diff options
Diffstat (limited to 'src/de/gultsch/chat/persistance')
| -rw-r--r-- | src/de/gultsch/chat/persistance/DatabaseBackend.java | 72 |
1 files changed, 46 insertions, 26 deletions
diff --git a/src/de/gultsch/chat/persistance/DatabaseBackend.java b/src/de/gultsch/chat/persistance/DatabaseBackend.java index 677ab748f..85c6df521 100644 --- a/src/de/gultsch/chat/persistance/DatabaseBackend.java +++ b/src/de/gultsch/chat/persistance/DatabaseBackend.java @@ -26,18 +26,23 @@ public class DatabaseBackend extends SQLiteOpenHelper { @Override public void onCreate(SQLiteDatabase db) { + db.execSQL("PRAGMA foreign_keys=ON;"); + db.execSQL("create table " + Account.TABLENAME + "(" + Account.UUID + + " TEXT PRIMARY KEY," + Account.USERNAME + " TEXT," + Account.SERVER + + " TEXT," + Account.PASSWORD + " TEXT)"); db.execSQL("create table " + Conversation.TABLENAME + " (" + Conversation.UUID + " TEXT PRIMARY KEY, " + Conversation.NAME + " TEXT, " + Conversation.PHOTO_URI + " TEXT, " + Conversation.ACCOUNT + " TEXT, " + Conversation.CONTACT + " TEXT, " + Conversation.CREATED + " NUMBER, " - + Conversation.STATUS + " NUMBER)"); + + Conversation.STATUS + " NUMBER," + + "FOREIGN KEY("+Conversation.ACCOUNT+") REFERENCES "+Account.TABLENAME+"("+Account.UUID+") ON DELETE CASCADE);"); db.execSQL("create table " + Message.TABLENAME + "( " + Message.UUID - + " TEXT PRIMARY KEY, " + Message.CONVERSATION + " TEXT, " + Message.TIME_SENT +" NUMBER, " - + Message.COUNTERPART + " TEXT, " + Message.BODY + " TEXT, " - + Message.ENCRYPTION + " NUMBER, " + Message.STATUS - + " NUMBER)"); - db.execSQL("create table "+Account.TABLENAME+"("+Account.UUID+" TEXT,"+Account.USERNAME+" TEXT,"+Account.SERVER+" TEXT,"+Account.PASSWORD+" TEXT)"); + + " TEXT PRIMARY KEY, " + Message.CONVERSATION + " TEXT, " + + Message.TIME_SENT + " NUMBER, " + Message.COUNTERPART + + " TEXT, " + Message.BODY + " TEXT, " + Message.ENCRYPTION + + " NUMBER, " + Message.STATUS + " NUMBER," + + "FOREIGN KEY("+Message.CONVERSATION+") REFERENCES "+Conversation.TABLENAME+"("+Message.UUID+") ON DELETE CASCADE);"); } @Override @@ -62,16 +67,17 @@ public class DatabaseBackend extends SQLiteOpenHelper { SQLiteDatabase db = this.getWritableDatabase(); db.insert(Message.TABLENAME, null, message.getContentValues()); } - + public void createAccount(Account account) { SQLiteDatabase db = this.getWritableDatabase(); - db.insert(Account.TABLENAME,null, account.getContentValues()); + db.insert(Account.TABLENAME, null, account.getContentValues()); } public int getConversationCount() { SQLiteDatabase db = this.getReadableDatabase(); - Cursor cursor = db.rawQuery( - "select count(uuid) as count from "+Conversation.TABLENAME+" where "+Conversation.STATUS+"="+Conversation.STATUS_AVAILABLE, null); + Cursor cursor = db.rawQuery("select count(uuid) as count from " + + Conversation.TABLENAME + " where " + Conversation.STATUS + + "=" + Conversation.STATUS_AVAILABLE, null); cursor.moveToFirst(); return cursor.getInt(0); } @@ -93,9 +99,10 @@ public class DatabaseBackend extends SQLiteOpenHelper { List<Message> list = new ArrayList<Message>(); SQLiteDatabase db = this.getReadableDatabase(); String[] selectionArgs = { conversation.getUuid() }; - Cursor cursor = db.query(Message.TABLENAME, null,Message.CONVERSATION +"=?", selectionArgs, null, null, - Message.TIME_SENT+" DESC",String.valueOf(limit)); - if (cursor.getCount() > 0 ) { + Cursor cursor = db.query(Message.TABLENAME, null, Message.CONVERSATION + + "=?", selectionArgs, null, null, Message.TIME_SENT + " DESC", + String.valueOf(limit)); + if (cursor.getCount() > 0) { cursor.moveToLast(); do { list.add(Message.fromCursor(cursor)); @@ -106,24 +113,29 @@ public class DatabaseBackend extends SQLiteOpenHelper { public Conversation findConversation(Account account, Contact contact) { SQLiteDatabase db = this.getReadableDatabase(); - String[] selectionArgs = { account.getUuid() , contact.getJid() }; - Cursor cursor = db.query(Conversation.TABLENAME, null,Conversation.ACCOUNT+"=? AND "+Conversation.CONTACT+"=?", selectionArgs, null, null, null); - if (cursor.getCount() == 0) return null; + String[] selectionArgs = { account.getUuid(), contact.getJid() }; + Cursor cursor = db.query(Conversation.TABLENAME, null, + Conversation.ACCOUNT + "=? AND " + Conversation.CONTACT + "=?", + selectionArgs, null, null, null); + if (cursor.getCount() == 0) + return null; cursor.moveToFirst(); return Conversation.fromCursor(cursor); } public void updateConversation(Conversation conversation) { SQLiteDatabase db = this.getWritableDatabase(); - String[] args = {conversation.getUuid()}; - db.update(Conversation.TABLENAME, conversation.getContentValues(),Conversation.UUID+"=?",args); + String[] args = { conversation.getUuid() }; + db.update(Conversation.TABLENAME, conversation.getContentValues(), + Conversation.UUID + "=?", args); } - + public List<Account> getAccounts() { List<Account> list = new ArrayList<Account>(); SQLiteDatabase db = this.getReadableDatabase(); - Cursor cursor = db.query(Account.TABLENAME, null, null, null, null, null, null); - Log.d("gultsch","found "+cursor.getCount()+" accounts"); + Cursor cursor = db.query(Account.TABLENAME, null, null, null, null, + null, null); + Log.d("gultsch", "found " + cursor.getCount() + " accounts"); while (cursor.moveToNext()) { list.add(Account.fromCursor(cursor)); } @@ -132,15 +144,23 @@ public class DatabaseBackend extends SQLiteOpenHelper { public void updateAccount(Account account) { SQLiteDatabase db = this.getWritableDatabase(); - String[] args = {account.getUuid()}; - db.update(Account.TABLENAME, account.getContentValues(),Account.UUID+"=?",args); + String[] args = { account.getUuid() }; + db.update(Account.TABLENAME, account.getContentValues(), Account.UUID + + "=?", args); } public void deleteAccount(Account account) { SQLiteDatabase db = this.getWritableDatabase(); - String[] args = {account.getUuid()}; - Log.d("gultsch","backend trying to delete account with uuid:"+account.getUuid()); - db.delete(Account.TABLENAME,Account.UUID+"=?",args); + String[] args = { account.getUuid() }; + Log.d("gultsch", "backend trying to delete account with uuid:" + + account.getUuid()); + db.delete(Account.TABLENAME, Account.UUID + "=?", args); } + @Override + public SQLiteDatabase getWritableDatabase() { + SQLiteDatabase db = super.getWritableDatabase(); + db.execSQL("PRAGMA foreign_keys=ON;"); + return db; + } } |