Add project files.

2026-01-07 10:32:48 +00:00 · 2018-06-21 18:18:04 +02:00
parent 017735cabb
commit 5695d2aa2c
62 changed files with 1645 additions and 0 deletions
--- a/myRoRo/DatabaseHelper.cs
+++ b/myRoRo/DatabaseHelper.cs
@@ -0,0 +1,160 @@
+using Microsoft.Data.Sqlite;
+using System;
+using System.Collections.Generic;
+#if DEBUG
+using System.Diagnostics;
+#endif
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Windows.UI.Xaml.Controls;
+
+namespace myRoRo
+{
+    class DatabaseHelper
+    {
+        public static string DATABASE_NAME = "schedule.db";
+        public static string TABLE_NAME = "day";
+        public string COL_1 = "kl",
+                      COL_2 = "std",
+                      COL_3 = "fach",
+                      COL_4 = "raum",
+                      COL_5 = "vlehrer",
+                      COL_6 = "vfach",
+                      COL_7 = "vraum",
+                      COL_8 = "info";
+
+        public DatabaseHelper()
+        {
+            using (SqliteConnection db = new SqliteConnection("Filename=" + DATABASE_NAME))
+            {
+                db.Open();
+
+                try
+                {
+                    EnsureTableExists(1, db).ExecuteReader();
+                }
+                catch (SqliteException e)
+                {
+                    #if DEBUG
+                        Debug.WriteLine("SQLite Exception: " + e.Message + e.StackTrace);
+                    #endif
+                }
+
+                db.Close();
+            }
+        }
+
+        public void DeleteTable(int index)
+        {
+            using (SqliteConnection db = new SqliteConnection("Filename=" + DATABASE_NAME))
+            {
+                db.Open();
+
+                SqliteCommand insertCommand = new SqliteCommand
+                {
+                    Connection = db,
+                    CommandText = "DROP TABLE IF EXISTS " + TABLE_NAME + index
+                };
+
+                try
+                {
+                    insertCommand.ExecuteReader();
+                }
+                catch (SqliteException e)
+                {
+                    #if DEBUG
+                        Debug.WriteLine("SQLite Exception: " + e.Message + e.StackTrace);
+                    #endif
+                }
+
+                db.Close();
+            }
+        }
+
+        private SqliteCommand EnsureTableExists(int index, SqliteConnection db)
+        {
+            return new SqliteCommand
+            {
+                Connection = db,
+
+                CommandText = "create table if not exists " + TABLE_NAME + index + "(ID INTEGER PRIMARY KEY AUTOINCREMENT,"
+                    + COL_1 + " TEXT,"
+                    + COL_2 + " TEXT,"
+                    + COL_3 + " TEXT,"
+                    + COL_4 + " TEXT,"
+                    + COL_5 + " TEXT,"
+                    + COL_6 + " TEXT,"
+                    + COL_7 + " TEXT,"
+                    + COL_8 + " TEXT)"
+            };
+        }
+
+        public bool InsertData(int tableIndex, 
+            string kl, 
+            string std, 
+            string fach, 
+            string raum,
+            string vlehrer, 
+            string vfach, 
+            string vraum, 
+            string info)
+        {
+
+            using (SqliteConnection db = new SqliteConnection("Filename=" + DATABASE_NAME))
+            {
+                db.Open();
+
+                SqliteCommand insertCommand =  new SqliteCommand
+                {
+                    Connection = db,
+
+                    CommandText = "INSERT INTO " + TABLE_NAME + tableIndex + " ("
+                     + COL_1 + ", "
+                     + COL_2 + ", "
+                     + COL_3 + ", "
+                     + COL_4 + ", "
+                     + COL_5 + ", "
+                     + COL_6 + ", "
+                     + COL_7 + ", "
+                     + COL_8
+
+                     + ") VALUES (@0, @1 , @2, @3, @4, @5, @6, @7)"
+                };
+
+                insertCommand.Parameters.AddWithValue("@0", kl);
+                insertCommand.Parameters.AddWithValue("@1", std);
+                insertCommand.Parameters.AddWithValue("@2", fach);
+                insertCommand.Parameters.AddWithValue("@3", raum);
+                insertCommand.Parameters.AddWithValue("@4", vlehrer);
+                insertCommand.Parameters.AddWithValue("@5", vfach);
+                insertCommand.Parameters.AddWithValue("@6", vraum);
+                insertCommand.Parameters.AddWithValue("@7", info);
+
+                try
+                {
+                    EnsureTableExists(tableIndex, db).ExecuteReader();
+                    insertCommand.ExecuteNonQuery();
+                }
+                catch (SqliteException e)
+                {
+                    #if DEBUG
+                        Debug.WriteLine("SQLite Exception: " + e.Message + e.StackTrace);
+                        /*ContentDialog noWifiDialog = new ContentDialog()
+                        {
+                            Title = "Verbindungsfehler",
+                            Content = "Bitte Netzwerk überprüfen und erneut versuchen. Fehlermeldung:\n" + e.Message + e.StackTrace,
+                            CloseButtonText = "Ok"
+                        };
+
+                        noWifiDialog.ShowAsync();*/
+                    #endif
+                    return false;
+                }
+                db.Close();
+            }
+
+            return true;
+        }
+    }
+}