2022-03-15 18:00:53 +00:00
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// (c) Copyright Ascensio System SIA 2010-2022
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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namespace ASC.Data.Backup;
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2022-02-09 18:49:52 +00:00
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[Scope]
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public class DbHelper : IDisposable
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2020-10-28 20:02:03 +00:00
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{
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2022-02-09 18:49:52 +00:00
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private readonly DbProviderFactory _factory;
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private readonly DbConnection _connect;
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private readonly DbCommandBuilder _builder;
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private readonly DataTable _columns;
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private readonly bool _mysql;
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2022-05-26 09:01:54 +00:00
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private readonly ILogger<DbHelper> _logger;
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2022-02-09 18:49:52 +00:00
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private readonly TenantDbContext _tenantDbContext;
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private readonly CoreDbContext _coreDbContext;
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private readonly IDictionary<string, string> _whereExceptions
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= new Dictionary<string, string>();
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public DbHelper(
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2022-04-26 17:53:48 +00:00
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ILogger<DbHelper> logger,
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2022-02-09 18:49:52 +00:00
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ConnectionStringSettings connectionString,
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TenantDbContext tenantDbContext,
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CoreDbContext coreDbContext)
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2020-05-28 13:28:51 +00:00
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{
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2022-03-17 10:13:52 +00:00
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_logger = logger;
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2022-02-15 16:56:43 +00:00
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_tenantDbContext = tenantDbContext;
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_coreDbContext = coreDbContext;
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2022-02-09 18:49:52 +00:00
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var file = connectionString.ElementInformation.Source;
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if ("web.connections.config".Equals(Path.GetFileName(file), StringComparison.InvariantCultureIgnoreCase))
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{
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file = CrossPlatform.PathCombine(Path.GetDirectoryName(file), "Web.config");
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}
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var xconfig = XDocument.Load(file);
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var provider = xconfig.XPathSelectElement("/configuration/system.data/DbProviderFactories/add[@invariant='" + connectionString.ProviderName + "']");
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_factory = (DbProviderFactory)Activator.CreateInstance(Type.GetType(provider.Attribute("type").Value, true));
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_builder = _factory.CreateCommandBuilder();
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_connect = _factory.CreateConnection();
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_connect.ConnectionString = connectionString.ConnectionString;
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_connect.Open();
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2022-02-15 16:56:43 +00:00
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_mysql = connectionString.ProviderName.Contains("mysql", StringComparison.OrdinalIgnoreCase);
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if (_mysql)
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2022-02-09 18:49:52 +00:00
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{
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CreateCommand("set @@session.sql_mode = concat(@@session.sql_mode, ',NO_AUTO_VALUE_ON_ZERO')").ExecuteNonQuery();
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}
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_columns = _connect.GetSchema("Columns");
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_whereExceptions["calendar_calendar_item"] = " where calendar_id in (select id from calendar_calendars where tenant = {0}) ";
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_whereExceptions["calendar_calendar_user"] = " where calendar_id in (select id from calendar_calendars where tenant = {0}) ";
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_whereExceptions["calendar_event_item"] = " inner join calendar_events on calendar_event_item.event_id = calendar_events.id where calendar_events.tenant = {0} ";
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_whereExceptions["calendar_event_user"] = " inner join calendar_events on calendar_event_user.event_id = calendar_events.id where calendar_events.tenant = {0} ";
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_whereExceptions["crm_entity_contact"] = " inner join crm_contact on crm_entity_contact.contact_id = crm_contact.id where crm_contact.tenant_id = {0} ";
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_whereExceptions["crm_entity_tag"] = " inner join crm_tag on crm_entity_tag.tag_id = crm_tag.id where crm_tag.tenant_id = {0} ";
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_whereExceptions["files_folder_tree"] = " inner join files_folder on folder_id = id where tenant_id = {0} ";
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_whereExceptions["forum_answer_variant"] = " where answer_id in (select id from forum_answer where tenantid = {0})";
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_whereExceptions["forum_topic_tag"] = " where topic_id in (select id from forum_topic where tenantid = {0})";
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_whereExceptions["forum_variant"] = " where question_id in (select id from forum_question where tenantid = {0})";
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_whereExceptions["projects_project_participant"] = " inner join projects_projects on projects_project_participant.project_id = projects_projects.id where projects_projects.tenant_id = {0} ";
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_whereExceptions["projects_following_project_participant"] = " inner join projects_projects on projects_following_project_participant.project_id = projects_projects.id where projects_projects.tenant_id = {0} ";
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_whereExceptions["projects_project_tag"] = " inner join projects_projects on projects_project_tag.project_id = projects_projects.id where projects_projects.tenant_id = {0} ";
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_whereExceptions["tenants_tenants"] = " where id = {0}";
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_whereExceptions["core_acl"] = " where tenant = {0} or tenant = -1";
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_whereExceptions["core_subscription"] = " where tenant = {0} or tenant = -1";
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_whereExceptions["core_subscriptionmethod"] = " where tenant = {0} or tenant = -1";
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}
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public List<string> GetTables()
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{
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var allowTables = new List<string>
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2022-02-09 18:33:50 +00:00
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{
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"blogs_",
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"bookmarking_",
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"calendar_",
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"core_",
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"crm_",
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"events_",
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"files_",
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"forum_",
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"photo_",
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"projects_",
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"tenants_",
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"webstudio_",
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"wiki_",
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2022-02-09 18:49:52 +00:00
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};
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var disallowTables = new List<string>
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2022-02-09 18:33:50 +00:00
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{
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"core_settings",
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"webstudio_uservisit",
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"webstudio_useractivity",
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"tenants_forbiden",
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2022-02-09 18:49:52 +00:00
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};
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IEnumerable<string> tables;
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if (_mysql)
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{
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tables = ExecuteList(CreateCommand("show tables"));
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}
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else
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{
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tables = _connect
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.GetSchema("Tables")
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.Select(@"TABLE_TYPE <> 'SYSTEM_TABLE'")
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2022-01-21 13:46:30 +00:00
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.Select(row => (string)row["TABLE_NAME"]);
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2022-02-09 18:49:52 +00:00
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}
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return tables
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.Where(t => allowTables.Any(a => t.StartsWith(a)) && !disallowTables.Any(d => t.StartsWith(d)))
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.ToList();
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}
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public DataTable GetTable(string table, int tenant)
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{
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try
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{
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var dataTable = new DataTable(table);
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var adapter = _factory.CreateDataAdapter();
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adapter.SelectCommand = CreateCommand("select " + Quote(table) + ".* from " + Quote(table) + GetWhere(table, tenant));
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2022-05-06 15:49:06 +00:00
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_logger.Debug(adapter.SelectCommand.CommandText);
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2022-02-09 18:49:52 +00:00
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adapter.Fill(dataTable);
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return dataTable;
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}
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catch (Exception error)
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{
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2022-05-06 15:49:06 +00:00
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_logger.ErrorTableString(table, error);
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2022-02-09 18:49:52 +00:00
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throw;
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}
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}
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public void SetTable(DataTable table)
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{
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using var tx = _connect.BeginTransaction();
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try
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{
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if ("tenants_tenants".Equals(table.TableName, StringComparison.InvariantCultureIgnoreCase))
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{
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// remove last tenant
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var tenant = _tenantDbContext.Tenants.LastOrDefault();
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if (tenant != null)
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{
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_tenantDbContext.Tenants.Remove(tenant);
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_tenantDbContext.SaveChanges();
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}
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/* var tenantid = CreateCommand("select id from tenants_tenants order by id desc limit 1").ExecuteScalar();
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CreateCommand("delete from tenants_tenants where id = " + tenantid).ExecuteNonQuery();*/
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if (table.Columns.Contains("mappeddomain"))
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{
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foreach (var r in table.Rows.Cast<DataRow>())
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{
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r[table.Columns["mappeddomain"]] = null;
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if (table.Columns.Contains("id"))
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{
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var tariff = _coreDbContext.Tariffs.FirstOrDefault(t => t.Tenant == tenant.Id);
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tariff.Tenant = (int)r[table.Columns["id"]];
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// CreateCommand("update tenants_tariff set tenant = " + r[table.Columns["id"]] + " where tenant = " + tenantid).ExecuteNonQuery();
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_coreDbContext.Entry(tariff).State = EntityState.Modified;
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_coreDbContext.SaveChanges();
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}
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2022-02-09 18:33:50 +00:00
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}
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2022-02-09 18:49:52 +00:00
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}
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}
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var sql = new StringBuilder("replace into " + Quote(table.TableName) + "(");
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var tableColumns = GetColumnsFrom(table.TableName)
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.Intersect(table.Columns.Cast<DataColumn>().Select(c => c.ColumnName), StringComparer.InvariantCultureIgnoreCase)
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.ToList();
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2022-02-15 16:56:43 +00:00
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tableColumns.ForEach(column => sql.Append($"{Quote(column)}, "));
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2022-02-09 18:49:52 +00:00
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sql.Replace(", ", ") values (", sql.Length - 2, 2);
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var insert = _connect.CreateCommand();
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tableColumns.ForEach(column =>
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{
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2022-02-15 16:56:43 +00:00
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sql.Append($"@{column}, ");
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2022-02-09 18:49:52 +00:00
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var p = insert.CreateParameter();
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p.ParameterName = "@" + column;
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insert.Parameters.Add(p);
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});
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sql.Replace(", ", ")", sql.Length - 2, 2);
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insert.CommandText = sql.ToString();
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foreach (var r in table.Rows.Cast<DataRow>())
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{
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foreach (var c in tableColumns)
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{
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((IDbDataParameter)insert.Parameters["@" + c]).Value = r[c];
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}
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insert.ExecuteNonQuery();
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2022-02-09 18:33:50 +00:00
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}
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2022-02-09 18:49:52 +00:00
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tx.Commit();
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}
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catch (Exception e)
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{
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2022-05-06 15:49:06 +00:00
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_logger.ErrorTable(table, e);
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2022-02-09 18:49:52 +00:00
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}
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}
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public void Dispose()
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{
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_builder.Dispose();
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_connect.Dispose();
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}
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public DbCommand CreateCommand(string sql)
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{
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var command = _connect.CreateCommand();
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command.CommandText = sql;
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return command;
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}
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public List<string> ExecuteList(DbCommand command)
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{
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var list = new List<string>();
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using (var result = command.ExecuteReader())
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{
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while (result.Read())
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2022-02-09 16:46:09 +00:00
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{
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2022-02-09 18:49:52 +00:00
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list.Add(result.GetString(0));
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2022-02-09 16:46:09 +00:00
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}
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2022-02-09 18:49:52 +00:00
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}
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return list;
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}
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private string Quote(string identifier)
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{
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return identifier;
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}
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private IEnumerable<string> GetColumnsFrom(string table)
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{
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if (_mysql)
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{
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return ExecuteList(CreateCommand("show columns from " + Quote(table)));
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}
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else
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{
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2022-02-15 16:56:43 +00:00
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return _columns.Select($"TABLE_NAME = '{table}'")
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.Select(r => r["COLUMN_NAME"].ToString());
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2022-02-09 18:49:52 +00:00
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}
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}
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private string GetWhere(string tableName, int tenant)
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{
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if (tenant == -1)
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{
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return string.Empty;
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}
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2022-02-15 16:56:43 +00:00
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if (_whereExceptions.TryGetValue(tableName.ToLower(), out var exc))
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2022-02-09 18:49:52 +00:00
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{
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2022-02-15 16:56:43 +00:00
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return string.Format(exc, tenant);
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2022-02-09 18:49:52 +00:00
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}
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2022-02-15 16:56:43 +00:00
|
|
|
|
var tenantColumn = GetColumnsFrom(tableName).FirstOrDefault(c => c.StartsWith("tenant", StringComparison.OrdinalIgnoreCase));
|
2022-02-09 16:46:09 +00:00
|
|
|
|
|
2022-02-09 18:49:52 +00:00
|
|
|
|
return tenantColumn != null ?
|
|
|
|
|
" where " + Quote(tenantColumn) + " = " + tenant :
|
|
|
|
|
" where 1 = 0";
|
|
|
|
|
}
|
2020-05-28 13:28:51 +00:00
|
|
|
|
}
|