AccessConfigDao.cs

Contents

Description du code

AccessConfigDao.cs est un fichier du projet BiblioBrol.
Ce fichier est situé dans /var/www/bin/sniplets/bibliobrol/src/.

Projet BiblioBrol :

Gestion de media en CSharp.

Pour plus d'infos, vous pouvez consulter la brève analyse.

Code source ou contenu du fichier

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Text;
  4. using System.Data;
  5. using System.Data.Common;
  6. using be.gaudry.observer;
  7. using be.gaudry.model.exceptions;
  8. using be.gaudry.view;
  9.  
  10. namespace be.gaudry.bibliobrol.model.dao.msaccess
  11. {
  12.     public sealed class AccessConfigDao : Observable, IConfigDao
  13.     {
  14.         #region singleton
  15.         static AccessConfigDao instance = null;
  16.         static readonly object padlock = new object();
  17.         private DbProviderFactory dbpf;
  18.         private String conStr;
  19.         AccessConfigDao()
  20.         {
  21.             dbpf = ((AccessFactory)AccessFactory.Instance).getDbpf();
  22.             conStr = ((AccessFactory)AccessFactory.Instance).getConnectionString();
  23.         }
  24.  
  25.         public static AccessConfigDao Instance
  26.         {
  27.             get
  28.             {
  29.                 lock (padlock)
  30.                 {
  31.                     if (instance == null)
  32.                     {
  33.                         instance = new AccessConfigDao();
  34.                     }
  35.                     return instance;
  36.                 }
  37.             }
  38.         } 
  39.         #endregion
  40.  
  41.         #region IConfigDao Members
  42.  
  43.         public List<BrolType> loadBrolTypes()
  44.         {
  45.             List<BrolType> types = new List<BrolType>();
  46.             DbConnection dbCon = dbpf.CreateConnection();
  47.             DbDataAdapter dbDa = dbpf.CreateDataAdapter();
  48.             dbDa.SelectCommand = dbCon.CreateCommand();
  49.             dbCon.ConnectionString = conStr;
  50.             StringBuilder str = new StringBuilder("SELECT id, name FROM type");
  51.             dbDa.SelectCommand.CommandText = str.ToString();
  52.             notify(new Notification(Notification.VERBOSE.persistentOperation, dbDa.SelectCommand.CommandText, this));
  53.             DataTable typesDt = new DataTable();
  54.             try
  55.             {
  56.                 dbDa.Fill(typesDt);
  57.                 foreach (DataRow row in typesDt.Rows)
  58.                 {
  59.                     types.Add(new BrolType((int)row["id"],(String)row["name"]));
  60.                 }
  61.             }
  62.             catch (Exception e)
  63.             {
  64.                 notify(new Notification(Notification.VERBOSE.error, "Chargement des types", e, this));
  65.             }
  66.             typesDt.Dispose();
  67.             dbCon.Close();
  68.             return types;
  69.         }
  70.  
  71.         public Person loadOwner()
  72.         {
  73.             int ownerId;
  74.             return(Int32.TryParse(loadConfig("ownerId"),out ownerId))?AccessPersonDao.Instance.loadPerson(ownerId, false):new Person();
  75.         }
  76.  
  77.         public bool saveOwner(Person owner)
  78.         {
  79.             if (owner.Id < 0)
  80.             {
  81.                 notify(new Notification(Notification.VERBOSE.error, "Impossible de sauver le propriétaire.", this)); 
  82.                 return false;
  83.             }
  84.             return saveConfig("ownerId", owner.Id.ToString());
  85.         }
  86.  
  87.         public bool saveConfig(String configName, String configValue)
  88.         {
  89.  
  90.             DbConnection dbCon = dbpf.CreateConnection();
  91.             DbDataAdapter dbDa = dbpf.CreateDataAdapter();
  92.             dbDa.UpdateCommand = dbCon.CreateCommand();
  93.             dbCon.ConnectionString = conStr;
  94.             dbCon.Open();
  95.             StringBuilder str = new StringBuilder("UPDATE config SET configValue='");
  96.             str.Append(AccessUtils.escapeAndTrim(configValue));
  97.             str.Append("'");
  98.             str.Append(" WHERE configName='");
  99.             str.Append(AccessUtils.escapeAndTrim(configName));
  100.             str.Append("'");
  101.             dbDa.UpdateCommand.CommandText = str.ToString();
  102.             notify(new Notification(Notification.VERBOSE.persistentOperation, dbDa.UpdateCommand.CommandText, this)); 
  103.             try
  104.             {
  105.                 dbDa.UpdateCommand.ExecuteNonQuery();
  106.             }
  107.             catch (Exception e)
  108.             {
  109.                 notify(new Notification(Notification.VERBOSE.error, "Modification de la configuration", e, this));
  110.                 return false;
  111.             }
  112.             finally
  113.             {
  114.                 dbCon.Close();
  115.             }
  116.             notify(new Notification(Notification.VERBOSE.opsResult, "La configuration est correctement modifiée", this));
  117.             return true;
  118.         }
  119.         public String loadConfig(String configName)
  120.         {
  121.             String configValue;
  122.             DbConnection dbCon = dbpf.CreateConnection();
  123.             DbDataAdapter dbDa = dbpf.CreateDataAdapter();
  124.             dbDa.SelectCommand = dbCon.CreateCommand();
  125.             dbCon.ConnectionString = conStr;
  126.             dbDa.SelectCommand.CommandText = "SELECT configValue FROM config WHERE configName='" + configName + "'";
  127.             notify(new Notification(Notification.VERBOSE.persistentOperation, dbDa.SelectCommand.CommandText, this));
  128.             DataTable dataTable = new DataTable();
  129.             try
  130.             {
  131.                 dbDa.Fill(dataTable);
  132.                 configValue = (String)dataTable.Rows[0]["configValue"];
  133.             }
  134.             catch (Exception e)
  135.             {
  136.                 notify(new Notification(Notification.VERBOSE.error, "Chargement de la configuration", e, this));
  137.                 configValue = "";
  138.             }
  139.             dataTable.Dispose();
  140.             dbCon.Close();
  141.             return configValue;
  142.         }
  143.  
  144.         /// <summary>
  145.         /// Test if the persistance system is available
  146.         /// </summary>
  147.         public void testPersistance()
  148.         {
  149.             Splasher.Status = "Vérification de la base de données";
  150.             bool testPersistence = false;
  151.             DbConnection dbCon = dbpf.CreateConnection();
  152.             DbDataAdapter dbDa = dbpf.CreateDataAdapter();
  153.             dbDa.SelectCommand = dbCon.CreateCommand();
  154.             dbCon.ConnectionString = conStr;
  155.             dbDa.SelectCommand.CommandText = "SELECT id FROM type";
  156.             try
  157.             {
  158.                 dbDa.Fill(new DataTable());
  159.                 testPersistence = true;
  160.             }
  161.             catch (Exception)
  162.             {
  163.                 throw new PersistanceNotFoundException("Base de données Access (" + conStr + ")");
  164.             }
  165.             finally
  166.             {
  167.                 dbCon.Close();
  168.             }
  169.             if (testPersistence)
  170.             {
  171.                 string version = loadConfig("persistanceVersion");
  172.                 switch (version)
  173.                 {
  174.                     case "0.0.1.18":
  175.                         patch080103();
  176.                         break;
  177.                     default: break;
  178.                 }
  179.             }
  180.         }
  181.  
  182.         /// <summary>
  183.         /// insert new category, and return new id to the category object
  184.         /// </summary>
  185.         /// <param name="cat">(BrolCategory) category to insert</param>
  186.         public int insertCategory(BrolCategory cat, BrolType type)
  187.         {
  188.             DbConnection dbCon = dbpf.CreateConnection();
  189.             DbDataAdapter dbDa = dbpf.CreateDataAdapter();
  190.             dbDa.SelectCommand = dbCon.CreateCommand();
  191.             dbCon.ConnectionString = conStr;
  192.             return insertCategory(cat, type, dbCon, dbDa);
  193.         }
  194.         /// <summary>
  195.         /// insert new category, and return new id to the category object
  196.         /// Use existing DbConnection and DbDataAdapter 
  197.         /// </summary>
  198.         /// <param name="cat"></param>
  199.         /// <param name="type"></param>
  200.         /// <param name="dbCon"></param>
  201.         /// <param name="dbDa"></param>
  202.         internal int insertCategory(BrolCategory cat, BrolType type, DbConnection dbCon, DbDataAdapter dbDa)
  203.         {
  204.             StringBuilder str = new StringBuilder();
  205.             str.Append("INSERT INTO category (name typeId) VALUES(");
  206.             str.Append(cat.Name);
  207.             str.Append(",");
  208.             str.Append(type.Id);
  209.             str.Append(");");
  210.             dbDa.InsertCommand = dbCon.CreateCommand();
  211.             dbDa.InsertCommand.CommandText = str.ToString();
  212.             notify(new Notification(Notification.VERBOSE.persistentOperation, dbDa.InsertCommand.CommandText, this));
  213.             try
  214.             {
  215.                 dbDa.InsertCommand.ExecuteNonQuery();
  216.                 //bad smell code : may not work with concurent acces
  217.                 dbDa.InsertCommand.CommandText = "SELECT @@IDENTITY";
  218.                 return (int)dbDa.InsertCommand.ExecuteScalar();
  219.             }
  220.             catch (Exception e)
  221.             {
  222.                 notify(new Notification(Notification.VERBOSE.error, "Ajout d'une catégorie", e, this));
  223.                 return -1;
  224.             }
  225.         }
  226.  
  227.  
  228.         /// <summary>
  229.         /// insert new insertBrolType, and return new id to the insertBrolType object
  230.         /// </summary>
  231.         /// <param name="cat">(BrolCategory) category to insert</param>
  232.         public int insertBrolType(BrolType type)
  233.         {
  234.             DbConnection dbCon = dbpf.CreateConnection();
  235.             DbDataAdapter dbDa = dbpf.CreateDataAdapter();
  236.             dbDa.SelectCommand = dbCon.CreateCommand();
  237.             dbCon.ConnectionString = conStr;
  238.             return insertBrolType(type, dbCon, dbDa);
  239.         }
  240.         /// <summary>
  241.         /// insert new insertBrolType, and return new id to the insertBrolType object
  242.         /// Use existing DbConnection and DbDataAdapter 
  243.         /// </summary>
  244.         /// <param name="cat"></param>
  245.         /// <param name="type"></param>
  246.         /// <param name="dbCon"></param>
  247.         /// <param name="dbDa"></param>
  248.         internal int insertBrolType(BrolType type, DbConnection dbCon, DbDataAdapter dbDa)
  249.         {
  250.             StringBuilder str = new StringBuilder();
  251.             str.Append("INSERT INTO type (name) VALUES(");
  252.             /*str.Append(type.Id);
  253.             str.Append(",");*/
  254.             str.Append(AccessUtils.escapeAndTrim(type.Name));
  255.             str.Append(");");
  256.             dbDa.InsertCommand = dbCon.CreateCommand();
  257.             dbDa.InsertCommand.CommandText = str.ToString();
  258.             notify(new Notification(Notification.VERBOSE.persistentOperation, dbDa.InsertCommand.CommandText, this));
  259.             try
  260.             {
  261.                 dbDa.InsertCommand.ExecuteNonQuery();
  262.                 //bad smell code : may not work with concurent acces
  263.                 dbDa.InsertCommand.CommandText = "SELECT @@IDENTITY";
  264.                 return (int)dbDa.InsertCommand.ExecuteScalar();
  265.             }
  266.             catch (Exception e)
  267.             {
  268.                 notify(new Notification(Notification.VERBOSE.error, "Ajout d'une catégorie", e, this));
  269.                 return -1;
  270.             }
  271.         }
  272.         #endregion
  273.  
  274.         #region db patches
  275.  
  276.         /// <summary>
  277.         /// Adapt field size
  278.         /// </summary>
  279.         private void patch080103()
  280.         {
  281.             Splasher.Status = "Installation de la mise à jour 080103 de la base de données";
  282.             DbConnection dbCon = dbpf.CreateConnection();
  283.             DbDataAdapter dbDa = dbpf.CreateDataAdapter();
  284.             dbDa.UpdateCommand = dbCon.CreateCommand();
  285.             dbCon.ConnectionString = conStr;
  286.             dbCon.Open();
  287.             dbDa.UpdateCommand.CommandText = "ALTER TABLE [actor] ALTER COLUMN [roleValue] TEXT(100)";
  288.             notify(new Notification(Notification.VERBOSE.persistentOperation, dbDa.UpdateCommand.CommandText, this));
  289.             try
  290.             {
  291.                 int r = dbDa.UpdateCommand.ExecuteNonQuery();
  292.                 //if (r==1)
  293.                 //{
  294.                     dbDa.UpdateCommand.CommandText = "UPDATE [config] SET configValue = '0.0.1.19' WHERE configName = 'persistanceVersion'";
  295.                     notify(new Notification(Notification.VERBOSE.persistentOperation, dbDa.UpdateCommand.CommandText, this));
  296.                     r = dbDa.UpdateCommand.ExecuteNonQuery();
  297.                 //}
  298.                     if (r == 1)
  299.                     {
  300.                         Splasher.Status = "La mise à jour 080103 de la base de données vient d'être appliquée.";
  301.                     }
  302.             }
  303.             catch (Exception e)
  304.             {
  305.                 notify(new Notification(Notification.VERBOSE.criticalError, e, this));
  306.             }
  307.             finally
  308.             {
  309.                 dbCon.Close();
  310.             }
  311.         }
  312.         #endregion
  313.     }
  314. }

Structure et Fichiers du projet

Afficher/masquer...


Répertoires contenus dans /var/www/bin/sniplets/bibliobrol/src/model/dao/msaccess/ 
IcôneNomTailleModification
IcôneNomTailleModification
| _ Répertoire parent0 octets1731757669 16/11/2024 12:47:49
| _utils0 octets1541007203 31/10/2018 18:33:23
Fichiers contenus dans /var/www/bin/sniplets/bibliobrol/src/model/dao/msaccess/ 
IcôneNomTailleModificationAction
IcôneNomTailleModificationAction
Afficher le fichier .cs|.csAccessStatsDao.cs10.59 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessImporterDao.cs27.13 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessMediaBrolDao.cs50.3 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessExporterDao.cs33.67 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessTaskDao.cs8.93 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessBrolDao.cs58.26 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessSerieDao.cs6.22 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessConfigDao.cs12.22 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessPersonDao.cs59.94 Ko31/10/2018 18:33:17-refusé-
Afficher le fichier .cs|.csAccessFactory.cs3.35 Ko31/10/2018 18:33:17-refusé-

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Document created the 16/10/2009, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/cs-bibliobrol-source-rf-model/dao/msaccess/AccessConfigDao.cs.html

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