKeys = ["highlightId", "savedItemId"],
+  foreignKeys = [
+    ForeignKey(
+      entity = Highlight::class,
+      parentColumns = arrayOf("highlightId"),
+      childColumns = arrayOf("highlightId"),
+      onDelete = ForeignKey.CASCADE
+    ),
+    ForeignKey(
+      entity = SavedItem::class,
+      parentColumns = arrayOf("savedItemId"),
+      childColumns = arrayOf("savedItemId"),
+      onDelete = ForeignKey.CASCADE
+    )
+  ]
+)
 data class SavedItemAndHighlightCrossRef(
   val highlightId: String,
   val savedItemId: String
diff --git a/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/SavedItemLabel.kt b/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/SavedItemLabel.kt
index 512c1c564..ea3b3aa40 100644
--- a/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/SavedItemLabel.kt
+++ b/android/Omnivore/app/src/main/java/app/omnivore/omnivore/persistence/entities/SavedItemLabel.kt
@@ -18,7 +18,23 @@ interface SavedItemLabelDao {
   fun insertAll(items: List<SavedItemLabel>)
 }
 
-@Entity(primaryKeys = ["savedItemLabelId", "savedItemId"])
+@Entity(
+  primaryKeys = ["savedItemLabelId", "savedItemId"],
+  foreignKeys = [
+    ForeignKey(
+      entity = SavedItem::class,
+      parentColumns = arrayOf("savedItemId"),
+      childColumns = arrayOf("savedItemId"),
+      onDelete = ForeignKey.CASCADE
+    ),
+    ForeignKey(
+      entity = SavedItemLabel::class,
+      parentColumns = arrayOf("savedItemLabelId"),
+      childColumns = arrayOf("savedItemLabelId"),
+      onDelete = ForeignKey.CASCADE
+    )
+  ]
+)
 data class SavedItemAndSavedItemLabelCrossRef(
   val savedItemLabelId: String,
   val savedItemId: String