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package fr.gouv.etalab.mastodon.sqlite;
/* Copyright 2017 Thomas Schneider
*
* This file is a part of Mastalab
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* Mastalab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with Mastalab; if not,
* see <http://www.gnu.org/licenses>. */
import android.content.ContentValues;
import android.content.Context;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import fr.gouv.etalab.mastodon.helper.Helper;
/**
* Created by Thomas on 22/11/2017.
* Manage search in DB
*/
public class SearchDAO {
private SQLiteDatabase db;
public Context context;
private String userId;
public SearchDAO(Context context, SQLiteDatabase db) {
//Creation of the DB with tables
this.context = context;
this.db = db;
SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
userId = sharedpreferences.getString(Helper.PREF_KEY_ID, null);
}
//------- INSERTIONS -------
/**
* Insert a keyword in database
* @param keyword String
*/
public void insertSearch(String keyword) {
ContentValues values = new ContentValues();
values.put(Sqlite.COL_KEYWORDS, keyword);
values.put(Sqlite.COL_USER_ID, userId);
values.put(Sqlite.COL_DATE_CREATION, Helper.dateToString(new Date()));
//Inserts search
try{
db.insert(Sqlite.TABLE_SEARCH, null, values);
}catch (Exception ignored) {}
}
//------- REMOVE -------
/***
* Remove search by keyword
* @return int
*/
public int remove(String keyword){
return db.delete(Sqlite.TABLE_SEARCH, Sqlite.COL_KEYWORDS + " = \"" + keyword + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId+ "\"", null);
}
//------- GETTERS -------
/**
* Returns all search in db for a user
* @return search List<String>
*/
public List<String> getAllSearch(){
try {
Cursor c = db.query(Sqlite.TABLE_SEARCH, null, Sqlite.COL_USER_ID + " = '" + userId+ "'", null, null, null, Sqlite.COL_KEYWORDS + " ASC", null);
return cursorToListSearch(c);
} catch (Exception e) {
return null;
}
}
/**
* Returns search by its keyword in db
* @return keywords List<String>
*/
public List<String> getSearchStartingBy(String keyword){
try {
Cursor c = db.query(Sqlite.TABLE_SEARCH, null, Sqlite.COL_KEYWORDS + " LIKE \"%" + keyword + "%\" AND " + Sqlite.COL_USER_ID + " = \"" + userId+ "\"", null, null, null, null, null);
return cursorToListSearch(c);
} catch (Exception e) {
return null;
}
}
/**
* Returns search by its keyword in db
* @return keywords List<String>
*/
public List<String> getSearchByKeyword(String keyword){
try {
Cursor c = db.query(Sqlite.TABLE_SEARCH, null, Sqlite.COL_KEYWORDS + " = \"" + keyword + "\" AND " + Sqlite.COL_USER_ID + " = \"" + userId+ "\"", null, null, null, null, null);
return cursorToListSearch(c);
} catch (Exception e) {
return null;
}
}
/***
* Method to hydrate stored search from database
* @param c Cursor
* @return List<String>
*/
private List<String> cursorToListSearch(Cursor c){
//No element found
if (c.getCount() == 0)
return null;
List<String> searches = new ArrayList<>();
while (c.moveToNext() ) {
searches.add(c.getString(c.getColumnIndex(Sqlite.COL_KEYWORDS)));
}
//Close the cursor
c.close();
//Search list is returned
return searches;
}
}
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