Feat(DB): DB helpers done
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package com.example.coen390_assignment2.Controllers;
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import android.annotation.SuppressLint;
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import android.content.ContentValues;
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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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import android.widget.Toast;
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import androidx.annotation.Nullable;
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import com.example.coen390_assignment2.Models.Access;
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import com.example.coen390_assignment2.Models.AccessContract;
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import com.example.coen390_assignment2.Models.AccessType;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.ArrayList;
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import java.util.List;
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public class AccessDBHelper extends SQLiteOpenHelper {
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private static final int DATABASE_VERSION = 1;
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private Context context = null;
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public AccessDBHelper(@Nullable Context context) {
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super(context, AccessContract.AccessEntry.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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//Create a table
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String CREATE_COURSE_TABLE = "CREATE TABLE " + AccessContract.AccessEntry.TABLE_NAME + " (" +
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AccessContract.AccessEntry.COLUMN_NAME_ACCESS_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
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AccessContract.AccessEntry.COLUMN_NAME_PROFILE_ID + " INTEGER NOT NULL, " +
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AccessContract.AccessEntry.COLUMN_NAME_ACCESS_TYPE + " TEXT NOT NULL, " +
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AccessContract.AccessEntry.COLUMN_NAME_TIMESTAMP + " TEXT NOT NULL);";
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db.execSQL(CREATE_COURSE_TABLE);
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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//Drop older table
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db.execSQL("DROP TABLE IF EXISTS " + AccessContract.AccessEntry.DATABASE_NAME);
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onCreate(db);
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}
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public long insertAccess(Access access) {
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long id = -1;
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SQLiteDatabase db = this.getWritableDatabase();
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ContentValues contentValues = new ContentValues();
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contentValues.put(AccessContract.AccessEntry.COLUMN_NAME_PROFILE_ID, access.getProfileID());
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contentValues.put(AccessContract.AccessEntry.COLUMN_NAME_ACCESS_TYPE, access.getAccessType().getStringAccessType());
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contentValues.put(AccessContract.AccessEntry.COLUMN_NAME_TIMESTAMP, access.getTimestamp().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME));
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try {
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id = db.insertOrThrow(AccessContract.AccessEntry.TABLE_NAME, null, contentValues);
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} catch (Exception e) {
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Toast.makeText(context, "DB insert failed: " + e.getMessage(), Toast.LENGTH_LONG).show();
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} finally {
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db.close();
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}
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return id;
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}
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public List<Access> getAccessFromProfileID(long profileID) {
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List<Access> accessList = new ArrayList<>();
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try (SQLiteDatabase db = this.getReadableDatabase()) {
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Cursor cursor = null;
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String[] columns = {"AccessId", "ProfileID", "AccessType", "Timestamp"};
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String selection = "ProfileID = ?";
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String[] selectionArgs = {String.valueOf(profileID)};
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String orderBy = "Timestamp";
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cursor = db.query(AccessContract.AccessEntry.TABLE_NAME, columns, selection, selectionArgs, null, null, orderBy);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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do {
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@SuppressLint("Range") int accessId = cursor.getInt(cursor.getColumnIndex(AccessContract.AccessEntry.COLUMN_NAME_ACCESS_ID));
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@SuppressLint("Range") int _profileID = cursor.getInt(cursor.getColumnIndex(AccessContract.AccessEntry.COLUMN_NAME_PROFILE_ID));
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@SuppressLint("Range") String accessType = cursor.getString(cursor.getColumnIndex("AccessType"));
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@SuppressLint("Range") String timestampStr = cursor.getString(cursor.getColumnIndex("Timestamp"));
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// Parse the timestamp string into a LocalDateTime object
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LocalDateTime timestamp = LocalDateTime.parse(timestampStr, DateTimeFormatter.ISO_LOCAL_DATE_TIME);
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Access access = new Access(accessId, _profileID, AccessType.matchEnum(accessType), timestamp);
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accessList.add(access);
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} while (cursor.moveToNext());
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}
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cursor.close();
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}
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} catch (Exception e) {
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Toast.makeText(context, "DB get failed: " + e.getMessage(), Toast.LENGTH_LONG).show();
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}
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return accessList;
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}
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}
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package com.example.coen390_assignment2.Controllers;
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import android.annotation.SuppressLint;
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import android.content.ContentValues;
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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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import android.util.Log;
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import android.widget.Toast;
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import androidx.annotation.Nullable;
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import com.example.coen390_assignment2.Models.StudentProfile;
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import com.example.coen390_assignment2.Models.StudentProfileContract;
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import java.time.LocalDate;
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import java.time.format.DateTimeFormatter;
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import java.util.ArrayList;
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import java.util.List;
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public class StudentProfileDBHelper extends SQLiteOpenHelper {
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private static final int DATABASE_VERSION = 1;
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private Context context = null;
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public StudentProfileDBHelper(@Nullable Context context) {
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super(context, StudentProfileContract.StudentProfileEntry.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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//Create a table
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String CREATE_COURSE_TABLE = "CREATE TABLE " + StudentProfileContract.StudentProfileEntry.TABLE_NAME + " (" + StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_ID + " INTEGER PRIMARY KEY, " + StudentProfileContract.StudentProfileEntry.COLUMN_NAME_SURNAME + " TEXT NOT NULL, " + StudentProfileContract.StudentProfileEntry.COLUMN_NAME_NAME + " TEXT NOT NULL, " + StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_GPA + " REAL NOT NULL, " + StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_CREATION_DATE + " TEXT NOT NULL);";
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db.execSQL(CREATE_COURSE_TABLE);
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Log.d("StudentProfileDBHelper", "onCreate: Created course table" + CREATE_COURSE_TABLE);
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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//Drop older table
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db.execSQL("DROP TABLE IF EXISTS " + StudentProfileContract.StudentProfileEntry.TABLE_NAME);
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onCreate(db);
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}
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public long insertStudentProfile(StudentProfile studentProfile) {
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long id = -1;
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SQLiteDatabase db = this.getWritableDatabase();
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ContentValues contentValues = new ContentValues();
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contentValues.put(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_ID, studentProfile.getProfileID());
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contentValues.put(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_SURNAME, studentProfile.getSurname());
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contentValues.put(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_NAME, studentProfile.getName());
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contentValues.put(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_GPA, studentProfile.getGPA());
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contentValues.put(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_CREATION_DATE, studentProfile.getProfileCreationDate().format(DateTimeFormatter.ISO_LOCAL_DATE));
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try {
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// row id
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id = db.insertOrThrow(StudentProfileContract.StudentProfileEntry.TABLE_NAME, null, contentValues);
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} catch (Exception e) {
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Toast.makeText(context, "DB insert failed: " + e.getMessage(), Toast.LENGTH_LONG).show();
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} finally {
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db.close();
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}
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return id;
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}
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public List<StudentProfile> getAllStudentProfile() {
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SQLiteDatabase db = this.getReadableDatabase();
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Cursor cursor = null;
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List<StudentProfile> studentProfiles = new ArrayList<>();
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try {
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cursor = db.query(StudentProfileContract.StudentProfileEntry.TABLE_NAME, null, null, null, null, null, null);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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do {
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@SuppressLint("Range") int profileID = cursor.getInt(cursor.getColumnIndex(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_ID));
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@SuppressLint("Range") String profileSurname = cursor.getString(cursor.getColumnIndex(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_SURNAME));
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@SuppressLint("Range") String profileName = cursor.getString(cursor.getColumnIndex(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_NAME));
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@SuppressLint("Range") float profileGPA = cursor.getFloat(cursor.getColumnIndex(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_GPA));
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@SuppressLint("Range") String profileCreationDate = cursor.getString(cursor.getColumnIndex(StudentProfileContract.StudentProfileEntry.COLUMN_NAME_PROFILE_CREATION_DATE));
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StudentProfile studentProfile = new StudentProfile(profileSurname, profileName, profileID, profileGPA, LocalDate.parse(profileCreationDate, DateTimeFormatter.ISO_LOCAL_DATE));
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studentProfiles.add(studentProfile);
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} while (cursor.moveToNext());
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}
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cursor.close();
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}
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} catch (Exception e) {
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Toast.makeText(context, "DB get failed: " + e.getMessage(), Toast.LENGTH_LONG).show();
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} finally {
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db.close();
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}
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return studentProfiles;
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}
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}
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package com.example.coen390_assignment2.Models;
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import java.time.LocalDateTime;
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public class Access {
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private int accessID;
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private long profileID;
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private AccessType accessType;
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private LocalDateTime timestamp;
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public Access(int accessID, long profileID, AccessType accessType, LocalDateTime timestamp) {
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this.accessID = accessID;
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this.profileID = profileID;
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this.accessType = accessType;
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this.timestamp = timestamp;
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}
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public int getAccessID() {
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return accessID;
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}
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public void setAccessID(int accessID) {
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this.accessID = accessID;
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}
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public long getProfileID() {
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return profileID;
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}
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public void setProfileID(long profileID) {
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this.profileID = profileID;
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}
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public AccessType getAccessType() {
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return accessType;
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}
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public void setAccessType(AccessType accessType) {
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this.accessType = accessType;
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}
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public LocalDateTime getTimestamp() {
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return timestamp;
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}
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public void setTimestamp(LocalDateTime timestamp) {
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this.timestamp = timestamp;
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}
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}
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package com.example.coen390_assignment2.Models;
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import android.provider.BaseColumns;
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public final class AccessContract {
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private AccessContract(){}
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public static class AccessEntry implements BaseColumns{
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public static final String DATABASE_NAME = "access-entry-db";
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public static final String TABLE_NAME = "access";
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public static final String COLUMN_NAME_ACCESS_ID = "access-id";
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public static final String COLUMN_NAME_PROFILE_ID = "profile-id";
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public static final String COLUMN_NAME_ACCESS_TYPE = "access-type";
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public static final String COLUMN_NAME_TIMESTAMP = "timestamp";
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}
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}
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package com.example.coen390_assignment2.Models;
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public enum AccessType {
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CREATED("Created"),
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OPENED("Opened"),
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CLOSED("Closed"),
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DELETED("Deleted");
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private String accessType;
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AccessType(String accessType) {
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this.accessType = accessType;
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}
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public static AccessType matchEnum(String input) {
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for (AccessType enumValue : AccessType.values()) {
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if (enumValue.getStringAccessType().equals(input)) {
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return enumValue;
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}
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}
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return null;
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}
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public String getStringAccessType() {
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return this.accessType;
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}
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}
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package com.example.coen390_assignment2.Models;
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import java.time.LocalDate;
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public class StudentProfile {
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private long profileID;
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private String name;
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private String surname;
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private float gpa;
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private final LocalDate profileCreationDate;
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public StudentProfile(String surname, String name, long profileID, float gpa, LocalDate profileCreationDate) {
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this.surname = surname;
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this.name = name;
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this.profileID = profileID;
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this.gpa = gpa;
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this.profileCreationDate = profileCreationDate;
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}
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public String getSurname() {
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return this.surname;
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}
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public void setSurname(String surname) {
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this.surname = surname;
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}
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public String getName() {
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return this.name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public long getProfileID() {
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return this.profileID;
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}
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public void setProfileID(long profileID) {
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this.profileID = profileID;
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}
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public float getGPA(){
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return this.gpa;
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}
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public void setGPA(float gpa){
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this.gpa = gpa;
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}
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public LocalDate getProfileCreationDate() {
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return profileCreationDate;
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}
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}
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package com.example.coen390_assignment2.Models;
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import android.provider.BaseColumns;
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public final class StudentProfileContract {
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// To prevent someone from accidentally instantiating the contract class,
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// make the constructor private.
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private StudentProfileContract() {
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}
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/* Inner class that defines the table contents */
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public static class StudentProfileEntry implements BaseColumns {
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public static final String DATABASE_NAME = "student-profile-db";
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public static final String TABLE_NAME = "profile";
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public static final String COLUMN_NAME_PROFILE_ID = "profile-id";
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public static final String COLUMN_NAME_SURNAME = "surname";
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public static final String COLUMN_NAME_NAME = "name";
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public static final String COLUMN_NAME_PROFILE_GPA = "profile-gpa";
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public static final String COLUMN_NAME_PROFILE_CREATION_DATE = "profile-creation-date";
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}
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}
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