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commit 305b6dc89113575fbdd69c357a7862b3ed5fefcd
parent e347b7ed910e13d07a86e116b5ec2fb7d1f2a546
Author: Dan Stillman <dstillman@zotero.org>
Date:   Tue,  1 Sep 2009 06:22:30 +0000

Fix for "constraint failed" error when a local standalone attachment in a collection was moved into a parent remotely (e.g. a PDF using Retrieve PDF Metadata)


Diffstat:
M
triggers.sql
 | 
20
++++++--------------

1 file changed, 6 insertions(+), 14 deletions(-)
diff --git a/triggers.sql b/triggers.sql
@@ -1,4 +1,4 @@
--- 12
+-- 13
 
 -- Triggers to validate date field
 DROP TRIGGER IF EXISTS insert_date_field;
@@ -271,20 +271,20 @@ CREATE TRIGGER fku_collectionItems_itemID_sourceItemID
     WHERE NEW.itemID IN (SELECT itemID FROM itemAttachments WHERE sourceItemID IS NOT NULL UNION SELECT itemID FROM itemNotes WHERE sourceItemID IS NOT NULL);
   END;
 
+-- When making a standalone attachment a child, remove from any collections
 DROP TRIGGER IF EXISTS fku_itemAttachments_sourceItemID_collectionItems_itemID;
 CREATE TRIGGER fku_itemAttachments_sourceItemID_collectionItems_itemID
   BEFORE UPDATE OF sourceItemID ON itemAttachments
-  FOR EACH ROW BEGIN
-    SELECT RAISE(ABORT, 'update on table "itemAttachments" violates foreign key constraint "fku_itemAttachments_sourceItemID_collectionItems_itemID"')
-    WHERE NEW.sourceItemID IS NOT NULL AND (SELECT COUNT(*) FROM collectionItems WHERE itemID = NEW.itemID) > 0;
+  FOR EACH ROW WHEN OLD.sourceItemID IS NULL AND NEW.sourceItemID IS NOT NULL BEGIN
+    DELETE FROM collectionItems WHERE itemID = NEW.itemID;
   END;
 
+-- When making a standalone note a child, remove from any collections
 DROP TRIGGER IF EXISTS fku_itemNotes_sourceItemID_collectionItems_itemID;
 CREATE TRIGGER fku_itemNotes_sourceItemID_collectionItems_itemID
   BEFORE UPDATE OF sourceItemID ON itemNotes
   FOR EACH ROW BEGIN
-    SELECT RAISE(ABORT, 'update on table "itemNotes" violates foreign key constraint "fku_itemNotes_sourceItemID_collectionItems_itemID"')
-    WHERE NEW.sourceItemID IS NOT NULL AND (SELECT COUNT(*) FROM collectionItems WHERE itemID = NEW.itemID) > 0;
+    DELETE FROM collectionItems WHERE itemID = NEW.itemID;
   END;
 
 
@@ -634,10 +634,6 @@ CREATE TRIGGER fku_itemAttachments
     -- Make sure parent is a regular item
     SELECT RAISE(ABORT, 'parent is not a regular item') WHERE
     NEW.sourceItemID IS NOT NULL AND (SELECT itemTypeID FROM items WHERE itemID = NEW.sourceItemID) IN (1,14);
-    
-    -- If child, make sure attachment is not in a collection
-    SELECT RAISE(ABORT, 'collection item must be top level') WHERE
-    NEW.sourceItemID IS NOT NULL AND (SELECT COUNT(*) FROM collectionItems WHERE itemID=NEW.itemID)>0;
   END;
 
 -- itemAttachments/sourceItemID
@@ -992,10 +988,6 @@ CREATE TRIGGER fku_itemNotes
     -- Make sure parent is a regular item
     SELECT RAISE(ABORT, 'parent is not a regular item') WHERE
     NEW.sourceItemID IS NOT NULL AND (SELECT itemTypeID FROM items WHERE itemID = NEW.sourceItemID) IN (1,14);
-    
-    -- If child, make sure note is not in a collection
-    SELECT RAISE(ABORT, 'collection item must be top level') WHERE
-    NEW.sourceItemID IS NOT NULL AND (SELECT COUNT(*) FROM collectionItems WHERE itemID=NEW.itemID)>0;
   END;