static public EfzCommand BuildStoredProcUpdateCommand(esDataRequest request)
{
EfzCommand cmd = new EfzCommand();
if (request.CommandTimeout != null)
{
cmd.CommandTimeout = request.CommandTimeout.Value;
}
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = Delimiters.StoredProcNameOpen + request.ProviderMetadata.spUpdate + Delimiters.StoredProcNameClose;
PopulateStoredProcParameters(cmd, request);
foreach (esColumnMetadata col in request.Columns)
{
if (col.IsComputed || col.IsEntitySpacesConcurrency)
{
EfzParameter p = cmd.Parameters["?p" + (col.Name).Replace(" ", String.Empty)];
p.SourceVersion = DataRowVersion.Original;
p.Direction = ParameterDirection.InputOutput;
}
}
return(cmd);
}
static public EfzCommand BuildDynamicDeleteCommand(esDataRequest request, List <string> modifiedColumns)
{
Dictionary <string, EfzParameter> types = Cache.GetParameters(request);
EfzCommand cmd = new EfzCommand();
if (request.CommandTimeout != null)
{
cmd.CommandTimeout = request.CommandTimeout.Value;
}
string sql = "DELETE FROM " + CreateFullName(request) + " ";
string comma = String.Empty;
comma = String.Empty;
sql += " WHERE ";
foreach (esColumnMetadata col in request.Columns)
{
if (col.IsInPrimaryKey || col.IsEntitySpacesConcurrency || col.IsConcurrency)
{
EfzParameter p = types[col.Name];
cmd.Parameters.Add(CloneParameter(p));
sql += comma;
sql += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
comma = " AND ";
}
}
cmd.CommandText = sql;
cmd.CommandType = CommandType.Text;
return(cmd);
}
static public void GatherReturnParameters(EfzCommand cmd, esDataRequest request, esDataResponse response)
{
if (cmd.Parameters.Count > 0)
{
if (request.Parameters != null && request.Parameters.Count > 0)
{
string paramPrefix = request.ProviderMetadata.spLoadByPrimaryKey == cmd.CommandText ? Delimiters.Param + "p" : Delimiters.Param;
response.Parameters = new esParameters();
foreach (esParameter esParam in request.Parameters)
{
if (esParam.Direction != esParameterDirection.Input)
{
response.Parameters.Add(esParam);
EfzParameter p = cmd.Parameters[paramPrefix + esParam.Name];
esParam.Value = p.Value;
}
}
}
}
}
static public Dictionary <string, EfzParameter> GetParameters(Guid dataID,
esProviderSpecificMetadata providerMetadata, esColumnMetadataCollection columns)
{
lock (parameterCache)
{
if (!parameterCache.ContainsKey(dataID))
{
// The Parameters for this Table haven't been cached yet, this is a one time operation
Dictionary <string, EfzParameter> types = new Dictionary <string, EfzParameter>();
EfzParameter param1;
foreach (esColumnMetadata col in columns)
{
esTypeMap typeMap = providerMetadata.GetTypeMap(col.PropertyName);
if (typeMap != null)
{
string nativeType = typeMap.NativeType;
EfzType dbType = Cache.NativeTypeToDbType(nativeType);
param1 = new EfzParameter(Delimiters.Param + col.PropertyName, dbType, col.PropertyName);
param1.SourceColumn = col.Name;
switch (dbType)
{
// TODO:
//case SqlDbType.BigInt:
//case SqlDbType.Decimal:
//case SqlDbType.Float:
//case SqlDbType.Int:
//case SqlDbType.Money:
//case SqlDbType.Real:
//case SqlDbType.SmallMoney:
//case SqlDbType.TinyInt:
//case SqlDbType.SmallInt:
// param1.Size = (int)col.CharacterMaxLength;
// param1.Precision = (byte)col.NumericPrecision;
// param1.Scale = (byte)col.NumericScale;
// break;
//case SqlDbType.DateTime:
// param1.Precision = 23;
// param1.Scale = 3;
// break;
//case SqlDbType.SmallDateTime:
// param1.Precision = 16;
// break;
//case SqlDbType.Udt:
// SetUdtTypeNameToAvoidMonoError(param1, typeMap);
// break;
}
types[col.Name] = param1;
}
}
parameterCache[dataID] = types;
}
}
return(parameterCache[dataID]);
}
static public EfzParameter CloneParameter(EfzParameter p)
{
ICloneable param = p as ICloneable;
return(param.Clone() as EfzParameter);
}
protected static void OnRowUpdated(object sender, System.Data.Common.RowUpdatedEventArgs e)
{
try
{
PropertyCollection props = e.Row.Table.ExtendedProperties;
if (props.ContainsKey("props"))
{
props = (PropertyCollection)props["props"];
}
if (e.Status == UpdateStatus.Continue && (e.StatementType == StatementType.Insert || e.StatementType == StatementType.Update))
{
esDataRequest request = props["esDataRequest"] as esDataRequest;
esEntitySavePacket packet = (esEntitySavePacket)props["esEntityData"];
string source = props["Source"] as string;
if (e.StatementType == StatementType.Insert)
{
if (props.Contains("AutoInc"))
{
string autoInc = props["AutoInc"] as string;
EfzCommand cmd = new EfzCommand();
cmd.Connection = e.Command.Connection as EfzConnection;
cmd.Transaction = e.Command.Transaction as EfzTransaction;
cmd.CommandText = "SELECT LastIdentity([" + autoInc + "]) FROM [" + source + "]";
object o = null;
#region Profiling
if (sTraceHandler != null)
{
using (esTraceArguments esTrace = new esTraceArguments(request, cmd, "OnRowUpdated", System.Environment.StackTrace))
{
try
{
o = cmd.ExecuteScalar();
}
catch (Exception ex)
{
esTrace.Exception = ex.Message;
throw;
}
}
}
else
#endregion
{
o = cmd.ExecuteScalar();
}
if (o != null)
{
e.Row[autoInc] = o;
((EfzParameter)e.Command.Parameters["@" + autoInc]).Value = o;
}
}
if (props.Contains("EntitySpacesConcurrency"))
{
string esConcurrencyColumn = props["EntitySpacesConcurrency"] as string;
packet.CurrentValues[esConcurrencyColumn] = 1;
}
}
if (props.Contains("Timestamp"))
{
string column = props["Timestamp"] as string;
EfzCommand cmd = new EfzCommand();
cmd.Connection = e.Command.Connection as EfzConnection;
cmd.Transaction = e.Command.Transaction as EfzTransaction;
cmd.CommandText = "SELECT LastTimestamp('" + source + "');";
object o = null;
#region Profiling
if (sTraceHandler != null)
{
using (esTraceArguments esTrace = new esTraceArguments(request, cmd, "OnRowUpdated", System.Environment.StackTrace))
{
try
{
o = cmd.ExecuteScalar();
}
catch (Exception ex)
{
esTrace.Exception = ex.Message;
throw;
}
}
}
else
#endregion
{
o = cmd.ExecuteScalar();
}
if (o != null)
{
((EfzParameter)e.Command.Parameters["@" + column]).Value = o;
}
}
//-------------------------------------------------------------------------------------------------
// Fetch any defaults, SQLite doesn't support output parameters so we gotta do this the hard way
//-------------------------------------------------------------------------------------------------
if (props.Contains("Defaults"))
{
// Build the Where parameter and parameters
EfzCommand cmd = new EfzCommand();
cmd.Connection = e.Command.Connection as EfzConnection;
cmd.Transaction = e.Command.Transaction as EfzTransaction;
string select = (string)props["Defaults"];
string[] whereParameters = ((string)props["Where"]).Split(',');
string comma = String.Empty;
string where = String.Empty;
int i = 1;
foreach (string parameter in whereParameters)
{
EfzParameter p = new EfzParameter("@p" + i++.ToString(), e.Row[parameter]);
cmd.Parameters.Add(p);
where += comma + "[" + parameter + "]=" + p.ParameterName;
comma = " AND ";
}
// Okay, now we can execute the sql and get any values that have defaults that were
// null at the time of the insert and/or our timestamp
cmd.CommandText = "SELECT " + select + " FROM [" + request.ProviderMetadata.Source + "] WHERE " + where + ";";
EfzDataReader rdr = null;
try
{
#region Profiling
if (sTraceHandler != null)
{
using (esTraceArguments esTrace = new esTraceArguments(request, cmd, "OnRowUpdated", System.Environment.StackTrace))
{
try
{
rdr = cmd.ExecuteReader(CommandBehavior.SingleResult);
}
catch (Exception ex)
{
esTrace.Exception = ex.Message;
throw;
}
}
}
else
#endregion
{
rdr = cmd.ExecuteReader(CommandBehavior.SingleResult);
}
if (rdr.Read())
{
select = select.Replace("[", String.Empty).Replace("]", String.Empty);
string[] selectCols = select.Split(',');
for (int k = 0; k < selectCols.Length; k++)
{
packet.CurrentValues[selectCols[k]] = rdr.GetValue(k);
}
}
}
finally
{
// Make sure we close the reader no matter what
if (rdr != null) rdr.Close();
}
}
if (e.StatementType == StatementType.Update)
{
string colName = props["EntitySpacesConcurrency"] as string;
object o = e.Row[colName];
EfzParameter p = e.Command.Parameters["@" + colName] as EfzParameter;
object v = null;
switch (Type.GetTypeCode(o.GetType()))
{
case TypeCode.Int16: v = ((System.Int16)o) + 1; break;
case TypeCode.Int32: v = ((System.Int32)o) + 1; break;
case TypeCode.Int64: v = ((System.Int64)o) + 1; break;
case TypeCode.UInt16: v = ((System.UInt16)o) + 1; break;
case TypeCode.UInt32: v = ((System.UInt32)o) + 1; break;
case TypeCode.UInt64: v = ((System.UInt64)o) + 1; break;
}
p.Value = v;
}
}
}
catch { }
}
static private EfzParameter CloneParameter(EfzParameter p)
{
ICloneable param = p as ICloneable;
return param.Clone() as EfzParameter;
}
protected static string GetComparisonStatement(esDataRequest request, esDynamicQuerySerializable query, List<esComparison> items, string prefix, EfzCommand cmd, ref int pindex)
{
string sql = String.Empty;
string comma = String.Empty;
IDynamicQuerySerializableInternal iQuery = query as IDynamicQuerySerializableInternal;
//=======================================
// WHERE
//=======================================
if (items != null)
{
sql += prefix;
DbType paramType = DbType.String;
string compareTo = String.Empty;
foreach (esComparison comparisonItem in items)
{
paramType = DbType.String;
esComparison.esComparisonData comparisonData = (esComparison.esComparisonData)comparisonItem;
esDynamicQuerySerializable subQuery = null;
bool requiresParam = true;
bool needsStringParameter = false;
std.needsIntegerParameter = false;
if (comparisonData.IsParenthesis)
{
if (comparisonData.Parenthesis == esParenthesis.Open)
sql += "(";
else
sql += ")";
continue;
}
if (comparisonData.IsConjunction)
{
switch (comparisonData.Conjunction)
{
case esConjunction.And: sql += " AND "; break;
case esConjunction.Or: sql += " OR "; break;
case esConjunction.AndNot: sql += " AND NOT "; break;
case esConjunction.OrNot: sql += " OR NOT "; break;
}
continue;
}
Dictionary<string, EfzParameter> types = null;
if (comparisonData.Column.Query != null)
{
IDynamicQuerySerializableInternal iLocalQuery = comparisonData.Column.Query as IDynamicQuerySerializableInternal;
types = Cache.GetParameters(iLocalQuery.DataID, (esProviderSpecificMetadata)iLocalQuery.ProviderMetadata, (esColumnMetadataCollection)iLocalQuery.Columns);
}
if (comparisonData.IsLiteral)
{
sql += comparisonData.Column.Name.Substring(1, comparisonData.Column.Name.Length - 2);
continue;
}
if (comparisonData.ComparisonColumn.Name == null)
{
subQuery = comparisonData.Value as esDynamicQuerySerializable;
if (subQuery == null)
{
if (comparisonData.Column.Name != null)
{
IDynamicQuerySerializableInternal iColQuery = comparisonData.Column.Query as IDynamicQuerySerializableInternal;
esColumnMetadataCollection columns = (esColumnMetadataCollection)iColQuery.Columns;
compareTo = Delimiters.Param + columns[comparisonData.Column.Name].PropertyName + (++pindex).ToString();
}
else
{
compareTo = Delimiters.Param + "Expr" + (++pindex).ToString();
}
}
else
{
// It's a sub query
compareTo = GetSubquerySearchCondition(subQuery) + " (" + BuildQuery(request, subQuery, cmd, ref pindex) + ") ";
requiresParam = false;
}
}
else
{
compareTo = GetColumnName(comparisonData.ComparisonColumn);
requiresParam = false;
}
switch (comparisonData.Operand)
{
case esComparisonOperand.Exists:
sql += " EXISTS" + compareTo;
break;
case esComparisonOperand.NotExists:
sql += " NOT EXISTS" + compareTo;
break;
//-----------------------------------------------------------
// Comparison operators, left side vs right side
//-----------------------------------------------------------
case esComparisonOperand.Equal:
if(comparisonData.ItemFirst)
sql += ApplyWhereSubOperations(comparisonData) + " = " + compareTo;
else
sql += compareTo + " = " + ApplyWhereSubOperations(comparisonData);
break;
case esComparisonOperand.NotEqual:
if (comparisonData.ItemFirst)
sql += ApplyWhereSubOperations(comparisonData) + " <> " + compareTo;
else
sql += compareTo + " <> " + ApplyWhereSubOperations(comparisonData);
break;
case esComparisonOperand.GreaterThan:
if (comparisonData.ItemFirst)
sql += ApplyWhereSubOperations(comparisonData) + " > " + compareTo;
else
sql += compareTo + " > " + ApplyWhereSubOperations(comparisonData);
break;
case esComparisonOperand.LessThan:
if (comparisonData.ItemFirst)
sql += ApplyWhereSubOperations(comparisonData) + " < " + compareTo;
else
sql += compareTo + " < " + ApplyWhereSubOperations(comparisonData);
break;
case esComparisonOperand.LessThanOrEqual:
if (comparisonData.ItemFirst)
sql += ApplyWhereSubOperations(comparisonData) + " <= " + compareTo;
else
sql += compareTo + " <= " + ApplyWhereSubOperations(comparisonData);
break;
case esComparisonOperand.GreaterThanOrEqual:
if (comparisonData.ItemFirst)
sql += ApplyWhereSubOperations(comparisonData) + " >= " + compareTo;
else
sql += compareTo + " >= " + ApplyWhereSubOperations(comparisonData);
break;
case esComparisonOperand.Like:
string esc = comparisonData.LikeEscape.ToString();
if(String.IsNullOrEmpty(esc) || esc == "\0")
{
sql += ApplyWhereSubOperations(comparisonData) + " LIKE " + compareTo;
needsStringParameter = true;
}
else
{
sql += ApplyWhereSubOperations(comparisonData) + " LIKE " + compareTo;
sql += " ESCAPE '" + esc + "'";
needsStringParameter = true;
}
break;
case esComparisonOperand.NotLike:
esc = comparisonData.LikeEscape.ToString();
if (String.IsNullOrEmpty(esc) || esc == "\0")
{
sql += ApplyWhereSubOperations(comparisonData) + " NOT LIKE " + compareTo;
needsStringParameter = true;
}
else
{
sql += ApplyWhereSubOperations(comparisonData) + " NOT LIKE " + compareTo;
sql += " ESCAPE '" + esc + "'";
needsStringParameter = true;
}
break;
case esComparisonOperand.Contains:
sql += " CONTAINS(" + GetColumnName(comparisonData.Column) + ", " + compareTo + ")";
paramType = DbType.AnsiStringFixedLength;
needsStringParameter = true;
break;
case esComparisonOperand.IsNull:
sql += ApplyWhereSubOperations(comparisonData) + " IS NULL";
requiresParam = false;
break;
case esComparisonOperand.IsNotNull:
sql += ApplyWhereSubOperations(comparisonData) + " IS NOT NULL";
requiresParam = false;
break;
case esComparisonOperand.In:
case esComparisonOperand.NotIn:
{
if (subQuery != null)
{
// They used a subquery for In or Not
sql += ApplyWhereSubOperations(comparisonData);
sql += (comparisonData.Operand == esComparisonOperand.In) ? " IN" : " NOT IN";
sql += compareTo;
}
else
{
comma = String.Empty;
if (comparisonData.Operand == esComparisonOperand.In)
{
sql += ApplyWhereSubOperations(comparisonData) + " IN (";
}
else
{
sql += ApplyWhereSubOperations(comparisonData) + " NOT IN (";
}
foreach(object oin in comparisonData.Values)
{
string str = oin as string;
if (str != null)
{
// STRING
sql += comma + Delimiters.StringOpen + str + Delimiters.StringClose;
comma = ",";
}
else if (null != oin as System.Collections.IEnumerable)
{
// LIST OR COLLECTION OF SOME SORT
System.Collections.IEnumerable enumer = oin as System.Collections.IEnumerable;
if (enumer != null)
{
System.Collections.IEnumerator iter = enumer.GetEnumerator();
while (iter.MoveNext())
{
object o = iter.Current;
string soin = o as string;
if (soin != null)
sql += comma + Delimiters.StringOpen + soin + Delimiters.StringClose;
else
sql += comma + Convert.ToString(o);
comma = ",";
}
}
}
else
{
// NON STRING OR LIST
sql += comma + Convert.ToString(oin);
comma = ",";
}
}
sql += ")";
requiresParam = false;
}
}
break;
case esComparisonOperand.Between:
sql += ApplyWhereSubOperations(comparisonData) + " BETWEEN ";
sql += compareTo;
if (comparisonData.ComparisonColumn.Name == null)
{
cmd.Parameters.AddWithValue(compareTo, comparisonData.BetweenBegin);
}
if (comparisonData.ComparisonColumn2.Name == null)
{
IDynamicQuerySerializableInternal iColQuery = comparisonData.Column.Query as IDynamicQuerySerializableInternal;
esColumnMetadataCollection columns = (esColumnMetadataCollection)iColQuery.Columns;
compareTo = Delimiters.Param + columns[comparisonData.Column.Name].PropertyName + (++pindex).ToString();
sql += " AND " + compareTo;
cmd.Parameters.AddWithValue(compareTo, comparisonData.BetweenEnd);
}
else
{
sql += " AND " + Delimiters.ColumnOpen + comparisonData.ComparisonColumn2 + Delimiters.ColumnClose;
}
requiresParam = false;
break;
}
if (requiresParam)
{
EfzParameter p;
if (comparisonData.Column.Name != null)
{
p = types[comparisonData.Column.Name];
p = Cache.CloneParameter(p);
p.ParameterName = compareTo;
p.Value = comparisonData.Value;
if (needsStringParameter)
{
p.DbType = paramType;
}
else if (std.needsIntegerParameter)
{
p.DbType = DbType.Int32;
}
}
else
{
p = new EfzParameter(compareTo, comparisonData.Value);
}
cmd.Parameters.Add(p);
}
}
}
return sql;
}
protected static string GetComparisonStatement(esDataRequest request, esDynamicQuerySerializable query, List <esComparison> items, string prefix, EfzCommand cmd, ref int pindex)
{
string sql = String.Empty;
string comma = String.Empty;
IDynamicQuerySerializableInternal iQuery = query as IDynamicQuerySerializableInternal;
//=======================================
// WHERE
//=======================================
if (items != null)
{
sql += prefix;
DbType paramType = DbType.String;
string compareTo = String.Empty;
foreach (esComparison comparisonItem in items)
{
paramType = DbType.String;
esComparison.esComparisonData comparisonData = (esComparison.esComparisonData)comparisonItem;
esDynamicQuerySerializable subQuery = null;
bool requiresParam = true;
bool needsStringParameter = false;
std.needsIntegerParameter = false;
if (comparisonData.IsParenthesis)
{
if (comparisonData.Parenthesis == esParenthesis.Open)
{
sql += "(";
}
else
{
sql += ")";
}
continue;
}
if (comparisonData.IsConjunction)
{
switch (comparisonData.Conjunction)
{
case esConjunction.And: sql += " AND "; break;
case esConjunction.Or: sql += " OR "; break;
case esConjunction.AndNot: sql += " AND NOT "; break;
case esConjunction.OrNot: sql += " OR NOT "; break;
}
continue;
}
Dictionary <string, EfzParameter> types = null;
if (comparisonData.Column.Query != null)
{
IDynamicQuerySerializableInternal iLocalQuery = comparisonData.Column.Query as IDynamicQuerySerializableInternal;
types = Cache.GetParameters(iLocalQuery.DataID, (esProviderSpecificMetadata)iLocalQuery.ProviderMetadata, (esColumnMetadataCollection)iLocalQuery.Columns);
}
if (comparisonData.IsLiteral)
{
sql += comparisonData.Column.Name.Substring(1, comparisonData.Column.Name.Length - 2);
continue;
}
if (comparisonData.ComparisonColumn.Name == null)
{
subQuery = comparisonData.Value as esDynamicQuerySerializable;
if (subQuery == null)
{
if (comparisonData.Column.Name != null)
{
IDynamicQuerySerializableInternal iColQuery = comparisonData.Column.Query as IDynamicQuerySerializableInternal;
esColumnMetadataCollection columns = (esColumnMetadataCollection)iColQuery.Columns;
compareTo = Delimiters.Param + columns[comparisonData.Column.Name].PropertyName + (++pindex).ToString();
}
else
{
compareTo = Delimiters.Param + "Expr" + (++pindex).ToString();
}
}
else
{
// It's a sub query
compareTo = GetSubquerySearchCondition(subQuery) + " (" + BuildQuery(request, subQuery, cmd, ref pindex) + ") ";
requiresParam = false;
}
}
else
{
compareTo = GetColumnName(comparisonData.ComparisonColumn);
requiresParam = false;
}
switch (comparisonData.Operand)
{
case esComparisonOperand.Exists:
sql += " EXISTS" + compareTo;
break;
case esComparisonOperand.NotExists:
sql += " NOT EXISTS" + compareTo;
break;
//-----------------------------------------------------------
// Comparison operators, left side vs right side
//-----------------------------------------------------------
case esComparisonOperand.Equal:
if (comparisonData.ItemFirst)
{
sql += ApplyWhereSubOperations(comparisonData) + " = " + compareTo;
}
else
{
sql += compareTo + " = " + ApplyWhereSubOperations(comparisonData);
}
break;
case esComparisonOperand.NotEqual:
if (comparisonData.ItemFirst)
{
sql += ApplyWhereSubOperations(comparisonData) + " <> " + compareTo;
}
else
{
sql += compareTo + " <> " + ApplyWhereSubOperations(comparisonData);
}
break;
case esComparisonOperand.GreaterThan:
if (comparisonData.ItemFirst)
{
sql += ApplyWhereSubOperations(comparisonData) + " > " + compareTo;
}
else
{
sql += compareTo + " > " + ApplyWhereSubOperations(comparisonData);
}
break;
case esComparisonOperand.LessThan:
if (comparisonData.ItemFirst)
{
sql += ApplyWhereSubOperations(comparisonData) + " < " + compareTo;
}
else
{
sql += compareTo + " < " + ApplyWhereSubOperations(comparisonData);
}
break;
case esComparisonOperand.LessThanOrEqual:
if (comparisonData.ItemFirst)
{
sql += ApplyWhereSubOperations(comparisonData) + " <= " + compareTo;
}
else
{
sql += compareTo + " <= " + ApplyWhereSubOperations(comparisonData);
}
break;
case esComparisonOperand.GreaterThanOrEqual:
if (comparisonData.ItemFirst)
{
sql += ApplyWhereSubOperations(comparisonData) + " >= " + compareTo;
}
else
{
sql += compareTo + " >= " + ApplyWhereSubOperations(comparisonData);
}
break;
case esComparisonOperand.Like:
string esc = comparisonData.LikeEscape.ToString();
if (String.IsNullOrEmpty(esc) || esc == "\0")
{
sql += ApplyWhereSubOperations(comparisonData) + " LIKE " + compareTo;
needsStringParameter = true;
}
else
{
sql += ApplyWhereSubOperations(comparisonData) + " LIKE " + compareTo;
sql += " ESCAPE '" + esc + "'";
needsStringParameter = true;
}
break;
case esComparisonOperand.NotLike:
esc = comparisonData.LikeEscape.ToString();
if (String.IsNullOrEmpty(esc) || esc == "\0")
{
sql += ApplyWhereSubOperations(comparisonData) + " NOT LIKE " + compareTo;
needsStringParameter = true;
}
else
{
sql += ApplyWhereSubOperations(comparisonData) + " NOT LIKE " + compareTo;
sql += " ESCAPE '" + esc + "'";
needsStringParameter = true;
}
break;
case esComparisonOperand.Contains:
sql += " CONTAINS(" + GetColumnName(comparisonData.Column) + ", " + compareTo + ")";
paramType = DbType.AnsiStringFixedLength;
needsStringParameter = true;
break;
case esComparisonOperand.IsNull:
sql += ApplyWhereSubOperations(comparisonData) + " IS NULL";
requiresParam = false;
break;
case esComparisonOperand.IsNotNull:
sql += ApplyWhereSubOperations(comparisonData) + " IS NOT NULL";
requiresParam = false;
break;
case esComparisonOperand.In:
case esComparisonOperand.NotIn:
{
if (subQuery != null)
{
// They used a subquery for In or Not
sql += ApplyWhereSubOperations(comparisonData);
sql += (comparisonData.Operand == esComparisonOperand.In) ? " IN" : " NOT IN";
sql += compareTo;
}
else
{
comma = String.Empty;
if (comparisonData.Operand == esComparisonOperand.In)
{
sql += ApplyWhereSubOperations(comparisonData) + " IN (";
}
else
{
sql += ApplyWhereSubOperations(comparisonData) + " NOT IN (";
}
foreach (object oin in comparisonData.Values)
{
string str = oin as string;
if (str != null)
{
// STRING
sql += comma + Delimiters.StringOpen + str + Delimiters.StringClose;
comma = ",";
}
else if (null != oin as System.Collections.IEnumerable)
{
// LIST OR COLLECTION OF SOME SORT
System.Collections.IEnumerable enumer = oin as System.Collections.IEnumerable;
if (enumer != null)
{
System.Collections.IEnumerator iter = enumer.GetEnumerator();
while (iter.MoveNext())
{
object o = iter.Current;
string soin = o as string;
if (soin != null)
{
sql += comma + Delimiters.StringOpen + soin + Delimiters.StringClose;
}
else
{
sql += comma + Convert.ToString(o);
}
comma = ",";
}
}
}
else
{
// NON STRING OR LIST
sql += comma + Convert.ToString(oin);
comma = ",";
}
}
sql += ")";
requiresParam = false;
}
}
break;
case esComparisonOperand.Between:
sql += ApplyWhereSubOperations(comparisonData) + " BETWEEN ";
sql += compareTo;
if (comparisonData.ComparisonColumn.Name == null)
{
cmd.Parameters.AddWithValue(compareTo, comparisonData.BetweenBegin);
}
if (comparisonData.ComparisonColumn2.Name == null)
{
IDynamicQuerySerializableInternal iColQuery = comparisonData.Column.Query as IDynamicQuerySerializableInternal;
esColumnMetadataCollection columns = (esColumnMetadataCollection)iColQuery.Columns;
compareTo = Delimiters.Param + columns[comparisonData.Column.Name].PropertyName + (++pindex).ToString();
sql += " AND " + compareTo;
cmd.Parameters.AddWithValue(compareTo, comparisonData.BetweenEnd);
}
else
{
sql += " AND " + Delimiters.ColumnOpen + comparisonData.ComparisonColumn2 + Delimiters.ColumnClose;
}
requiresParam = false;
break;
}
if (requiresParam)
{
EfzParameter p;
if (comparisonData.Column.Name != null)
{
p = types[comparisonData.Column.Name];
p = Cache.CloneParameter(p);
p.ParameterName = compareTo;
p.Value = comparisonData.Value;
if (needsStringParameter)
{
p.DbType = paramType;
}
else if (std.needsIntegerParameter)
{
p.DbType = DbType.Int32;
}
}
else
{
p = new EfzParameter(compareTo, comparisonData.Value);
}
cmd.Parameters.Add(p);
}
}
}
return(sql);
}
static public EfzCommand BuildDynamicInsertCommand(esDataRequest request, List <string> modifiedColumns)
{
string sql = String.Empty;
string defaults = String.Empty;
string into = String.Empty;
string values = String.Empty;
string comma = String.Empty;
string defaultComma = String.Empty;
string where = String.Empty;
string whereComma = String.Empty;
PropertyCollection props = new PropertyCollection();
EfzParameter p = null;
Dictionary <string, EfzParameter> types = Cache.GetParameters(request);
EfzCommand cmd = new EfzCommand();
if (request.CommandTimeout != null)
{
cmd.CommandTimeout = request.CommandTimeout.Value;
}
esColumnMetadataCollection cols = request.Columns;
foreach (esColumnMetadata col in cols)
{
bool isModified = modifiedColumns == null ? false : modifiedColumns.Contains(col.Name);
if (isModified && (!col.IsAutoIncrement && !col.IsConcurrency && !col.IsEntitySpacesConcurrency))
{
p = types[col.Name];
cmd.Parameters.Add(CloneParameter(p));
into += comma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
values += comma + p.ParameterName;
comma = ", ";
}
else if (col.IsAutoIncrement)
{
props["AutoInc"] = col.Name;
props["Source"] = request.ProviderMetadata.Source;
p = CloneParameter(types[col.Name]);
p.Direction = ParameterDirection.Output;
cmd.Parameters.Add(p);
}
else if (col.IsConcurrency)
{
props["Timestamp"] = col.Name;
props["Source"] = request.ProviderMetadata.Source;
p = CloneParameter(types[col.Name]);
p.Direction = ParameterDirection.Output;
cmd.Parameters.Add(p);
}
else if (col.IsEntitySpacesConcurrency)
{
into += comma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
values += comma + "1";
comma = ", ";
p = CloneParameter(types[col.Name]);
p.Direction = ParameterDirection.Output;
p.Value = 1; // Seems to work, We'll take it ...
cmd.Parameters.Add(p);
}
else if (col.IsComputed)
{
// Do nothing but leave this here
}
else if (cols.IsSpecialColumn(col))
{
// Do nothing but leave this here
}
else if (col.HasDefault)
{
defaults += defaultComma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
defaultComma = ",";
string def = col.Default.ToLower();
if (def.Contains("guid") || def.Contains("newid"))
{
p = CloneParameter(types[col.Name]);
p.Direction = ParameterDirection.Output;
p.SourceVersion = DataRowVersion.Current;
cmd.Parameters.Add(p);
sql += " IF " + Delimiters.Param + col.Name + " IS NULL SET " +
Delimiters.Param + col.Name + " = NEWID();";
into += comma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
values += comma + p.ParameterName;
comma = ", ";
}
}
if (col.IsInPrimaryKey)
{
where += whereComma + col.Name;
whereComma = ",";
}
}
#region Special Columns
if (cols.DateAdded != null && cols.DateAdded.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.DateAdded.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["DateAdded.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.DateAdded.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
if (cols.DateModified != null && cols.DateModified.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["DateModified.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
if (cols.AddedBy != null && cols.AddedBy.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.AddedBy.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["AddedBy.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.AddedBy.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
if (cols.ModifiedBy != null && cols.ModifiedBy.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["ModifiedBy.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
#endregion
if (defaults.Length > 0)
{
comma = String.Empty;
props["Defaults"] = defaults;
props["Where"] = where;
}
sql += " INSERT INTO " + CreateFullName(request);
if (into.Length != 0)
{
sql += "(" + into + ") VALUES (" + values + ")";
}
else
{
sql += "DEFAULT VALUES";
}
request.Properties = props;
cmd.CommandText = sql;
cmd.CommandType = CommandType.Text;
return(cmd);
}
static public EfzCommand BuildDynamicUpdateCommand(esDataRequest request, List <string> modifiedColumns)
{
string where = String.Empty;
string scomma = String.Empty;
string wcomma = String.Empty;
string defaults = String.Empty;
string defaultsWhere = String.Empty;
string defaultsComma = String.Empty;
string defaultsWhereComma = String.Empty;
string sql = "UPDATE " + CreateFullName(request) + " SET ";
PropertyCollection props = new PropertyCollection();
EfzParameter p = null;
Dictionary <string, EfzParameter> types = Cache.GetParameters(request);
EfzCommand cmd = new EfzCommand();
if (request.CommandTimeout != null)
{
cmd.CommandTimeout = request.CommandTimeout.Value;
}
esColumnMetadataCollection cols = request.Columns;
foreach (esColumnMetadata col in cols)
{
bool isModified = modifiedColumns == null ? false : modifiedColumns.Contains(col.Name);
if (isModified && (!col.IsAutoIncrement && !col.IsConcurrency && !col.IsEntitySpacesConcurrency))
{
p = CloneParameter(types[col.Name]);
cmd.Parameters.Add(p);
sql += scomma;
sql += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
scomma = ", ";
}
else if (col.IsAutoIncrement)
{
// Nothing to do but leave this here
}
else if (col.IsConcurrency)
{
props["Timestamp"] = col.Name;
props["Source"] = request.ProviderMetadata.Source;
p = CloneParameter(types[col.Name]);
p.SourceVersion = DataRowVersion.Original;
p.Direction = ParameterDirection.InputOutput;
cmd.Parameters.Add(p);
where += wcomma;
where += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
wcomma = " AND ";
}
else if (col.IsEntitySpacesConcurrency)
{
props["EntitySpacesConcurrency"] = col.Name;
p = CloneParameter(types[col.Name]);
p.SourceVersion = DataRowVersion.Original;
p.Direction = ParameterDirection.InputOutput;
cmd.Parameters.Add(p);
sql += scomma;
sql += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " + 1";
scomma = ", ";
where += wcomma;
where += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
wcomma = " AND ";
}
else if (col.IsComputed)
{
// Do nothing but leave this here
}
else if (cols.IsSpecialColumn(col))
{
// Do nothing but leave this here
}
else if (col.HasDefault)
{
// defaults += defaultsComma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
// defaultsComma = ",";
}
if (col.IsInPrimaryKey)
{
p = CloneParameter(types[col.Name]);
p.SourceVersion = DataRowVersion.Original;
cmd.Parameters.Add(p);
where += wcomma;
where += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
wcomma = " AND ";
defaultsWhere += defaultsWhereComma + col.Name;
defaultsWhereComma = ",";
}
}
#region Special Columns
if (cols.DateModified != null && cols.DateModified.IsServerSide)
{
sql += scomma;
sql += Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose + " = " + request.ProviderMetadata["DateModified.ServerSideText"];
scomma = ", ";
defaults += defaultsComma + Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose;
defaultsComma = ",";
}
if (cols.ModifiedBy != null && cols.ModifiedBy.IsServerSide)
{
sql += scomma;
sql += Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose + " = " + request.ProviderMetadata["ModifiedBy.ServerSideText"];
scomma = ", ";
defaults += defaultsComma + Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose;
defaultsComma = ",";
}
#endregion
if (defaults.Length > 0)
{
props["Defaults"] = defaults;
props["Where"] = defaultsWhere;
}
sql += " WHERE " + where + ";";
request.Properties = props;
cmd.CommandText = sql;
cmd.CommandType = CommandType.Text;
return(cmd);
}
