[英]Android Realm database delete builder
我在我的項目中用Realm
替換了ORMLite
。
我們有RealmQuery
for QueryBuilder
有什么和DeleteBuilder
類似?
如何使用Realm API替換DeleteBuilder查詢
據我所知,Realm僅支持刪除表和數據庫本身。 如果我必須通過一些查詢刪除記錄該怎么辦(就像我們使用DeleteBuilder一樣)
沒有這樣的DeleteBuilder,而是在大多數Realm類上都有刪除方法:
Foo obj = realm.where(Foo.class).findFirst(); // Find a single object;
obj.deleteFromRealm(); // Delete the object from Realm
RealmResults<Foo> list = realm.where(Foo.class).findAll(); // Find all objects;
list.deleteAllFromRealm(); // delete all items that matched your query
list.deleteFromRealm(0); // Delete item at specific index.
realm.delete(Foo.class); // delete all Foo's
realm.deleteAll(); // delete all data in Realm but preserve the schema
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