129 lines
4.0 KiB
C#
129 lines
4.0 KiB
C#
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/************************************************************************************
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*
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* Umbraco Data Layer
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* MIT Licensed work
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* <EFBFBD>2008 Ruben Verborgh
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*
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***********************************************************************************/
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using System;
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using System.Resources;
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using umbraco.DataLayer.Utility.Installer;
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using System.Diagnostics;
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namespace SqlCE4Umbraco
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{
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/// <summary>
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/// Database installer for an SQL Server data source.
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/// </summary>
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public class SqlCEInstaller : DefaultInstallerUtility<SqlCEHelper>
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{
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#region Private Constants
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/// <summary>The latest database version this installer supports.</summary>
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private const DatabaseVersion LatestVersionSupported = DatabaseVersion.Version4_1;
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/// <summary>The specifications to determine the database version.</summary>
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private static readonly VersionSpecs[] m_VersionSpecs = new VersionSpecs[] {
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new VersionSpecs("id","umbracoNode", "-21", DatabaseVersion.Version4_1),
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new VersionSpecs("action","umbracoAppTree",DatabaseVersion.Version4),
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new VersionSpecs("description","cmsContentType",DatabaseVersion.Version3),
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new VersionSpecs("id","sysobjects",DatabaseVersion.None) };
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#endregion
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#region Public Properties
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/// <summary>
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/// Gets a value indicating whether the installer can upgrade the data source.
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/// </summary>
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/// <value>
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/// <c>true</c> if the installer can upgrade the data source; otherwise, <c>false</c>.
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/// </value>
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/// <remarks>Empty data sources can't be upgraded, just installed.</remarks>
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public override bool CanUpgrade
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{
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get
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{
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return false;
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}
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}
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#endregion
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#region Protected Properties
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/// <summary>
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/// Gets the version specification for evaluation by DetermineCurrentVersion.
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/// Only first matching specification is taken into account.
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/// </summary>
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/// <value>The version specifications.</value>
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protected override VersionSpecs[] VersionSpecs
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{
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get { return m_VersionSpecs; }
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}
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#endregion
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#region Public Constructors
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/// <summary>
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/// Initializes a new instance of the <see cref="SqlCEInstaller"/> class.
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/// </summary>
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/// <param name="sqlHelper">The SQL helper.</param>
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public SqlCEInstaller(SqlCEHelper sqlHelper) : base(sqlHelper, LatestVersionSupported)
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{ }
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#endregion
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#region DefaultInstaller Members
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/// <summary>
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/// Returns the sql to do a full install
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/// </summary>
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protected override string FullInstallSql
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{
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get { return SqlCEResources.Total; }
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}
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/// <summary>
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/// Returns the sql to do an upgrade
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/// </summary>
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protected override string UpgradeSql
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{
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get
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{
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string upgradeFile = string.Format("{0}_Upgrade", CurrentVersion.ToString());
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return SqlCEResources.ResourceManager.GetString(upgradeFile);
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}
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}
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// We need to override this as the default way of detection a db connection checks for systables that doesn't exist
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// in a CE db
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protected override DatabaseVersion DetermineCurrentVersion()
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{
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DatabaseVersion version = base.DetermineCurrentVersion();
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if (version != DatabaseVersion.Unavailable)
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{
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return version;
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}
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// verify connection
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try
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{
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if (SqlCeApplicationBlock.VerifyConnection(base.SqlHelper.ConnectionString))
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return DatabaseVersion.None;
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}
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catch (Exception e)
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{
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Trace.WriteLine(e.ToString());
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}
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return DatabaseVersion.Unavailable;
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}
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#endregion
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}
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}
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