From 4c6b7686afa8e1bcbdd75a8b76620b380b84437c Mon Sep 17 00:00:00 2001 From: Mary Tran Date: Thu, 25 Oct 2018 16:14:38 -0400 Subject: [PATCH] Added new table for services. Not tested yet --- .../olympus/olympusservices/DBHelper.java | 176 +++++++++++++++--- .../olympus/olympusservices/Service.java | 23 +++ .../olympusservices/DBIntegrationTest.java | 8 +- 3 files changed, 177 insertions(+), 30 deletions(-) diff --git a/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/DBHelper.java b/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/DBHelper.java index 18ed2e6..7d34209 100644 --- a/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/DBHelper.java +++ b/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/DBHelper.java @@ -43,8 +43,11 @@ public class DBHelper extends SQLiteOpenHelper { // private static final String TABLE_SERVICEPROVIDERS = "serviceProviders"; - -// private static final String TABLE_SERVICES = "services"; + //name of table containing services and rates + private static final String TABLE_SERVICES = "services"; + //columns of TABLE_LOGIN + private static final String COLUMN_SERVICE = "service"; + private static final String COLUMN_RATE = "rate"; /** @@ -64,18 +67,25 @@ public class DBHelper extends SQLiteOpenHelper { public void onCreate(SQLiteDatabase db){ String CREATE_LOGIN_TABLE = "CREATE TABLE "+ TABLE_LOGIN + "(" - + COLUMN_USERNAME + " STRING UNIQUE NOT NULL PRIMARY KEY ON CONFLICT ROLLBACK," - + COLUMN_PASSWORD + " STRING NOT NULL," - + COLUMN_FIRSTNAME + " STRING DEFAULT 'FirstName'," - + COLUMN_LASTNAME + " STRING DEFAULT 'LastName'," - + COLUMN_USERTYPE + " STRING NOT NULL" + ")"; + + COLUMN_USERNAME + " TEXT UNIQUE NOT NULL PRIMARY KEY ON CONFLICT ROLLBACK," + + COLUMN_PASSWORD + " TEXT NOT NULL," + + COLUMN_FIRSTNAME + " TEXT DEFAULT 'FirstName'," + + COLUMN_LASTNAME + " TEXT DEFAULT 'LastName'," + + COLUMN_USERTYPE + " TEXT NOT NULL" + ")"; db.execSQL(CREATE_LOGIN_TABLE); + + String CREATE_SERVICES_TABLE = "CREATE TABLE "+ TABLE_SERVICES + "(" + + COLUMN_SERVICE + " TEXT UNIQUE NOT NULL PRIMARY KEY ON CONFLICT ROLLBACK," + + COLUMN_RATE + " REAL DEFAULT 0.0" + ")"; + + db.execSQL(CREATE_SERVICES_TABLE); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){ db.execSQL("DROP TABLE IF EXISTS " + TABLE_LOGIN); + db.execSQL("DROP TABLE IF EXISTS " + TABLE_SERVICES); onCreate(db); } @@ -85,6 +95,8 @@ public class DBHelper extends SQLiteOpenHelper { } + //methods for table of users + /** * Adds a user to the database. Returns false if there is a user already * existing in the database with the same username. Returns true if @@ -188,13 +200,133 @@ public class DBHelper extends SQLiteOpenHelper { new String[]{username}) > 0; } + /** + * Returns a list of String arrays containing the username, first name, + * last name, and user type of every user in TABLE_LOGIN. + * + * @return list of arrays of [username, first name, last name, user type] + */ + public List getAllUsers(){ + return getAll("SELECT " + COLUMN_USERNAME + ", " + + COLUMN_FIRSTNAME + ", " + + COLUMN_LASTNAME + ", " + + COLUMN_USERTYPE + + " FROM "+TABLE_LOGIN); + } + + //methods for table of services + + /** + * Adds a service to the database. Returns false if service already + * exists in the database. + * Returns true if successful in adding service to database. + * + * @param service service to be added + * @return whether adding service was successful + */ + public boolean addService(Service service){ + //Check for duplicate username by querying login table + Cursor cursor = writeDB.query(TABLE_SERVICES, + new String[] {COLUMN_SERVICE}, + COLUMN_SERVICE + " = ?", + new String[]{service.getName()}, + null, null, null, + "1"); + //If cursor has 1+ elements in it, username already exists in table + if (cursor != null && cursor.getCount() > 0){ + cursor.close(); + return false; + } + cursor.close(); + + ContentValues values = new ContentValues(); + values.put(COLUMN_SERVICE, service.getName()); + values.put(COLUMN_RATE, service.getRate()); + writeDB.insert(TABLE_SERVICES, null, values); + return true; + } + + /** + * Looks in database for service with specified, and returns an + * object of Service if found. + * Returns null if no such service found. + * + * @param serviceName service to look up + * @return object representing service found + */ + public Service findService(String serviceName){ + Service service; + Cursor cursor = readDB.rawQuery("SELECT * FROM " + TABLE_SERVICES + + " WHERE " + COLUMN_SERVICE + " = ?", + new String[]{serviceName}); + + if (cursor.moveToFirst()){ + String servName = cursor.getString(0); + double rate = cursor.getDouble(1); + service = new Service(servName, rate); + } else { + service = null; + } + cursor.close(); + return service; + } + + /** + * Updates service rate using a Service object. + * Returns true if a service was found and entry updated. + * Returns false if no service was found. + * + * + * @param service service object containing updated values + * + * @return whether updating service information was successful + */ + public boolean updateService(Service service){ + ContentValues values = new ContentValues(); + values.put(COLUMN_RATE, service.getRate()); + + return writeDB.update(TABLE_SERVICES, values, COLUMN_SERVICE+" = ?", + new String[]{service.getName()}) > 0; + } + + /** + * Updates service rate using input of service name and rate. + * Returns true if a service was found and entry updated. + * Returns false if no service was found. + * + * + * @param name name of service + * @param rate rate of service + * + * @return whether updating service information was successful + */ + public boolean updateService(String name, double rate){ + ContentValues values = new ContentValues(); + if (rate > 0) + values.put(COLUMN_RATE, rate); + + return writeDB.update(TABLE_SERVICES, values, COLUMN_SERVICE+" = ?", + new String[]{name}) > 0; + } + + + /** + * Returns a list of String arrays containing the service categories, + * names and hourly rates. + * + * @return list of arrays of [service, rate] + */ + public List getAllServices(){ + return getAll("SELECT * FROM " + TABLE_SERVICES); + } + /** * Prints all entries of table. One row is printed per line. Columns are * separated by spaces. * * @param tableName name of table to print */ - public void printTable(String tableName){ + void printTable(String tableName){ Cursor cursor = readDB.rawQuery("SELECT * FROM "+tableName, null); cursor.moveToFirst(); for (int i = 0; i getAllUsers(){ - List listOfUsers = new LinkedList<>(); - String[] user; - Cursor cursor = readDB.rawQuery("SELECT " + COLUMN_USERNAME + ", " - + COLUMN_FIRSTNAME + ", " - + COLUMN_LASTNAME + ", " - + COLUMN_USERTYPE - + " FROM "+TABLE_LOGIN, null); + + private List getAll(String rawQuery){ + List list = new LinkedList<>(); + String[] infoArray; + Cursor cursor = readDB.rawQuery(rawQuery,null); if (cursor.moveToFirst()) { for (int i = 0; i < cursor.getCount(); i++) { - user = new String[cursor.getColumnNames().length]; + infoArray = new String[cursor.getColumnNames().length]; for (int j = 0; j < cursor.getColumnNames().length; j++) { - user[j] = cursor.getString(j); + infoArray[j] = cursor.getString(j); } - listOfUsers.add(user); + list.add(infoArray); cursor.moveToNext(); } } cursor.close(); - return listOfUsers; + return list; } + } diff --git a/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/Service.java b/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/Service.java index 991150e..d3b7c03 100644 --- a/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/Service.java +++ b/OlympusServices/app/src/main/java/com/uottawa/olympus/olympusservices/Service.java @@ -1,4 +1,27 @@ package com.uottawa.olympus.olympusservices; public class Service { + private String name; + private double rate; + + Service(String name, double rate) { + this.name = name; + this.rate = rate; + } + + public String getName() { + return name; + } + + public double getRate() { + return rate; + } + + public void setName(String name) { + this.name = name; + } + + public void setRate(double rate) { + this.rate = rate; + } } diff --git a/OlympusServices/app/src/test/java/com/uottawa/olympus/olympusservices/DBIntegrationTest.java b/OlympusServices/app/src/test/java/com/uottawa/olympus/olympusservices/DBIntegrationTest.java index c9c1154..397c1c8 100644 --- a/OlympusServices/app/src/test/java/com/uottawa/olympus/olympusservices/DBIntegrationTest.java +++ b/OlympusServices/app/src/test/java/com/uottawa/olympus/olympusservices/DBIntegrationTest.java @@ -115,10 +115,10 @@ public class DBIntegrationTest { List allUsers = dbHelper.getAllUsers(); for (String[] user : allUsers){ -// for (String s : user){ -// System.out.print(s + " "); -// } -// System.out.println(); +/* for (String s : user){ + System.out.print(s + " "); + } + System.out.println();*/ UserType usertype = dbHelper.findUserByUsername(user[0]); assertEquals(usertype.getFirstname(), user[1]); assertEquals(usertype.getLastname(), user[2]);