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Fix: Delete Device Models

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Also purge related Device Components and any Device Model Image
This commit is contained in:
Gary Sharp
2013-02-07 18:57:27 +11:00
parent da6d7a338f
commit 8089544dab
2 changed files with 114 additions and 103 deletions
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Disco.BI/BI/Extensions/DeviceModelExtensions.cs
+112 -101
View File
@@ -1,101 +1,112 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Disco.Models.Repository;
using System.IO;
using System.Drawing;
using Disco.Data.Repository;
namespace Disco.BI.Extensions
{
public static class DeviceModelExtensions
{
public static bool ImageImport(this DeviceModel deviceModel, Stream ImageStream)
{
try
{
using (Bitmap inputBitmap = new Bitmap(ImageStream))
{
using (Image outputBitmap = inputBitmap.ResizeImage(255, 255))
{
using (MemoryStream ms = new MemoryStream())
{
outputBitmap.SavePng(ms);
ms.Position = 0;
var deviceModelImagePath = deviceModel.ImageFilePath();
using (var storeStream = new FileStream(deviceModelImagePath, FileMode.Create, FileAccess.Write, FileShare.None))
{
ms.CopyTo(storeStream);
}
//deviceModel.Image = ms.ToArray();
}
}
}
return true;
}
catch (Exception)
{
return false;
}
}
public static FileStream Image(this DeviceModel deviceModel)
{
var deviceModelImagePath = deviceModel.ImageFilePath();
if (File.Exists(deviceModelImagePath))
return new FileStream(deviceModelImagePath, FileMode.Open, FileAccess.Read, FileShare.Read);
else
return null;
}
public static string ImageFilePath(this DeviceModel deviceModel)
{
var configCache = new Disco.Data.Configuration.ConfigurationContext(null);
var deviceModelImagesDataStore = DataStore.CreateLocation(configCache, "DeviceModelImages");
return Path.Combine(deviceModelImagesDataStore, string.Format("{0}.png", deviceModel.Id));
}
public static string ImageHash(this DeviceModel deviceModel)
{
var deviceModelImagePath = deviceModel.ImageFilePath();
if (File.Exists(deviceModelImagePath))
return File.GetLastWriteTimeUtc(deviceModelImagePath).ToBinary().ToString();
else
return "-1";
}
#region Actions
// Added 2012-11-26 G# - Need ability to delete Device Models
public static bool CanDelete(this DeviceModel dm, DiscoDataContext dbContext)
{
// Can't Delete Default Model (Id: 1)
if (dm.Id == 1)
return false;
// Can't Delete if Contains Devices
if (dbContext.Devices.Count(d => d.DeviceModelId == dm.Id) > 0)
return false;
return true;
}
public static void Delete(this DeviceModel dm, DiscoDataContext dbContext)
{
if (!dm.CanDelete(dbContext))
throw new InvalidOperationException("The state of this Device Model doesn't allow it to be deleted");
// Delete Model
dbContext.DeviceModels.Remove(dm);
}
// End Added 2012-11-26 G#
#endregion
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Disco.Models.Repository;
using System.IO;
using System.Drawing;
using Disco.Data.Repository;
namespace Disco.BI.Extensions
{
public static class DeviceModelExtensions
{
public static bool ImageImport(this DeviceModel deviceModel, Stream ImageStream)
{
try
{
using (Bitmap inputBitmap = new Bitmap(ImageStream))
{
using (Image outputBitmap = inputBitmap.ResizeImage(255, 255))
{
using (MemoryStream ms = new MemoryStream())
{
outputBitmap.SavePng(ms);
ms.Position = 0;
var deviceModelImagePath = deviceModel.ImageFilePath();
using (var storeStream = new FileStream(deviceModelImagePath, FileMode.Create, FileAccess.Write, FileShare.None))
{
ms.CopyTo(storeStream);
}
//deviceModel.Image = ms.ToArray();
}
}
}
return true;
}
catch (Exception)
{
return false;
}
}
public static FileStream Image(this DeviceModel deviceModel)
{
var deviceModelImagePath = deviceModel.ImageFilePath();
if (File.Exists(deviceModelImagePath))
return new FileStream(deviceModelImagePath, FileMode.Open, FileAccess.Read, FileShare.Read);
else
return null;
}
public static string ImageFilePath(this DeviceModel deviceModel)
{
var configCache = new Disco.Data.Configuration.ConfigurationContext(null);
var deviceModelImagesDataStore = DataStore.CreateLocation(configCache, "DeviceModelImages");
return Path.Combine(deviceModelImagesDataStore, string.Format("{0}.png", deviceModel.Id));
}
public static string ImageHash(this DeviceModel deviceModel)
{
var deviceModelImagePath = deviceModel.ImageFilePath();
if (File.Exists(deviceModelImagePath))
return File.GetLastWriteTimeUtc(deviceModelImagePath).ToBinary().ToString();
else
return "-1";
}
#region Actions
// Added 2012-11-26 G# - Need ability to delete Device Models
public static bool CanDelete(this DeviceModel dm, DiscoDataContext dbContext)
{
// Can't Delete Default Model (Id: 1)
if (dm.Id == 1)
return false;
// Can't Delete if Contains Devices
if (dbContext.Devices.Count(d => d.DeviceModelId == dm.Id) > 0)
return false;
return true;
}
public static void Delete(this DeviceModel dm, DiscoDataContext dbContext)
{
if (!dm.CanDelete(dbContext))
throw new InvalidOperationException("The state of this Device Model doesn't allow it to be deleted");
// Delete Image
var deviceModelImagePath = dm.ImageFilePath();
if (File.Exists(deviceModelImagePath))
File.Delete(deviceModelImagePath);
// Delete any Device Model Components
foreach (var deviceModelComponent in dbContext.DeviceComponents.Where(dc => dc.DeviceModelId == dm.Id).ToList())
{
dbContext.DeviceComponents.Remove(deviceModelComponent);
}
// Delete Model
dbContext.DeviceModels.Remove(dm);
}
// End Added 2012-11-26 G#
#endregion
}
}
Disco.BI/Properties/AssemblyInfo.cs
+2 -2
View File
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.2.0207.1727")]
[assembly: AssemblyFileVersion("1.2.0207.1727")]
[assembly: AssemblyVersion("1.2.0207.1853")]
[assembly: AssemblyFileVersion("1.2.0207.1853")]