Hangover. WinForms. Restore deleted books

Source/ApplicationServices/LibraryCommands.cs

@@ -9,7 +9,6 @@ using Dinah.Core;
 using DtoImporterService;
 using LibationFileManager;
 using Serilog;
-using static System.Reflection.Metadata.BlobBuilder;
 using static DtoImporterService.PerfLogger;
 
 namespace ApplicationServices
@@ -336,7 +335,7 @@ namespace ApplicationServices
         }
         #endregion
 
-        #region remove books
+        #region remove/restore books
         public static Task<int> RemoveBooksAsync(List<string> idsToRemove) => Task.Run(() => removeBooks(idsToRemove));
 		public static int RemoveBook(string idToRemove) => removeBooks(new() { idToRemove });
         private static int removeBooks(List<string> idsToRemove)
@@ -368,11 +367,40 @@ namespace ApplicationServices
                 Log.Logger.Error(ex, "Error removing books");
                 throw;
             }
-		}
+        }
-		#endregion
 
-		// call this whenever books are added or removed from library
+        public static int RestoreBooks(this List<LibraryBook> libraryBooks)
-		private static void finalizeLibrarySizeChange() => LibrarySizeChanged?.Invoke(null, null);
+		{
+			try
+            {
+                if (libraryBooks is null || !libraryBooks.Any())
+                    return 0;
+
+                using var context = DbContexts.GetContext();
+
+                // Attach() NoTracking entities before SaveChanges()
+                foreach (var lb in libraryBooks)
+                {
+                    lb.IsDeleted = false;
+                    context.Attach(lb).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+                }
+
+                var qtyChanges = context.SaveChanges();
+                if (qtyChanges > 0)
+                    finalizeLibrarySizeChange();
+
+                return qtyChanges;
+            }
+            catch (Exception ex)
+            {
+                Log.Logger.Error(ex, "Error restoring books");
+                throw;
+            }
+        }
+        #endregion
+
+        // call this whenever books are added or removed from library
+        private static void finalizeLibrarySizeChange() => LibrarySizeChanged?.Invoke(null, null);
 
 		/// <summary>Occurs when the size of the library changes. ie: books are added or removed</summary>
 		public static event EventHandler LibrarySizeChanged;

Source/DataLayer/QueryObjects/LibraryBookQueries.cs

@@ -39,6 +39,19 @@ namespace DataLayer
         public static IQueryable<LibraryBook> GetLibrary(this IQueryable<LibraryBook> library)
             => library
                 .Where(lb => !lb.IsDeleted)
+                .getLibrary();
+
+        public static List<LibraryBook> GetDeletedLibraryBooks(this LibationContext context)
+            => context
+                .LibraryBooks
+                .AsNoTrackingWithIdentityResolution()
+                .Where(lb => lb.IsDeleted)
+                .getLibrary()
+                .ToList();
+
+        /// <summary>This is still IQueryable. YOU MUST CALL ToList() YOURSELF</summary>
+        private static IQueryable<LibraryBook> getLibrary(this IQueryable<LibraryBook> library)
+            => library
                 // owned items are always loaded. eg: book.UserDefinedItem, book.Supplements
                 .Include(le => le.Book).ThenInclude(b => b.SeriesLink).ThenInclude(sb => sb.Series)
                 .Include(le => le.Book).ThenInclude(b => b.ContributorsLink).ThenInclude(c => c.Contributor)

Source/HangoverAvalonia/Views/MainWindow.axaml.cs

@@ -1,3 +1,4 @@
+using AppScaffolding;
 using Avalonia.Controls;
 using HangoverAvalonia.ViewModels;
 
@@ -9,7 +10,11 @@ namespace HangoverAvalonia.Views
 		public MainWindow()
 		{
 			InitializeComponent();
-		}
+
+            var config = LibationScaffolding.RunPreConfigMigrations();
+            LibationScaffolding.RunPostConfigMigrations(config);
+            LibationScaffolding.RunPostMigrationScaffolding(config);
+        }
 
 		public void Execute_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
 		{

Source/HangoverWinForms/Form1.CLI.cs

@@ -11,7 +11,7 @@ namespace HangoverWinForms
 
         private void cliTab_VisibleChanged(object sender, EventArgs e)
         {
-            if (!databaseTab.Visible)
+            if (!cliTab.Visible)
                 return;
         }
     }

Source/HangoverWinForms/Form1.Deleted.cs

@@ -0,0 +1,73 @@
+using ApplicationServices;
+using DataLayer;
+
+namespace HangoverWinForms
+{
+    public partial class Form1
+    {
+        private string deletedCheckedTemplate;
+
+        private void Load_deletedTab()
+        {
+            deletedCheckedTemplate = deletedCheckedLbl.Text;
+        }
+
+        private void deletedTab_VisibleChanged(object sender, EventArgs e)
+        {
+            if (!deletedTab.Visible)
+                return;
+
+            if (deletedCbl.Items.Count == 0)
+                reload();
+        }
+
+        private void deletedCbl_ItemCheck(object sender, ItemCheckEventArgs e)
+        {
+            // CheckedItems.Count is not updated until after the event fires
+            setLabel(e.NewValue);
+        }
+
+        private void checkAllBtn_Click(object sender, EventArgs e)
+        {
+            for (var i = 0; i < deletedCbl.Items.Count; i++)
+                deletedCbl.SetItemChecked(i, true);
+        }
+
+        private void uncheckAllBtn_Click(object sender, EventArgs e)
+        {
+            for (var i = 0; i < deletedCbl.Items.Count; i++)
+                deletedCbl.SetItemChecked(i, false);
+        }
+
+        private void saveBtn_Click(object sender, EventArgs e)
+        {
+            var libraryBooksToRestore = deletedCbl.CheckedItems.Cast<LibraryBook>().ToList();
+            var qtyChanges = libraryBooksToRestore.RestoreBooks();
+            if (qtyChanges > 0)
+                reload();
+        }
+
+        private void reload()
+        {
+            deletedCbl.Items.Clear();
+            var deletedBooks = DbContexts.GetContext().GetDeletedLibraryBooks();
+            foreach (var lb in deletedBooks)
+                deletedCbl.Items.Add(lb);
+
+            setLabel();
+        }
+
+        private void setLabel(CheckState? checkedState = null)
+        {
+            var pre = deletedCbl.CheckedItems.Count;
+            int count = checkedState switch
+            {
+                CheckState.Checked => pre + 1,
+                CheckState.Unchecked => pre - 1,
+                _ => pre,
+            };
+
+            deletedCheckedLbl.Text = string.Format(deletedCheckedTemplate, count, deletedCbl.Items.Count);
+        }
+    }
+}

Source/HangoverWinForms/Form1.Designer.cs

@@ -36,14 +36,23 @@
             this.sqlTb = new System.Windows.Forms.TextBox();
             this.sqlLbl = new System.Windows.Forms.Label();
             this.databaseFileLbl = new System.Windows.Forms.Label();
+            this.deletedTab = new System.Windows.Forms.TabPage();
+            this.deletedCheckedLbl = new System.Windows.Forms.Label();
+            this.label1 = new System.Windows.Forms.Label();
+            this.saveBtn = new System.Windows.Forms.Button();
+            this.uncheckAllBtn = new System.Windows.Forms.Button();
+            this.checkAllBtn = new System.Windows.Forms.Button();
+            this.deletedCbl = new System.Windows.Forms.CheckedListBox();
             this.cliTab = new System.Windows.Forms.TabPage();
             this.tabControl1.SuspendLayout();
             this.databaseTab.SuspendLayout();
+            this.deletedTab.SuspendLayout();
             this.SuspendLayout();
             // 
             // tabControl1
             // 
             this.tabControl1.Controls.Add(this.databaseTab);
+            this.tabControl1.Controls.Add(this.deletedTab);
             this.tabControl1.Controls.Add(this.cliTab);
             this.tabControl1.Dock = System.Windows.Forms.DockStyle.Fill;
             this.tabControl1.Location = new System.Drawing.Point(0, 0);
@@ -119,6 +128,86 @@
             this.databaseFileLbl.TabIndex = 0;
             this.databaseFileLbl.Text = "Database file: ";
             // 
+            // deletedTab
+            // 
+            this.deletedTab.Controls.Add(this.deletedCheckedLbl);
+            this.deletedTab.Controls.Add(this.label1);
+            this.deletedTab.Controls.Add(this.saveBtn);
+            this.deletedTab.Controls.Add(this.uncheckAllBtn);
+            this.deletedTab.Controls.Add(this.checkAllBtn);
+            this.deletedTab.Controls.Add(this.deletedCbl);
+            this.deletedTab.Location = new System.Drawing.Point(4, 24);
+            this.deletedTab.Name = "deletedTab";
+            this.deletedTab.Padding = new System.Windows.Forms.Padding(3);
+            this.deletedTab.Size = new System.Drawing.Size(792, 422);
+            this.deletedTab.TabIndex = 2;
+            this.deletedTab.Text = "Deleted Books";
+            this.deletedTab.UseVisualStyleBackColor = true;
+            // 
+            // deletedCheckedLbl
+            // 
+            this.deletedCheckedLbl.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.deletedCheckedLbl.AutoSize = true;
+            this.deletedCheckedLbl.Location = new System.Drawing.Point(233, 395);
+            this.deletedCheckedLbl.Name = "deletedCheckedLbl";
+            this.deletedCheckedLbl.Size = new System.Drawing.Size(104, 15);
+            this.deletedCheckedLbl.TabIndex = 6;
+            this.deletedCheckedLbl.Text = "Checked: {0} of {1}";
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(8, 3);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(239, 15);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "To restore deleted book, check box and save";
+            // 
+            // saveBtn
+            // 
+            this.saveBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
+            this.saveBtn.Location = new System.Drawing.Point(709, 391);
+            this.saveBtn.Name = "saveBtn";
+            this.saveBtn.Size = new System.Drawing.Size(75, 23);
+            this.saveBtn.TabIndex = 5;
+            this.saveBtn.Text = "Save";
+            this.saveBtn.UseVisualStyleBackColor = true;
+            this.saveBtn.Click += new System.EventHandler(this.saveBtn_Click);
+            // 
+            // uncheckAllBtn
+            // 
+            this.uncheckAllBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.uncheckAllBtn.Location = new System.Drawing.Point(129, 391);
+            this.uncheckAllBtn.Name = "uncheckAllBtn";
+            this.uncheckAllBtn.Size = new System.Drawing.Size(98, 23);
+            this.uncheckAllBtn.TabIndex = 4;
+            this.uncheckAllBtn.Text = "Uncheck All";
+            this.uncheckAllBtn.UseVisualStyleBackColor = true;
+            this.uncheckAllBtn.Click += new System.EventHandler(this.uncheckAllBtn_Click);
+            // 
+            // checkAllBtn
+            // 
+            this.checkAllBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.checkAllBtn.Location = new System.Drawing.Point(8, 391);
+            this.checkAllBtn.Name = "checkAllBtn";
+            this.checkAllBtn.Size = new System.Drawing.Size(98, 23);
+            this.checkAllBtn.TabIndex = 3;
+            this.checkAllBtn.Text = "Check All";
+            this.checkAllBtn.UseVisualStyleBackColor = true;
+            this.checkAllBtn.Click += new System.EventHandler(this.checkAllBtn_Click);
+            // 
+            // deletedCbl
+            // 
+            this.deletedCbl.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
+            | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.deletedCbl.FormattingEnabled = true;
+            this.deletedCbl.Location = new System.Drawing.Point(8, 21);
+            this.deletedCbl.Name = "deletedCbl";
+            this.deletedCbl.Size = new System.Drawing.Size(776, 364);
+            this.deletedCbl.TabIndex = 2;
+            this.deletedCbl.ItemCheck += new System.Windows.Forms.ItemCheckEventHandler(this.deletedCbl_ItemCheck);
+            // 
             // cliTab
             // 
             this.cliTab.Location = new System.Drawing.Point(4, 24);
@@ -140,6 +229,8 @@
             this.tabControl1.ResumeLayout(false);
             this.databaseTab.ResumeLayout(false);
             this.databaseTab.PerformLayout();
+            this.deletedTab.ResumeLayout(false);
+            this.deletedTab.PerformLayout();
             this.ResumeLayout(false);
 
         }
@@ -154,5 +245,12 @@
         private Label sqlLbl;
         private Button sqlExecuteBtn;
         private TabPage cliTab;
+        private TabPage deletedTab;
+        private CheckedListBox deletedCbl;
+        private Label label1;
+        private Button saveBtn;
+        private Button uncheckAllBtn;
+        private Button checkAllBtn;
+        private Label deletedCheckedLbl;
     }
 }

Source/HangoverWinForms/Form1.cs

@@ -1,4 +1,6 @@
-namespace HangoverWinForms
+using AppScaffolding;
+
+namespace HangoverWinForms
 {
     public partial class Form1 : Form
     {
@@ -6,11 +8,17 @@
         {
             InitializeComponent();
 
+            var config = LibationScaffolding.RunPreConfigMigrations();
+            LibationScaffolding.RunPostConfigMigrations(config);
+            LibationScaffolding.RunPostMigrationScaffolding(config);
+
             databaseTab.VisibleChanged += databaseTab_VisibleChanged;
             cliTab.VisibleChanged += cliTab_VisibleChanged;
+            deletedTab.VisibleChanged += deletedTab_VisibleChanged;
 
             Load_databaseTab();
             Load_cliTab();
+            Load_deletedTab();
         }
     }
 }

Source/LibationWinForms/GridView/ProductsGrid.cs

@@ -383,8 +383,7 @@ namespace LibationWinForms.GridView
 
 			if (visibleCount != bindingList.Count)
 				VisibleCountChanged?.Invoke(this, bindingList.BookEntries().Count());
-
+        }
-		}
 
 		#endregion