/Skywave Class Library/Skywave Core/Data/DbCommandHelper.cs

# · C# · 339 lines · 327 code · 9 blank · 3 comment · 16 complexity · d73738b7a23f464825c45366b79f0d00 MD5 · raw file 

    

  1. using System;

    2. 

  2. using System.Collections.Generic;

    3. 

  3. using System.Linq;

    4. 

  4. using System.Text;

    5. 

  5. using System.Data.Common;

    6. 

  6. 

    7. 

  7. namespace Skywave.Data

    8. 

  8. {

    9. 

  9.     public enum DbCommandHelperAdditionalCommands

    10. 

  10.     {

    11. 

  11.         None,

    12. 

  12.         Count,

    13. 

  13.         Sum,

    14. 

  14.         Average

    15. 

  15.     }

    16. 

  16.     public abstract class DbCommandHelper

    17. 

  17.     {

    18. 

  18.         public abstract string FixCommandString(string sqlQ);

    19. 

  19. 

    20. 

  20.         public virtual void FixCommand(DbCommand dbCommand1)

    21. 

  21.         {

    22. 

  22.             string sqlQ = dbCommand1.CommandText;

    23. 

  23.             sqlQ = FixCommandString(sqlQ);

    24. 

  24.             dbCommand1.CommandText = sqlQ;

    25. 

  25.         }

    26. 

  26. 

    27. 

  27.         public SqlCommandString GetSqlCommandString(System.Data.Linq.DataContext dc1, System.Linq.IQueryable qInput1, DbCommandHelperAdditionalCommands additionalCommand, object additionalCommandArgs)

    28. 

  28.         {

    29. 

  29.             return GetSqlCommandString(dc1, qInput1, additionalCommand, additionalCommandArgs, true);

    30. 

  30.         }

    31. 

  31.         public SqlCommandString GetSqlCommandString(System.Data.Linq.DataContext dc1, System.Linq.IQueryable qInput1, DbCommandHelperAdditionalCommands additionalCommand, object additionalCommandArgs, bool fixCommandString)

    32. 

  32.         {

    33. 

  33.             DbCommand dbCommand1 = GetDbCommand(dc1, qInput1, additionalCommand, additionalCommandArgs, fixCommandString);

    34. 

  34.             SqlCommandString r = new SqlCommandString();

    35. 

  35.             r.Params = new List<string>();

    36. 

  36.             r.CommandString = dbCommand1.CommandText;

    37. 

  37.             string paramType, paramValue;

    38. 

  38.             foreach (DbParameter fe1 in dbCommand1.Parameters)

    39. 

  39.             {

    40. 

  40.                 int fe1_Size = (fe1.Size <= 0) ? 1 : fe1.Size;

    41. 

  41.                 switch (fe1.DbType)

    42. 

  42.                 {

    43. 

  43.                     case System.Data.DbType.AnsiString:

    44. 

  44.                         paramType = string.Format("VARCHAR({0})", fe1_Size);

    45. 

  45.                         paramValue = string.Format("'{0}'", fe1.Value);

    46. 

  46.                         break;

    47. 

  47.                     case System.Data.DbType.AnsiStringFixedLength:

    48. 

  48.                         paramType = string.Format("CHAR({0})", fe1_Size);

    49. 

  49.                         paramValue = string.Format("'{0}'", fe1.Value);

    50. 

  50.                         break;

    51. 

  51.                     case System.Data.DbType.Binary:

    52. 

  52.                         paramType = string.Format("BINARY", fe1_Size);

    53. 

  53.                         paramValue = string.Format("{0}", fe1.Value);

    54. 

  54.                         break;

    55. 

  55.                     case System.Data.DbType.Boolean:

    56. 

  56.                         paramType = string.Format("BIT", fe1_Size);

    57. 

  57.                         if (fe1.Value is bool)

    58. 

  58.                             paramValue = ((bool)fe1.Value) ? "1" : "0";

    59. 

  59.                         else

    60. 

  60.                             paramValue = string.Format("{0}", fe1.Value);

    61. 

  61.                         break;

    62. 

  62.                     case System.Data.DbType.Byte:

    63. 

  63.                         paramType = string.Format("TINYINT", fe1_Size);

    64. 

  64.                         paramValue = string.Format("{0}", fe1.Value);

    65. 

  65.                         break;

    66. 

  66.                     case System.Data.DbType.Time:

    67. 

  67.                     case System.Data.DbType.Date:

    68. 

  68.                     case System.Data.DbType.DateTime:

    69. 

  69.                     case System.Data.DbType.DateTime2:

    70. 

  70.                     case System.Data.DbType.DateTimeOffset:

    71. 

  71.                         paramType = "DATETIME";

    72. 

  72.                         if (fe1.Value is DateTime)

    73. 

  73.                             paramValue = string.Format("'{0}'", ((DateTime)fe1.Value).ToString("yyyy-MM-ddTHH:mm:ss.fff"));

    74. 

  74.                         else

    75. 

  75.                             paramValue = string.Format("{0}", fe1.Value);

    76. 

  76.                         break;

    77. 

  77.                     case System.Data.DbType.Decimal:

    78. 

  78.                         paramType = string.Format("DECIMAL", fe1_Size);

    79. 

  79.                         paramValue = string.Format("{0}", fe1.Value);

    80. 

  80.                         break;

    81. 

  81.                     case System.Data.DbType.Double:

    82. 

  82.                         paramType = string.Format("FLOAT", fe1_Size);

    83. 

  83.                         paramValue = string.Format("{0}", fe1.Value);

    84. 

  84.                         break;

    85. 

  85.                     case System.Data.DbType.Int16:

    86. 

  86.                         paramType = string.Format("SMALLINT", fe1_Size);

    87. 

  87.                         paramValue = string.Format("{0}", fe1.Value);

    88. 

  88.                         break;

    89. 

  89.                     case System.Data.DbType.Int32:

    90. 

  90.                         paramType = string.Format("INT", fe1_Size);

    91. 

  91.                         paramValue = string.Format("{0}", fe1.Value);

    92. 

  92.                         break;

    93. 

  93.                     case System.Data.DbType.Int64:

    94. 

  94.                         paramType = string.Format("BIGINT", fe1_Size);

    95. 

  95.                         paramValue = string.Format("{0}", fe1.Value);

    96. 

  96.                         break;

    97. 

  97.                     case System.Data.DbType.SByte:

    98. 

  98.                         paramType = string.Format("TINYINT", fe1_Size);

    99. 

  99.                         paramValue = string.Format("{0}", fe1.Value);

    100. 

  100.                         break;

    101. 

  101.                     case System.Data.DbType.Single:

    102. 

  102.                         paramType = string.Format("REAL", fe1_Size);

    103. 

  103.                         paramValue = string.Format("{0}", fe1.Value);

    104. 

  104.                         break;

    105. 

  105.                     case System.Data.DbType.String:

    106. 

  106.                         paramType = string.Format("NVARCHAR({0})", fe1_Size);

    107. 

  107.                         paramValue = string.Format("N'{0}'", fe1.Value);

    108. 

  108.                         break;

    109. 

  109.                     case System.Data.DbType.StringFixedLength:

    110. 

  110.                         paramType = string.Format("NCHAR({0})", fe1_Size);

    111. 

  111.                         paramValue = string.Format("N'{0}'", fe1.Value);

    112. 

  112.                         break;

    113. 

  113.                     case System.Data.DbType.UInt16:

    114. 

  114.                         paramType = string.Format("INT", fe1_Size);

    115. 

  115.                         paramValue = string.Format("{0}", fe1.Value);

    116. 

  116.                         break;

    117. 

  117.                     case System.Data.DbType.UInt32:

    118. 

  118.                         paramType = string.Format("BIGINT", fe1_Size);

    119. 

  119.                         paramValue = string.Format("{0}", fe1.Value);

    120. 

  120.                         break;

    121. 

  121.                     case System.Data.DbType.UInt64:

    122. 

  122.                         paramType = string.Format("NUMERIC(8,0)", fe1_Size);

    123. 

  123.                         paramValue = string.Format("{0}", fe1.Value);

    124. 

  124.                         break;

    125. 

  125.                     case System.Data.DbType.VarNumeric:

    126. 

  126.                         paramType = string.Format("NUMERIC", fe1_Size);

    127. 

  127.                         paramValue = string.Format("{0}", fe1.Value);

    128. 

  128.                         break;

    129. 

  129.                     case System.Data.DbType.Xml:

    130. 

  130.                     case System.Data.DbType.Object:

    131. 

  131.                     case System.Data.DbType.Guid:

    132. 

  132.                     case System.Data.DbType.Currency:

    133. 

  133.                     default:

    134. 

  134.                         paramType = "";

    135. 

  135.                         paramValue = "";

    136. 

  136.                         break;

    137. 

  137.                 }

    138. 

  138.                 //

    139. 

  139.                 if (fe1.Value == null)

    140. 

  140.                     paramValue = "NULL";

    141. 

  141.                 //

    142. 

  142.                 if (!string.IsNullOrEmpty(paramType))

    143. 

  143.                     r.Params.Add(string.Format("{0} {1} = {2}", fe1.ParameterName, paramType, paramValue));

    144. 

  144.             }

    145. 

  145.             return r;

    146. 

  146.         }

    147. 

  147. 

    148. 

  148.         public DbCommand GetDbCommand(System.Data.Linq.DataContext dc1, System.Linq.IQueryable qInput1, DbCommandHelperAdditionalCommands additionalCommand, object additionalCommandArgs)

    149. 

  149.         {

    150. 

  150.             return GetDbCommand(dc1, qInput1, additionalCommand, additionalCommandArgs, true);

    151. 

  151.         }

    152. 

  152.         public DbCommand GetDbCommand(System.Data.Linq.DataContext dc1, System.Linq.IQueryable qInput1, DbCommandHelperAdditionalCommands additionalCommand, object additionalCommandArgs, bool fixCommandString)

    153. 

  153.         {

    154. 

  154.             DbCommand dbCommand1 = dc1.GetCommand(qInput1);

    155. 

  155.             if (fixCommandString)

    156. 

  156.                 FixCommand(dbCommand1);

    157. 

  157. 

    158. 

  158.             string str1;

    159. 

  159.             string sqlQ = dbCommand1.CommandText;

    160. 

  160.             switch (additionalCommand)

    161. 

  161.             {

    162. 

  162.                 case DbCommandHelperAdditionalCommands.Count:

    163. 

  163.                     str1 = "*";

    164. 

  164.                     if (additionalCommandArgs is string && !string.IsNullOrEmpty((string)additionalCommandArgs))

    165. 

  165.                         str1 = (string)additionalCommandArgs;

    166. 

  166.                     sqlQ = string.Format("SELECT COUNT({0}) FROM ({1}) AS maT1", str1, sqlQ);

    167. 

  167.                     break;

    168. 

  168.                 case DbCommandHelperAdditionalCommands.Sum:

    169. 

  169.                     str1 = "value";

    170. 

  170.                     if (additionalCommandArgs is string && !string.IsNullOrEmpty((string)additionalCommandArgs))

    171. 

  171.                         str1 = (string)additionalCommandArgs;

    172. 

  172.                     sqlQ = string.Format("SELECT SUM({0}) FROM ({1}) AS maT1", str1, sqlQ);

    173. 

  173.                     break;

    174. 

  174.                 case DbCommandHelperAdditionalCommands.Average:

    175. 

  175.                     break;

    176. 

  176.                 case DbCommandHelperAdditionalCommands.None:

    177. 

  177.                 default:

    178. 

  178.                     break;

    179. 

  179.             }

    180. 

  180.             dbCommand1.CommandText = sqlQ;

    181. 

  181. 

    182. 

  182.             return dbCommand1;

    183. 

  183.         }

    184. 

  184. 

    185. 

  185.         public void ChangeParametersNames(System.Data.Common.DbCommand toChange, DbCommand usedParametersContainer)

    186. 

  186.         { ChangeParametersNames(toChange, new List<DbCommand>() { usedParametersContainer }); }

    187. 

  187.         public void ChangeParametersNames(System.Data.Common.DbCommand toChange, List<DbCommand> usedParametersContainers)

    188. 

  188.         {

    189. 

  189.             List<string> usedParameterNames = new List<string>();

    190. 

  190.             foreach (DbCommand fe1 in usedParametersContainers)

    191. 

  191.             {

    192. 

  192.                 usedParameterNames = usedParameterNames.Union((from x1 in fe1.Parameters.Cast<DbParameter>()

    193. 

  193.                                                                select x1.ParameterName)).ToList();

    194. 

  194.             }

    195. 

  195.             ChangeParametersNames(toChange, usedParameterNames);

    196. 

  196.         }

    197. 

  197.         public void ChangeParametersNames(System.Data.Common.DbCommand toChange, List<string> usedParameterNames)

    198. 

  198.         {

    199. 

  199.             int i = 1;

    200. 

  200.             string oldParam;

    201. 

  201.             string newParam;

    202. 

  202.             Dictionary<string, string> replacements = new Dictionary<string, string>();

    203. 

  203.             int j = 1;

    204. 

  204.             foreach (System.Data.Common.DbParameter fe1 in toChange.Parameters)

    205. 

  205.             {

    206. 

  206.                 oldParam = fe1.ParameterName;

    207. 

  207.                 newParam = oldParam;

    208. 

  208.                 while (usedParameterNames.Contains(newParam))

    209. 

  209.                 {

    210. 

  210.                     newParam = string.Format("@p{0}", i);

    211. 

  211.                     i++;

    212. 

  212.                 }

    213. 

  213.                 usedParameterNames.Add(newParam);

    214. 

  214.                 fe1.ParameterName = newParam;

    215. 

  215.                 toChange.CommandText = toChange.CommandText.Replace(oldParam, string.Format("$maP{0}$", j));

    216. 

  216.                 replacements.Add(string.Format("$maP{0}$", j), newParam);

    217. 

  217.                 j++;

    218. 

  218.             }

    219. 

  219.             foreach (string fe1 in replacements.Keys)

    220. 

  220.             {

    221. 

  221.                 toChange.CommandText = toChange.CommandText.Replace(fe1, replacements[fe1]);

    222. 

  222.             }

    223. 

  223.         }

    224. 

  224. 

    225. 

  225.         public object[] GetParametersArray(DbCommand paramContainer)

    226. 

  226.         {

    227. 

  227.             return GetParametersArray(new List<DbCommand>() { paramContainer });

    228. 

  228.         }

    229. 

  229.         public object[] GetParametersArray(List<DbCommand> paramContainers)

    230. 

  230.         {

    231. 

  231.             System.Collections.ArrayList r = new System.Collections.ArrayList();

    232. 

  232.             foreach (DbCommand fe1 in paramContainers)

    233. 

  233.             {

    234. 

  234.                 r.AddRange((from x1 in fe1.Parameters.Cast<DbParameter>()

    235. 

  235.                             select x1.Value).ToList());

    236. 

  236.             }

    237. 

  237.             return r.ToArray();

    238. 

  238.         }

    239. 

  239. 

    240. 

  240.         public static string GetSqlEmbededWithParams(DbCommand dbc1)

    241. 

  241.         {

    242. 

  242.             string r = "";

    243. 

  243.             //SQL Parameteres

    244. 

  244.             string sqlTextParams = "";

    245. 

  245.             foreach (DbParameter fe1 in dbc1.Parameters)

    246. 

  246.             {

    247. 

  247.                 int fe1_Size = (fe1.Size <= 0) ? 1 : fe1.Size;

    248. 

  248.                 string strType = "";

    249. 

  249.                 string strValue = "";

    250. 

  250.                 switch (fe1.DbType)

    251. 

  251.                 {

    252. 

  252.                     case System.Data.DbType.AnsiString:

    253. 

  253.                         strType = string.Format("varchar({0})", fe1_Size);

    254. 

  254.                         strValue = string.Format("'{0}'", fe1.Value);

    255. 

  255.                         break;

    256. 

  256.                     case System.Data.DbType.AnsiStringFixedLength:

    257. 

  257.                         strType = string.Format("char({0})", fe1_Size);

    258. 

  258.                         strValue = string.Format("'{0}'", fe1.Value);

    259. 

  259.                         break;

    260. 

  260.                     case System.Data.DbType.Binary:

    261. 

  261.                         break;

    262. 

  262.                     case System.Data.DbType.Boolean:

    263. 

  263.                         strType = "bit";

    264. 

  264.                         strValue = (((bool)fe1.Value) ? 1 : 0).ToString();

    265. 

  265.                         break;

    266. 

  266.                     case System.Data.DbType.Byte:

    267. 

  267.                         break;

    268. 

  268.                     case System.Data.DbType.Currency:

    269. 

  269.                         break;

    270. 

  270.                     case System.Data.DbType.Date:

    271. 

  271.                         strType = "date";

    272. 

  272.                         strValue = string.Format("'{0}'", ((DateTime)fe1.Value).ToString("yyyy-MM-dd"));

    273. 

  273.                         break;

    274. 

  274.                     case System.Data.DbType.DateTime:

    275. 

  275.                     case System.Data.DbType.DateTime2:

    276. 

  276.                         strType = "datetime";

    277. 

  277.                         strValue = string.Format("'{0}'", ((DateTime)fe1.Value).ToString("yyyy-MM-ddTHH:mm:ss.fff"));

    278. 

  278.                         break;

    279. 

  279.                     case System.Data.DbType.DateTimeOffset:

    280. 

  280.                         break;

    281. 

  281.                     case System.Data.DbType.Decimal:

    282. 

  282.                         break;

    283. 

  283.                     case System.Data.DbType.Double:

    284. 

  284.                         strType = "float";

    285. 

  285.                         strValue = fe1.Value.ToString();

    286. 

  286.                         break;

    287. 

  287.                     case System.Data.DbType.Guid:

    288. 

  288.                         break;

    289. 

  289.                     case System.Data.DbType.Int16:

    290. 

  290.                         break;

    291. 

  291.                     case System.Data.DbType.Int32:

    292. 

  292.                         strType = "int";

    293. 

  293.                         strValue = fe1.Value.ToString();

    294. 

  294.                         break;

    295. 

  295.                     case System.Data.DbType.Int64:

    296. 

  296.                         break;

    297. 

  297.                     case System.Data.DbType.Object:

    298. 

  298.                         break;

    299. 

  299.                     case System.Data.DbType.SByte:

    300. 

  300.                         break;

    301. 

  301.                     case System.Data.DbType.Single:

    302. 

  302.                         break;

    303. 

  303.                     case System.Data.DbType.String:

    304. 

  304.                         strType = string.Format("nvarchar({0})", fe1_Size);

    305. 

  305.                         strValue = string.Format("N'{0}'", fe1.Value);

    306. 

  306.                         break;

    307. 

  307.                     case System.Data.DbType.StringFixedLength:

    308. 

  308.                         strType = string.Format("nchar({0})", fe1_Size);

    309. 

  309.                         strValue = string.Format("N'{0}'", fe1.Value);

    310. 

  310.                         break;

    311. 

  311.                     case System.Data.DbType.Time:

    312. 

  312.                         strType = "time";

    313. 

  313.                         strValue = string.Format("'{0}'", ((DateTime)fe1.Value).ToString("HH:mm:ss.fff"));

    314. 

  314.                         break;

    315. 

  315.                     case System.Data.DbType.UInt16:

    316. 

  316.                         break;

    317. 

  317.                     case System.Data.DbType.UInt32:

    318. 

  318.                         break;

    319. 

  319.                     case System.Data.DbType.UInt64:

    320. 

  320.                         break;

    321. 

  321.                     case System.Data.DbType.VarNumeric:

    322. 

  322.                         break;

    323. 

  323.                     case System.Data.DbType.Xml:

    324. 

  324.                         break;

    325. 

  325.                     default:

    326. 

  326.                         break;

    327. 

  327.                 }

    328. 

  328.                 if (string.IsNullOrEmpty(strValue))

    329. 

  329.                     strValue = "NULL";

    330. 

  330.                 if (!string.IsNullOrEmpty(strType))

    331. 

  331.                     sqlTextParams += string.Format(",{0} {1}={2}\n\t", fe1.ParameterName, strType, strValue);

    332. 

  332.             }

    333. 

  333.             sqlTextParams = sqlTextParams.Trim(new char[] { ',', '\t' });

    334. 

  334.             sqlTextParams = string.Format("DECLARE \n\t{0};", sqlTextParams);

    335. 

  335.             r = sqlTextParams + "\n" + dbc1.CommandText;

    336. 

  336.             return r;

    337. 

  337.         }

    338. 

  338.     }

    339. 

  339. }
    340.