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POLINQ to SQL not updating database records in MVC 2 application
 

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  1. POLINQ to SQL not updating database records in MVC 2 application
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    <p>Using MVC 2 I have been trying to make this record store project. Creating records work but updating them doesn't. No exceptions are thrown either.</p> <p>I examined getchangeset() right before submitchanges() it shows all zeros.</p> <p>Thanks for your reading and you help :)</p> <p>The Edit view:</p> <pre><code>&lt;% using (Html.BeginForm("Edit", "Song")) { %&gt; &lt;fieldset&gt; &lt;%: Html.HiddenFor(model =&gt; model.SongID) %&gt; &lt;%: Html.HiddenFor(model =&gt; model.DownloadCount) %&gt; &lt;%: Html.HiddenFor(model =&gt; model.Rating) %&gt; &lt;%: Html.HiddenFor(model =&gt; model.TagMapID) %&gt; &lt;div class="editor-label"&gt; &lt;%= Html.LabelFor(model =&gt; model.AlbumID) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%= Html.DropDownListFor(model =&gt; model.AlbumID, DataHelper.getAlbumList(Model.AlbumID)) %&gt; &lt;%= Html.ValidationMessageFor(model =&gt; model.AlbumID) %&gt; &lt;/div&gt; &lt;div class="editor-label"&gt; &lt;%= Html.LabelFor(model =&gt; model.FullName) %&gt; &lt;/div&gt; &lt;div class="editor-field"&gt; &lt;%= Html.TextBoxFor(model =&gt; model.FullName)%&gt; &lt;%= Html.ValidationMessageFor(model =&gt; model.FullName) %&gt; and so on... </code></pre> <p>Edit function</p> <pre><code>public ActionResult Edit(int id) { try { var model = songRepository.Song.Single(rec =&gt; rec.SongID == id); return View(model); } catch (Exception anyEx) { throw anyEx; //return View("Error") } } </code></pre> <p>Edit post function</p> <pre><code>[AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(Song model) { try { if (ModelState.IsValid) { songRepository.SaveSong(model); TempData["adminmsg"] = "Song saved"; return RedirectToAction("List", "Song"); } else { TempData["adminmsg"] = "Song not saved"; return View("Edit", model); } } catch (Exception anyEx) { throw anyEx; } } </code></pre> <p>This is what saveSong() looks like in SqlSongRepository</p> <pre><code>public void SaveSong(Song song) { if (song.SongID == 0) { songTable.InsertOnSubmit(song); } else { songTable.Attach(song); songTable.Context.Refresh(RefreshMode.KeepChanges, song); } songTable.Context.SubmitChanges(); } </code></pre> <p>[Context things]</p> <p>This is the context repository</p> <pre><code>public class ContextRepository : IContextRepository { private string connStr; public ContextRepository(string connectionString) { this.connStr = connectionString; } public DataContext MasterContext { get { return new DataContext(connectionString); } } public string connectionString { get { return connStr; } } } </code></pre> <p>In the song controller for example</p> <pre><code>public SongController(IContextRepository contextRepository) { this.contextRepository = contextRepository; MasterContext = this.contextRepository.MasterContext; DataHelper.InitContext(contextRepository); songRepository = new SqlSongRepository(contextRepository.connectionString); } </code></pre> <p>Then the songRepository is used as I posted before.</p>
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    1. COcould this be happening because of the way I initialize my context? I'll post it in a while.
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