protected virtual void CacheOracleDbTypeEnumValues(DbCommand command) { var assembly = command.GetType().GetTypeInfo().Assembly; var typeEnum = assembly.GetType(OracleDbTypeEnumName); ReflectionCache.DbTypeRefCursor = Enum.Parse(typeEnum, "RefCursor"); ReflectionCache.DbTypeBlob = Enum.Parse(typeEnum, "Blob"); ReflectionCache.DbTypeDate = Enum.Parse(typeEnum, "Date"); }
///// <summary> ///// 设置Oracle DbCommand 参数绑定的模式。 ///// </summary> ///// <param name="db"></param> ///// <param name="dbCmd"></param> ///// <param name="byName"></param> public void SetDbCmdParamterBindByName(Database db, System.Data.Common.DbCommand dbCmd, bool byName) { var databaseType = MB.Orm.Persistence.DatabaseHelper.GetDatabaseType(db); if (databaseType == DatabaseType.Oracle) { //edit by 陈迪臣 修改Oracle 参数的顺序的问题,默认情况下通过名称来匹配 if (dbCmd.GetType().FullName == "Oracle.DataAccess.Client.OracleCommand") // { PropertyInfo proInfo = dbCmd.GetType().GetProperty("BindByName"); if (proInfo != null) { proInfo.SetValue(dbCmd, true, null); } } } }
private static void EnsureOracleBindByName(DbCommand cmd) { //Oracle.DataAccess.Client only binds first parameter match unless BindByName=true //so we violate LiskovSP (in reflection to avoid dependency on ODP) if (cmd.GetType().GetProperty("BindByName") != null) { cmd.GetType().GetProperty("BindByName").SetValue(cmd, true, null); } }
static internal Exception PrepareParameterScale(DbCommand cmd, string type) { return InvalidOperation(Res.GetString(Res.ADP_PrepareParameterScale, cmd.GetType().Name, type)); }
static internal Exception PrepareParameterSize(DbCommand cmd) { return(InvalidOperation(Res.GetString(Res.ADP_PrepareParameterSize, cmd.GetType().Name))); }
public DataTable Query( DbCommand cmd ) { if ( cmd == null ) { throw new ArgumentNullException( "cmd" ); } SQLiteCommand sqliteCmd = cmd as SQLiteCommand; if ( cmd == null ) { throw new ArgumentException( "command has invalid type: " + cmd.GetType() ); } Open( false ); if ( sqliteCmd.Connection != myConnection ) { sqliteCmd.Connection = myConnection; } // TODO: use: // DbDataReader reader = cmd.ExecuteReader(); // table.Load( reader ); SQLiteDataAdapter dataAdapter = new SQLiteDataAdapter( sqliteCmd ); DataTable table = new DataTable(); table.Locale = CultureInfo.InvariantCulture; dataAdapter.Fill( table ); return table; }
protected virtual bool DatabaseEngineIs(DbCommand command, params System.String[] flavors) { return DatabaseEngineIs(command.GetType().FullName, flavors); }
/// <summary> /// Gets the format of the parameter, to avoid query the schema the parameter /// format is cached with the type of the parameter. This version is used /// for the old interface of DataAccess based on anonimous function. /// </summary> /// <param name="command"></param> /// <returns></returns> private static String GetParameterFormat(DbCommand command) { String typeName = command.GetType().FullName; if (!mParametersFormat.ContainsKey(typeName)) { mParametersFormat.Add(typeName, command.Connection.GetSchema("DataSourceInformation") .Rows[0]["ParameterMarkerFormat"].ToString()); } return mParametersFormat[typeName]; }
internal static Exception PrepareParameterSize(DbCommand cmd) { return InvalidOperation(Res.GetString(Res.ADP_PrepareParameterSize, cmd.GetType().Name)); }
private void ConfigureCommandForSelect(DbCommand command, ViewPage page, SelectClauseDictionary expressions, string fromClause, string whereClause, string orderByClause, CommandConfigurationType commandConfiguration) { bool useServerPaging = ((commandConfiguration != CommandConfigurationType.SelectDistinct && !(_serverRules.EnableResultSet)) && (commandConfiguration != CommandConfigurationType.SelectAggregates && commandConfiguration != CommandConfigurationType.SelectFirstLetters)); bool useLimit = SupportsLimitInSelect(command); bool useSkip = SupportsSkipInSelect(command); if (useServerPaging) page.AcceptAllRows(); StringBuilder sb = new StringBuilder(); if (useLimit || useSkip) useServerPaging = false; bool countUsingHierarchy = false; if ((commandConfiguration == CommandConfigurationType.SelectCount) && (useServerPaging && RequiresHierarchy(page))) { countUsingHierarchy = true; commandConfiguration = CommandConfigurationType.Select; } if (commandConfiguration == CommandConfigurationType.SelectExisting) useServerPaging = false; if (commandConfiguration == CommandConfigurationType.SelectCount) sb.AppendLine("select count(*)"); else { if (useServerPaging) sb.AppendLine("with page_cte__ as ("); else if ((commandConfiguration == CommandConfigurationType.Sync) && useLimit) sb.Append("select * from (select @row_num := @row_num+1 row_number__,cte__.* from (select @r" + "ow_num:=0) r,("); sb.AppendLine("select"); if (useServerPaging) AppendRowNumberExpression(sb, page, expressions, orderByClause); if (commandConfiguration == CommandConfigurationType.SelectDistinct) { DataField distinctField = page.FindField(page.DistinctValueFieldName); string distinctExpression = expressions[distinctField.ExpressionName()]; if (distinctField.Type.StartsWith("Date")) { string commandType = command.GetType().ToString(); if (commandType == "System.Data.SqlClient.SqlCommand") distinctExpression = String.Format("DATEADD(dd, 0, DATEDIFF(dd, 0, {0}))", distinctExpression); if (commandType == "MySql.Data.MySqlClient.MySqlCommand") distinctExpression = String.Format("cast({0} as date)", distinctExpression); } sb.AppendFormat("distinct {0} \"{1}\"\r\n", distinctExpression, page.DistinctValueFieldName); } else if (commandConfiguration == CommandConfigurationType.SelectAggregates) AppendAggregateExpressions(sb, page, expressions); else if (commandConfiguration == CommandConfigurationType.SelectFirstLetters) { string substringFunction = "substring"; if (DatabaseEngineIs(command, "Oracle", "DB2")) substringFunction = "substr"; AppendFirstLetterExpressions(sb, page, expressions, substringFunction); } else { if ((commandConfiguration == CommandConfigurationType.Select) && useSkip) sb.AppendFormat(" first {0} skip {1}\r\n", page.PageSize, (page.PageSize * page.PageIndex)); if ((commandConfiguration == CommandConfigurationType.Sync) && useSkip) { // Only select the primary key. foreach (DataField field in page.Fields) if (field.IsPrimaryKey) { sb.Append(expressions[field.ExpressionName()]); break; } } else if (commandConfiguration == CommandConfigurationType.SelectExisting) sb.AppendLine("*"); else AppendSelectExpressions(sb, page, expressions, !(useServerPaging)); } } sb.AppendLine("from"); sb.AppendLine(fromClause); _hasWhere = false; if (String.IsNullOrEmpty(_viewFilter)) { _viewFilter = _view.GetAttribute("filter", String.Empty); if (String.IsNullOrEmpty(_viewFilter) && ((_viewType == "Form") && !(String.IsNullOrEmpty(page.LastView)))) { XPathNavigator lastView = _config.SelectSingleNode("/c:dataController/c:views/c:view[@id=\'{0}\']", page.LastView); if (lastView != null) _viewFilter = lastView.GetAttribute("filter", String.Empty); } } if (!(String.IsNullOrEmpty(_viewFilter))) _viewFilter = String.Format("({0})", _viewFilter); if (commandConfiguration == CommandConfigurationType.SelectExisting) { EnsureWhereKeyword(sb); sb.Append(expressions[page.InnerJoinForeignKey.ToLower()]); sb.Append("="); sb.Append(page.InnerJoinPrimaryKey); sb.AppendLine(" and "); } AppendSystemFilter(command, page, expressions); AppendAccessControlRules(command, page, expressions); if (((page.Filter != null) && (page.Filter.Length > 0)) || !(String.IsNullOrEmpty(_viewFilter))) AppendFilterExpressionsToWhere(sb, page, command, expressions, whereClause); else if (!(String.IsNullOrEmpty(whereClause))) { EnsureWhereKeyword(sb); sb.AppendLine(whereClause); } if (commandConfiguration == CommandConfigurationType.Select) { bool preFetch = RequiresPreFetching(page); if (useServerPaging) { if (!(ConfigureCTE(sb, page, command, expressions, countUsingHierarchy))) sb.Append(")\r\nselect * from page_cte__ "); if (!(countUsingHierarchy)) { sb.AppendFormat("where row_number__ > {0}PageRangeFirstRowNumber and row_number__ <= {0}PageRangeL" + "astRowNumber order by row_number__", _parameterMarker); DbParameter p = command.CreateParameter(); p.ParameterName = (_parameterMarker + "PageRangeFirstRowNumber"); p.Value = ((page.PageSize * page.PageIndex) + page.PageOffset); if (preFetch) p.Value = (((int)(p.Value)) - page.PageSize); command.Parameters.Add(p); DbParameter p2 = command.CreateParameter(); p2.ParameterName = (_parameterMarker + "PageRangeLastRowNumber"); p2.Value = ((page.PageSize * (page.PageIndex + 1)) + page.PageOffset); if (preFetch) p2.Value = (((int)(p2.Value)) + page.PageSize); command.Parameters.Add(p2); } } else { AppendOrderByExpression(sb, page, expressions, orderByClause); if (useLimit) { sb.AppendFormat("\r\nlimit {0}Limit_PageOffset, {0}Limit_PageSize", _parameterMarker); DbParameter p = command.CreateParameter(); p.ParameterName = (_parameterMarker + "Limit_PageOffset"); p.Value = ((page.PageSize * page.PageIndex) + page.PageOffset); if (preFetch && (((int)(p.Value)) > page.PageSize)) p.Value = (((int)(p.Value)) - page.PageSize); command.Parameters.Add(p); DbParameter p2 = command.CreateParameter(); p2.ParameterName = (_parameterMarker + "Limit_PageSize"); p2.Value = page.PageSize; if (preFetch) { int pagesToFetch = 2; if (((int)(p.Value)) > page.PageSize) pagesToFetch = 3; p2.Value = (page.PageSize * pagesToFetch); } command.Parameters.Add(p2); } } } else if (commandConfiguration == CommandConfigurationType.Sync) { if (useServerPaging) { if (!(ConfigureCTE(sb, page, command, expressions, false))) sb.Append(")\r\nselect * from page_cte__ "); sb.Append("where "); } else { if (useLimit || useSkip) AppendOrderByExpression(sb, page, expressions, orderByClause); if (!(useSkip)) sb.Append(") cte__)cte2__ where "); } bool first = true; if (!(useSkip)) foreach (DataField field in page.Fields) if (field.IsPrimaryKey) { if (first) first = false; else sb.AppendFormat(" and "); sb.AppendFormat("{2}{1}{3}={0}PrimaryKey_{1}", _parameterMarker, field.Name, _leftQuote, _rightQuote); } } else if ((commandConfiguration == CommandConfigurationType.SelectDistinct) || (commandConfiguration == CommandConfigurationType.SelectFirstLetters)) sb.Append("order by 1"); command.CommandText = sb.ToString(); _viewFilter = null; }
private static MethodInfo InitSetBindByName(DbCommand command) { return command.GetType().GetMethod("set_BindByName", BindingFlags.Public | BindingFlags.Instance); }
public static string EscapePattern(DbCommand command, string s) { if (String.IsNullOrEmpty(s)) return s; if (command.GetType().FullName == "System.Data.SqlClient.SqlCommand") return _sqlClientPatternEscape.Replace(s, "[$1]"); return s; }
private void AddDbCommandStatements (CodeMemberMethod m, CodeExpression expr, DbCommand cmd) { if (cmd == null) return; CodeExpression expr1; CodeStatement stmt = Let (expr, New (cmd.GetType ())); m.Statements.Add (stmt); stmt = Let (PropRef (expr,"Connection"), PropRef ("Connection")); m.Statements.Add (stmt); stmt = Let (PropRef (expr, "CommandText"), Const (cmd.CommandText)); m.Statements.Add (stmt); expr1 = PropRef (Local(typeof (CommandType).FullName), cmd.CommandType.ToString ()); stmt = Let (PropRef (expr, "CommandType"), expr1); m.Statements.Add (stmt); expr1 = PropRef (expr, "Parameters"); foreach (DbParameter param in cmd.Parameters) { AddDbParameterStatements (m, expr1, param); } }
private void CreateDBCommandCollectionFieldAndProperty (CodeTypeDeclaration t, DbCommand cmd) { CodeExpression expr; CodeStatement setStmt; CodeStatement stmt; CodeMemberField f = new CodeMemberField (); f.Name = "_commandCollection"; f.Type = TypeRefArray (cmd.GetType (), 1); t.Members.Add (f); CodeMemberProperty p = new CodeMemberProperty (); p.Name = "CommandCollection"; p.Attributes = MemberAttributes.Family; p.Type = f.Type; p.HasSet = false; expr = FieldRef ("_commandCollection"); setStmt = Eval (MethodInvoke ("InitCommandCollection")); stmt = new CodeConditionStatement (Equals (expr, Const (null)), new CodeStatement [] {setStmt}, new CodeStatement [] {}); p.GetStatements.Add (stmt); p.GetStatements.Add (Return (expr)); t.Members.Add (p); }
protected virtual void AppendFilterExpressionsToWhere(StringBuilder sb, ViewPage page, DbCommand command, SelectClauseDictionary expressions, string whereClause) { string quickFindHint = page.QuickFindHint; bool firstCriteria = String.IsNullOrEmpty(_viewFilter); if (!(firstCriteria)) { EnsureWhereKeyword(sb); sb.AppendLine("("); sb.Append(ProcessViewFilter(page, command, expressions)); } int matchListCount = 0; bool firstDoNotMatch = true; string logicalConcat = "and "; if (page.Filter != null) foreach (string filterExpression in page.Filter) { Match matchingMode = MatchingModeRegex.Match(filterExpression); if (matchingMode.Success) { bool doNotMatch = (matchingMode.Groups["Match"].Value == "_donotmatch_"); if (doNotMatch) { if (firstDoNotMatch) { firstDoNotMatch = false; EnsureWhereKeyword(sb); if (!(firstCriteria)) sb.AppendLine(")"); if (matchListCount > 0) sb.AppendLine(")"); if (!(firstCriteria) || (matchListCount > 0)) sb.AppendLine("and"); matchListCount = 0; sb.AppendLine(" not"); firstCriteria = true; } } if (matchListCount == 0) { EnsureWhereKeyword(sb); if (!(firstCriteria)) sb.Append(") and"); // the list of matches begins sb.AppendLine("("); } else { sb.AppendLine(")"); sb.AppendLine("or"); } // begin a list of conditions for the next match if (matchingMode.Groups["Scope"].Value == "$all$") logicalConcat = " and "; else logicalConcat = " or "; matchListCount++; firstCriteria = true; } Match filterMatch = FilterExpressionRegex.Match(filterExpression); if (filterMatch.Success) { // "ProductName:?g", "CategoryCategoryName:=Condiments\x00=Seafood" bool firstValue = true; string fieldOperator = " or "; if (Regex.IsMatch(filterMatch.Groups["Values"].Value, ">|<")) fieldOperator = " and "; Match valueMatch = FilterValueRegex.Match(filterMatch.Groups["Values"].Value); while (valueMatch.Success) { string alias = filterMatch.Groups["Alias"].Value; string operation = valueMatch.Groups["Operation"].Value; string paramValue = valueMatch.Groups["Value"].Value; if ((operation == "~") && (alias == "_quickfind_")) alias = page.Fields[0].Name; bool deepSearching = alias.Contains(","); DataField field = page.FindField(alias); if (((((field != null) && field.AllowQBE) || (operation == "~")) && (((page.DistinctValueFieldName != field.Name || (matchListCount > 0)) || (operation == "~")) || (page.AllowDistinctFieldInFilter || page.CustomFilteredBy(field.Name)))) || deepSearching) { if (firstValue) { if (firstCriteria) { EnsureWhereKeyword(sb); sb.AppendLine("("); firstCriteria = false; } else sb.Append(logicalConcat); sb.Append("("); firstValue = false; } else sb.Append(fieldOperator); if (deepSearching) { string deepSearchFieldName = alias.Substring(0, alias.IndexOf(',')); string hint = alias.Substring((deepSearchFieldName.Length + 1)); string deepFilterExpression = (deepSearchFieldName + filterExpression.Substring(filterExpression.IndexOf(':'))); AppendDeepFilter(hint, page, command, sb, deepFilterExpression); } else if (operation == "~") { paramValue = Convert.ToString(StringToValue(paramValue)); List<string> words = new List<string>(); List<List<string>> phrases = new List<List<string>>(); phrases.Add(words); CultureInfo currentCulture = CultureInfo.CurrentCulture; string textDateNumber = ("\\p{L}\\d" + Regex.Escape((currentCulture.DateTimeFormat.DateSeparator + (currentCulture.DateTimeFormat.TimeSeparator + currentCulture.NumberFormat.NumberDecimalSeparator)))); string[] removableNumericCharacters = new string[] { currentCulture.NumberFormat.NumberGroupSeparator, currentCulture.NumberFormat.CurrencyGroupSeparator, currentCulture.NumberFormat.CurrencySymbol}; Match m = Regex.Match(paramValue, String.Format("\\s*(?\'Token\'((?\'Quote\'\")(?\'Value\'.+?)\")|((?\'Quote\'\\\')(?\'Value\'.+?)\\\')|(,|;|(^|\\s+" + ")-)|(?\'Value\'[{0}]+))", textDateNumber)); bool negativeSample = false; while (m.Success) { string token = m.Groups["Token"].Value.Trim(); if ((token == ",") || (token == ";")) { words = new List<string>(); phrases.Add(words); negativeSample = false; } else if (token == "-") negativeSample = true; else { string exactFlag = "="; if (String.IsNullOrEmpty(m.Groups["Quote"].Value)) exactFlag = " "; string negativeFlag = " "; if (negativeSample) { negativeFlag = "-"; negativeSample = false; } words.Add(String.Format("{0}{1}{2}", negativeFlag, exactFlag, m.Groups["Value"].Value)); } m = m.NextMatch(); } bool firstPhrase = true; foreach (List<String> phrase in phrases) if (phrase.Count > 0) { if (firstPhrase) firstPhrase = false; else sb.AppendLine("or"); sb.AppendLine("("); bool firstWord = true; System.DateTime paramValueAsDate; foreach (string paramValueWord in phrase) { bool negativeFlag = (paramValueWord[0] == '-'); bool exactFlag = (paramValueWord[1] == '='); string comparisonOperator = "like"; if (exactFlag) comparisonOperator = "="; string pv = paramValueWord.Substring(2); bool paramValueIsDate = SqlStatement.TryParseDate(command.GetType(), pv, out paramValueAsDate); bool firstTry = true; DbParameter parameter = null; if (!(paramValueIsDate)) pv = SqlStatement.EscapePattern(command, pv); double paramValueAsNumber; string testNumber = pv; foreach (string s in removableNumericCharacters) testNumber = testNumber.Replace(s, string.Empty); bool paramValueIsNumber = double.TryParse(testNumber, out paramValueAsNumber); if (!(exactFlag) && !(pv.Contains("%"))) pv = String.Format("%{0}%", pv); if (firstWord) firstWord = false; else sb.Append("and"); if (negativeFlag) sb.Append(" not"); sb.Append("("); bool hasTests = false; DbParameter originalParameter = null; if (String.IsNullOrEmpty(quickFindHint) || !(quickFindHint.StartsWith(";"))) foreach (DataField tf in page.Fields) if ((tf.AllowQBE && String.IsNullOrEmpty(tf.AliasName)) && (!((tf.IsPrimaryKey && tf.Hidden)) && (!(tf.Type.StartsWith("Date")) || paramValueIsDate))) { hasTests = true; if ((parameter == null) || command.GetType().FullName.Contains("ManagedDataAccess")) { parameter = command.CreateParameter(); parameter.ParameterName = String.Format("{0}p{1}", _parameterMarker, command.Parameters.Count); parameter.DbType = DbType.String; command.Parameters.Add(parameter); parameter.Value = pv; if (exactFlag && paramValueIsNumber) { parameter.DbType = DbType.Double; parameter.Value = paramValueAsNumber; } } if (!((exactFlag && ((!(tf.Type.Contains("String")) && !(paramValueIsNumber)) || (tf.Type.Contains("String") && paramValueIsNumber))))) { if (firstTry) firstTry = false; else sb.Append(" or "); if (tf.Type.StartsWith("Date")) { DbParameter dateParameter = command.CreateParameter(); dateParameter.ParameterName = String.Format("{0}p{1}", _parameterMarker, command.Parameters.Count); dateParameter.DbType = DbType.DateTime; command.Parameters.Add(dateParameter); dateParameter.Value = paramValueAsDate; if (negativeFlag) sb.AppendFormat("({0} is not null)and", expressions[tf.ExpressionName()]); sb.AppendFormat("({0} = {1})", expressions[tf.ExpressionName()], dateParameter.ParameterName); } else { bool skipLike = false; if (!((comparisonOperator == "=")) && ((tf.Type == "String") && ((tf.Len > 0) && (tf.Len < pv.Length)))) { string pv2 = pv; pv2 = pv2.Substring(1); if (tf.Len < pv2.Length) pv2 = pv2.Substring(0, (pv2.Length - 1)); if (pv2.Length > tf.Len) skipLike = true; else { originalParameter = parameter; parameter = command.CreateParameter(); parameter.ParameterName = String.Format("{0}p{1}", _parameterMarker, command.Parameters.Count); parameter.DbType = DbType.String; command.Parameters.Add(parameter); parameter.Value = pv2; } } if (_serverRules.EnableResultSet) { string fieldNameExpression = expressions[tf.ExpressionName()]; if ((tf.Type != "String" && !(exactFlag)) || (tf.Type == "Boolean")) fieldNameExpression = String.Format("convert({0}, \'System.String\')", fieldNameExpression); if (negativeFlag) sb.AppendFormat("({0} is not null)and", fieldNameExpression); sb.AppendFormat("({0} {2} {1})", fieldNameExpression, parameter.ParameterName, comparisonOperator); } else if (skipLike) sb.Append("1=0"); else { if (negativeFlag) sb.AppendFormat("({0} is not null)and", expressions[tf.ExpressionName()]); if (DatabaseEngineIs(command, "Oracle", "DB2", "Firebird")) { sb.AppendFormat("(upper({0}) {2} {1})", expressions[tf.ExpressionName()], parameter.ParameterName, comparisonOperator); parameter.Value = Convert.ToString(parameter.Value).ToUpper(); } else sb.AppendFormat("({0} {2} {1})", expressions[tf.ExpressionName()], parameter.ParameterName, comparisonOperator); } } } if (originalParameter != null) { parameter = originalParameter; originalParameter = null; } } if (!(String.IsNullOrEmpty(quickFindHint)) && quickFindHint.Contains(";")) { sb.AppendLine(); if (hasTests) sb.AppendLine("or"); else hasTests = true; sb.AppendLine("("); bool firstHint = true; foreach (string hint in quickFindHint.Substring((quickFindHint.IndexOf(';') + 1)).Split(new char[] { ';'})) { if (firstHint) firstHint = false; else { sb.AppendLine(); sb.AppendLine("or"); } sb.AppendLine("("); string newFilterExpression = filterExpression; StringBuilder reversedFilterExpression = new StringBuilder(); if (negativeFlag) { bool firstExpressionPhrase = true; foreach (List<string> ph in phrases) { if (firstExpressionPhrase) firstExpressionPhrase = false; else reversedFilterExpression.Append(","); bool firstExpressionWord = true; foreach (string w in ph) { if (firstExpressionWord) firstExpressionWord = false; else reversedFilterExpression.Append(" "); if (!((w[0] == '-'))) reversedFilterExpression.Append("-"); if (w[1] == '=') reversedFilterExpression.Append("\""); reversedFilterExpression.Append(w.Substring(2)); if (w[1] == '=') reversedFilterExpression.Append("\""); } } newFilterExpression = ("_quickfind_:~" + ValueToString(reversedFilterExpression.ToString())); } AppendDeepFilter(hint, page, command, sb, newFilterExpression); sb.AppendLine(")"); } sb.AppendLine(")"); } if (!(hasTests)) if (negativeFlag && quickFindHint.StartsWith(";")) sb.Append("1=1"); else sb.Append("1=0"); sb.Append(")"); } sb.AppendLine(")"); } if (firstPhrase) sb.Append("1=1"); } else if (operation.StartsWith("$")) sb.Append(FilterFunctions.Replace(command, expressions, String.Format("{0}({1}$comma${2})", operation.TrimEnd('$'), alias, Convert.ToBase64String(Encoding.UTF8.GetBytes(paramValue))))); else { DbParameter parameter = command.CreateParameter(); parameter.ParameterName = String.Format("{0}p{1}", _parameterMarker, command.Parameters.Count); AssignParameterDbType(parameter, field.Type); sb.Append(expressions[field.ExpressionName()]); bool requiresRangeAdjustment = ((operation == "=") && (field.Type.StartsWith("DateTime") && !(StringIsNull(paramValue)))); if ((operation == "<>") && StringIsNull(paramValue)) sb.Append(" is not null "); else if ((operation == "=") && StringIsNull(paramValue)) sb.Append(" is null "); else { if (operation == "*") { sb.Append(" like "); parameter.DbType = DbType.String; if (!(paramValue.Contains("%"))) paramValue = (SqlStatement.EscapePattern(command, paramValue) + "%"); } else if (requiresRangeAdjustment) sb.Append(">="); else sb.Append(operation); try { parameter.Value = StringToValue(field, paramValue); if ((parameter.DbType == DbType.Binary) && (parameter.Value is Guid)) parameter.Value = ((Guid)(parameter.Value)).ToByteArray(); } catch (Exception ) { parameter.Value = DBNull.Value; } sb.Append(parameter.ParameterName); command.Parameters.Add(parameter); if (requiresRangeAdjustment) { DbParameter rangeParameter = command.CreateParameter(); AssignParameterDbType(rangeParameter, field.Type); rangeParameter.ParameterName = String.Format("{0}p{1}", _parameterMarker, command.Parameters.Count); sb.Append(String.Format(" and {0} < {1}", expressions[field.ExpressionName()], rangeParameter.ParameterName)); if (field.Type == "DateTimeOffset") { DateTime dt = Convert.ToDateTime(parameter.Value); parameter.Value = new DateTimeOffset(dt).AddHours(-14); rangeParameter.Value = new DateTimeOffset(dt).AddDays(1).AddHours(14); } else rangeParameter.Value = Convert.ToDateTime(parameter.Value).AddDays(1); command.Parameters.Add(rangeParameter); } } } } valueMatch = valueMatch.NextMatch(); } if (!(firstValue)) sb.AppendLine(")"); } } if (matchListCount > 0) { sb.AppendLine(")"); // the end of the "match" list sb.AppendLine(")"); firstCriteria = true; } if (!(firstCriteria)) { sb.AppendLine(")"); if (!(String.IsNullOrEmpty(whereClause))) sb.Append("and "); } if (!(String.IsNullOrEmpty(whereClause))) { sb.AppendLine("("); sb.AppendLine(whereClause); sb.AppendLine(")"); } }
internal static Exception PrepareParameterScale(DbCommand cmd, string type) { return(InvalidOperation(SR.GetString(SR.ADP_PrepareParameterScale, cmd.GetType().Name, type))); }
/// <summary> /// Gets the format of the parameter, to avoid query the schema the parameter /// format is cached with the type of the parameter /// </summary> /// <param name="command"></param> /// <param name="connectionStringName">Connection String name is needed because if /// we did not already get the format of the parameter we need the connection to /// retrieve the format from the schema.</param> /// <returns></returns> private static String GetParameterFormat(DbCommand command, String connectionStringName) { String typeName = command.GetType().FullName; if (!mParametersFormat.ContainsKey(typeName)) { ConnectionStringSettings cn; if (String.IsNullOrEmpty(connectionStringName)) cn = ConfigurationRegistry.MainConnectionString; else cn = ConfigurationRegistry.ConnectionString(connectionStringName); DbProviderFactory Factory = DbProviderFactories.GetFactory(cn.ProviderName); using (DbConnection conn = Factory.CreateConnection()) { conn.ConnectionString = cn.ConnectionString; conn.Open(); mParametersFormat.Add( typeName, conn.GetSchema("DataSourceInformation") .Rows[0]["ParameterMarkerFormat"].ToString()); } } return mParametersFormat[typeName]; }
protected virtual void CacheCommandProperties(DbCommand command) { var oracleDbCommandType = command.GetType().GetTypeInfo(); ReflectionCache.PropBindByName = oracleDbCommandType.GetDeclaredProperty("BindByName"); ReflectionCache.PropArrayBindCount = oracleDbCommandType.GetDeclaredProperty("ArrayBindCount"); }