FollowTable.java

package com.ch_linghu.fanfoudroid.db;

import java.text.ParseException;

import android.database.Cursor;
import android.provider.BaseColumns;
import android.util.Log;

import com.ch_linghu.fanfoudroid.data.User;

/**
 * Table - Followers
 * 
 */
public final class FollowTable implements BaseColumns {

	public static final String TAG = "FollowTable";

	public static final String TABLE_NAME = "followers";

	public static final String FIELD_USER_NAME = "name";
	public static final String FIELD_USER_SCREEN_NAME = "screen_name";
	public static final String FIELD_LOCALTION = "location";
	public static final String FIELD_DESCRIPTION = "description";
	public static final String FIELD_PROFILE_IMAGE_URL = "profile_image_url";
	public static final String FIELD_URL = "url";
	public static final String FIELD_PROTECTED = "protected";
	public static final String FIELD_FOLLOWERS_COUNT = "followers_count";
	public static final String FIELD_FRIENDS_COUNT = "friends_count";
	public static final String FIELD_FAVORITES_COUNT = "favourites_count";
	public static final String FIELD_STATUSES_COUNT = "statuses_count";
	public static final String FIELD_LAST_STATUS = "last_status";
	public static final String FIELD_CREATED_AT = "created_at";
	public static final String FIELD_FOLLOWING = "following";

	public static final String[] TABLE_COLUMNS = new String[] { _ID,
			FIELD_USER_NAME, FIELD_USER_SCREEN_NAME, FIELD_LOCALTION,
			FIELD_DESCRIPTION, FIELD_PROFILE_IMAGE_URL, FIELD_URL,
			FIELD_PROTECTED, FIELD_FOLLOWERS_COUNT, FIELD_FRIENDS_COUNT,
			FIELD_FAVORITES_COUNT, FIELD_STATUSES_COUNT, FIELD_LAST_STATUS,
			FIELD_CREATED_AT, FIELD_FOLLOWING };

	public static final String CREATE_TABLE = "create table " + TABLE_NAME
			+ " (" + _ID + " text primary key on conflict replace, "
			+ FIELD_USER_NAME + " text not null, " + FIELD_USER_SCREEN_NAME
			+ " text, " + FIELD_LOCALTION + " text, " + FIELD_DESCRIPTION
			+ " text, " + FIELD_PROFILE_IMAGE_URL + " text, " + FIELD_URL
			+ " text, " + FIELD_PROTECTED + " boolean, "
			+ FIELD_FOLLOWERS_COUNT + " integer, " + FIELD_FRIENDS_COUNT
			+ " integer, " + FIELD_FAVORITES_COUNT + " integer, "
			+ FIELD_STATUSES_COUNT + " integer, " + FIELD_LAST_STATUS
			+ " text, " + FIELD_CREATED_AT + " date, " + FIELD_FOLLOWING
			+ " boolean " + ")";

	/**
	 * TODO: 将游标解析为一条用户信息
	 * 
	 * @param cursor
	 *            该方法不会关闭游标
	 * @return 成功返回User类型的单条数据, 失败返回null
	 */
	public static User parseCursor(Cursor cursor) {

		if (null == cursor || 0 == cursor.getCount()) {
			Log.w(TAG, "Cann't parse Cursor, bacause cursor is null or empty.");
			return null;
		}

		User user = new User();

		user.id = cursor.getString(cursor.getColumnIndex(FollowTable._ID));
		user.name = cursor.getString(cursor
				.getColumnIndex(FollowTable.FIELD_USER_NAME));
		user.screenName = cursor.getString(cursor
				.getColumnIndex(FollowTable.FIELD_USER_SCREEN_NAME));
		user.location = cursor.getString(cursor
				.getColumnIndex(FollowTable.FIELD_LOCALTION));
		user.description = cursor.getString(cursor
				.getColumnIndex(FollowTable.FIELD_DESCRIPTION));
		user.profileImageUrl = cursor.getString(cursor
				.getColumnIndex(FollowTable.FIELD_PROFILE_IMAGE_URL));
		user.url = cursor.getString(cursor
				.getColumnIndex(FollowTable.FIELD_URL));
		user.isProtected = (0 == cursor.getInt(cursor
				.getColumnIndex(FollowTable.FIELD_PROTECTED))) ? false : true;
		user.followersCount = cursor.getInt(cursor
				.getColumnIndex(FollowTable.FIELD_FOLLOWERS_COUNT));
		user.lastStatus = cursor.getString(cursor
				.getColumnIndex(FollowTable.FIELD_LAST_STATUS));
		;

		user.friendsCount = cursor.getInt(cursor
				.getColumnIndex(FollowTable.FIELD_FRIENDS_COUNT));
		user.favoritesCount = cursor.getInt(cursor
				.getColumnIndex(FollowTable.FIELD_FAVORITES_COUNT));
		user.statusesCount = cursor.getInt(cursor
				.getColumnIndex(FollowTable.FIELD_STATUSES_COUNT));
		user.isFollowing = (0 == cursor.getInt(cursor
				.getColumnIndex(FollowTable.FIELD_FOLLOWING))) ? false : true;

		try {
			user.createdAt = TwitterDatabase.DB_DATE_FORMATTER.parse(cursor
					.getString(cursor
							.getColumnIndex(MessageTable.FIELD_CREATED_AT)));
		} catch (ParseException e) {
			Log.w(TAG, "Invalid created at data.");
		}

		return user;
	}
}