package com.jereh;

public class PersonProvider extends ContentProvider {

    private DbOpenHelper openHelper;
    private static final UriMatcher MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
    private static final int PERSONS = 1;
    private static final int PERSON = 2;
    static{
        MATCHER.addURI(
 
"com.jereh.providers.personprovider", "person", PERSONS);    
        //* 根據pesonid來刪除記錄
        MATCHER.addURI("com.jereh.providers.personprovider", "person/#", PERSON);
    }
    @Override
    public boolean onCreate() {
        openHelper = new DbOpenHelper(this.getContext());
        return false
 
;
    }
    @Override
    public Cursor query(Uri uri, String[] projection, String selection,
            String[] selectionArgs, String sortOrder) {
        SQLiteDatabase sqLiteDatabase = openHelper.getReadableDatabase();
        switch (MATCHER.match(uri)) {
        case 1:
            return
 
 sqLiteDatabase.query("person", projection, selection, selectionArgs, null, null, sortOrder);
        case 2:
            long rowid = ContentUris.parseId(uri);
            String where = "personid="+rowid;
            if(selection != null && "".equals(selection.trim())){
                where = selection+"and"+where;
            }
            return sqLiteDatabase.query("person", projection, where, selectionArgs, null, null, sortOrder);
        }
        return null;
    }

    @Override
    public String getType(Uri uri) {
        switch (MATCHER.match(uri)) {
        case 1:
            return "vnd.android.cursor.dir/person";
        case 2:
            return "vnd.android.cursor.item/person";
        }
        return null;
    }

    @Override
    public Uri insert(Uri uri, ContentValues values) {
        SQLiteDatabase sqLiteDatabase = openHelper.getWritableDatabase();
        switch (MATCHER.match(uri)) {
        case 1:
            long rowid = sqLiteDatabase.insert("person", "name", values);
            return ContentUris.withAppendedId(uri, rowid);

        default:
            break;
        }
        return null;
    }

    //* 刪除特定personid行的記錄
    @Override
    public int delete(Uri uri, String selection, String[] selectionArgs) {
        SQLiteDatabase sqLiteDatabase = openHelper.getWritableDatabase();
        switch (MATCHER.match(uri)) {
        case 1:
            return sqLiteDatabase.delete("person", selection, selectionArgs);
        case 2:
            long rowid = ContentUris.parseId(uri);
            String where = "personid="+rowid;
            if(selection != null && "".equals(selection.trim())){
                where = selection+"and"+where;
            }
            return sqLiteDatabase.delete("person", where, selectionArgs);
        }
        return 0;
    }

    @Override
    public int update(Uri uri, ContentValues values, String selection,
            String[] selectionArgs) {
        SQLiteDatabase sqLiteDatabase = openHelper.getWritableDatabase();
        switch (MATCHER.match(uri)) {
        case 1:
            return sqLiteDatabase.update("person", values, selection, selectionArgs);
        case 2:
            long rowid = ContentUris.parseId(uri);
            String where = "personid="+rowid;
            if(selection != null && "".equals(selection.trim())){
                where = selection+"and"+where;
            }
            return sqLiteDatabase.update("person", values, where, selectionArgs);
        }
        return 0;
    }
}