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1 | using System;
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2 |
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3 | namespace Persistence {
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4 | /// <summary>
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5 | /// combines multiple used static methods into one class
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6 | /// </summary>
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7 | public class DatabaseUtil {
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8 | /// <summary>
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9 | /// creates and returns a database connection, if possible
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10 | /// </summary>
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11 | /// <returns>database connection (could be null)</returns>
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12 | public static DataClassesDataContext createDataClassesDataContext() {
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13 | DataClassesDataContext db;
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14 | try {
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15 | db = new Persistence.DataClassesDataContext(@"C:\TEMP\HeuristicLabTest.mdf");
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16 | }
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17 | catch (Exception) {
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18 | return null;
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19 | }
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20 | return db;
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21 | }
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22 |
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23 | /// <summary>
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24 | /// creates a new database out of the LINQ to SQL classes
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25 | /// </summary>
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26 | /// <param name="db">DataClassesDataContext</param>
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27 | public static void createDatabase(DataClassesDataContext db) {
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28 | if (db == null) {
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29 | throw new ArgumentNullException("db");
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30 | }
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31 |
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32 | if (db.DatabaseExists()) {
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33 | Console.WriteLine("Deleting old database...");
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34 | db.DeleteDatabase();
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35 | Console.WriteLine("Deleted old database!");
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36 | }
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37 |
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38 | Console.WriteLine("Creating new database...");
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39 | db.CreateDatabase();
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40 | Console.WriteLine("Created new database!");
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41 | }
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42 | }
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43 | }
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