2014-01-24 23:58:51 +01:00
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package de.gultsch.chat.persistance;
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import java.util.ArrayList;
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import java.util.List;
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import de.gultsch.chat.entities.Conversation;
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2014-01-26 03:27:55 +01:00
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import de.gultsch.chat.entities.Message;
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2014-01-24 23:58:51 +01:00
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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public class DatabaseBackend extends SQLiteOpenHelper {
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2014-01-26 03:27:55 +01:00
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2014-01-24 23:58:51 +01:00
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private static DatabaseBackend instance = null;
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2014-01-26 03:27:55 +01:00
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2014-01-24 23:58:51 +01:00
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private static final String DATABASE_NAME = "history";
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private static final int DATABASE_VERSION = 1;
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public DatabaseBackend(Context context) {
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super(context, DATABASE_NAME, null, DATABASE_VERSION);
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}
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@Override
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public void onCreate(SQLiteDatabase db) {
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2014-01-26 03:27:55 +01:00
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db.execSQL("create table " + Conversation.TABLENAME + " ("
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+ Conversation.UUID + " TEXT, " + Conversation.NAME + " TEXT, "
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+ Conversation.PHOTO_URI + " TEXT, " + Conversation.ACCOUNT
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+ " TEXT, " + Conversation.CONTACT + " TEXT, "
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+ Conversation.CREATED + " NUMBER, " + Conversation.STATUS
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+ " NUMBER)");
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db.execSQL("create table "+Message.TABLENAME+ "()");
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2014-01-24 23:58:51 +01:00
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int arg1, int arg2) {
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// TODO Auto-generated method stub
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}
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2014-01-26 03:27:55 +01:00
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2014-01-24 23:58:51 +01:00
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public static synchronized DatabaseBackend getInstance(Context context) {
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if (instance == null) {
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2014-01-25 19:33:12 +01:00
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instance = new DatabaseBackend(context);
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2014-01-24 23:58:51 +01:00
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}
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return instance;
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}
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2014-01-26 03:27:55 +01:00
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2014-01-24 23:58:51 +01:00
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public void addConversation(Conversation conversation) {
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SQLiteDatabase db = this.getWritableDatabase();
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db.insert("conversations", null, conversation.getContentValues());
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}
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2014-01-26 03:27:55 +01:00
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2014-01-24 23:58:51 +01:00
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public int getConversationCount() {
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SQLiteDatabase db = this.getReadableDatabase();
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2014-01-26 03:27:55 +01:00
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Cursor cursor = db.rawQuery(
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"select count(uuid) as count from conversations", null);
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2014-01-24 23:58:51 +01:00
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cursor.moveToFirst();
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return cursor.getInt(0);
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}
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public List<Conversation> getConversations(int status) {
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List<Conversation> list = new ArrayList<Conversation>();
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SQLiteDatabase db = this.getReadableDatabase();
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2014-01-26 03:27:55 +01:00
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String[] selectionArgs = { "" + status };
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Cursor cursor = db
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.rawQuery(
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"select * from conversations where status = ? order by created desc",
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selectionArgs);
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while (cursor.moveToNext()) {
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2014-01-24 23:58:51 +01:00
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list.add(Conversation.fromCursor(cursor));
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}
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return list;
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}
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}
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