protected static string ApplyWhereSubOperations(StandardProviderParameters std, tgDynamicQuerySerializable query, tgComparison.tgComparisonData comparisonData)
{
string sql = string.Empty;
if (comparisonData.HasExpression)
{
sql += GetMathmaticalExpressionColumn(std, query, comparisonData.Expression);
if (comparisonData.SubOperators != null && comparisonData.SubOperators.Count > 0)
{
sql = BuildSubOperationsSql(std, sql, comparisonData.SubOperators);
}
return sql;
}
string delimitedColumnName = GetColumnName(comparisonData.Column);
if (comparisonData.SubOperators != null)
{
sql = BuildSubOperationsSql(std, delimitedColumnName, comparisonData.SubOperators);
}
else
{
sql = delimitedColumnName;
}
return sql;
}
/// <summary>
/// Used to describe the "where" conditions of the join itself
/// </summary>
/// <param name="items"></param>
/// <returns></returns>
public tgDynamicQuerySerializable On(params object[] items)
{
if (this.data.WhereItems == null)
{
this.data.WhereItems = new List <tgComparison>();
}
foreach (object item in items)
{
tgComparison wi = item as tgComparison;
if (wi != null)
{
if (wi.data.WhereExpression != null)
{
foreach (tgComparison exp in wi.data.WhereExpression)
{
tgDynamicQuerySerializable q = exp.Value as tgDynamicQuerySerializable;
if (q != null)
{
IDynamicQuerySerializableInternal iQ = q as IDynamicQuerySerializableInternal;
iQ.HookupProviderMetadata(q);
}
}
this.data.WhereItems.AddRange(wi.data.WhereExpression);
}
else
{
this.data.WhereItems.Add(wi);
}
tgDynamicQuerySerializable query = wi.Value as tgDynamicQuerySerializable;
if (query != null)
{
IDynamicQuerySerializableInternal iQ = query as IDynamicQuerySerializableInternal;
iQ.HookupProviderMetadata(query);
}
}
else
{
throw new Exception("Unsupported Join Syntax");
}
}
return(this.parentQuery);
}
/// <summary>
///
/// </summary>
/// <param name="c1"></param>
/// <param name="c2"></param>
/// <param name="op"></param>
/// <returns></returns>
private static tgComparison HandleOperator(tgComparison c1, tgComparison c2, tgConjunction op)
{
List <tgComparison> exp = null;
if (c1.data.WhereExpression == null)
{
c1.data.WhereExpression = new List <tgComparison>();
exp = c1.data.WhereExpression;
exp.Add(new tgComparison(tgParenthesis.Open));
exp.Add(c1);
}
else
{
exp = c1.data.WhereExpression;
exp.Insert(0, new tgComparison(tgParenthesis.Open));
}
tgConjunction conj = op;
if (c2.not)
{
switch (op)
{
case tgConjunction.And:
conj = tgConjunction.AndNot;
break;
case tgConjunction.Or:
conj = tgConjunction.OrNot;
break;
}
}
exp.Add(new tgComparison(conj));
if (c2.data.WhereExpression == null)
{
exp.Add(c2);
}
else
{
exp.AddRange(c2.data.WhereExpression);
}
exp.Add(new tgComparison(tgParenthesis.Close));
return(c1);
}
protected static string ApplyWhereSubOperations(StandardProviderParameters std, tgDynamicQuerySerializable query, tgComparison.tgComparisonData comparisonData)
{
string sql = string.Empty;
string delimitedColumnName = GetColumnName(comparisonData.Column);
if (comparisonData.SubOperators != null)
{
sql = BuildSubOperationsSql(std, delimitedColumnName, comparisonData.SubOperators);
}
else
{
sql = delimitedColumnName;
}
return sql;
}
public tgCase When(tgComparison comparison)
{
this.WhenItem = new tgExpressionOrComparison();
this.WhenItem.Comparisons = new List <tgComparison>();
if (comparison != null)
{
if (comparison.data.WhereExpression != null)
{
foreach (tgComparison exp in comparison.data.WhereExpression)
{
tgDynamicQuerySerializable q = exp.Value as tgDynamicQuerySerializable;
if (q != null)
{
IDynamicQuerySerializableInternal iQ = q as IDynamicQuerySerializableInternal;
iQ.HookupProviderMetadata(q);
}
}
this.WhenItem.Comparisons.AddRange(comparison.data.WhereExpression);
}
else
{
this.WhenItem.Comparisons.Add(comparison);
}
tgDynamicQuerySerializable query = comparison.Value as tgDynamicQuerySerializable;
if (query != null)
{
IDynamicQuerySerializableInternal iQ = query as IDynamicQuerySerializableInternal;
iQ.HookupProviderMetadata(query);
}
}
return(this);
}
private static tgComparison GreaterThanOrEqual(tgQueryItem queryItem, object literal, tgSystemType literalType, bool itemFirst)
{
tgComparison wi = new tgComparison(queryItem.query);
wi.Operand = tgComparisonOperand.GreaterThanOrEqual;
wi.data.Column = queryItem.Column;
wi.data.Value = literal;
wi.data.Expression = queryItem.Expression;
wi.data.ItemFirst = itemFirst;
wi.SubOperators = queryItem.SubOperators;
return wi;
}
/// <summary>
/// Greater Than or Equal >= (to use in Where clauses).
/// </summary>
/// <example>
/// The operators provide an alternative, natural syntax for DynamicQueries.
/// <code>
/// emps.Query.Where(emps.Query.BirthDate >= "2000-01-01");
/// </code>
/// </example>
/// <param name="item">Passed in via DynamicQuery</param>
/// <param name="value">Passed in via DynamicQuery</param>
/// <returns>The tgComparison returned to DynamicQuery</returns>
public static tgComparison operator >=(tgQueryItem item, tgQueryItem value)
{
tgComparison wi = new tgComparison(item.query);
wi.Operand = tgComparisonOperand.GreaterThanOrEqual;
wi.data.Column = item.Column;
wi.data.ComparisonColumn = value.Column;
wi.SubOperators = item.SubOperators;
return wi;
}
/// <summary>
/// Comparison ensuring that this column is NOT IN a list of values.
/// </summary>
/// <param name="value">The Query to provide the matching values for the NOT IN comparison</param>
/// <returns></returns>
public tgComparison NotIn(tgDynamicQuerySerializable subQuery)
{
tgComparison comparison = new tgComparison(this.query);
comparison.Operand = tgComparisonOperand.NotIn;
comparison.data.Column = this.Column;
comparison.SubOperators = this.SubOperators;
comparison.Value = subQuery;
this.query.AddQueryToList(subQuery);
return comparison;
}
/// <summary>
/// Comparison ensuring that this column is NOT IN a list of values.
/// See <see cref="tgComparisonOperand"/> Enumeration.
/// </summary>
/// <example>
/// <code>
/// Where(LastName.NotIn("Doe", "Smith", "Johnson"))
/// </code>
/// </example>
/// <param name="value">The list of values for comparison.</param>
/// <returns>The tgComparison returned to DynamicQuery.</returns>
public tgComparison NotIn(params object[] value)
{
List<object> values = new List<object>();
#region Convert object[] into a List<object>
object[] oValues = (object[])value;
foreach (object o in oValues)
{
string str = o as string;
if (str != null)
{
// String supports IEnumerable and we don't want to break
// up each individual character
values.Add(o);
}
else
{
IEnumerable enumer = o as IEnumerable;
if (enumer != null)
{
foreach (object oo in enumer)
{
values.Add(oo);
}
}
else
{
values.Add(o);
}
}
}
#endregion
tgComparison comparison = new tgComparison(this.query);
comparison.Operand = tgComparisonOperand.NotIn;
comparison.data.Column = this.Column;
comparison.SubOperators = this.SubOperators;
comparison.Values = values;
return comparison;
}
/// <summary>
/// Comparison ensuring that this column is BETWEEN two values.
/// See <see cref="tgComparisonOperand"/> Enumeration.
/// </summary>
/// <example>
/// <code>
/// Where(BirthDate.Between("2000-01-01", "2000-12-31"))
/// </code>
/// </example>
/// <param name="start">The starting value for comparison.</param>
/// <param name="end">The ending value for comparison.</param>
/// <returns>The tgComparison returned to DynamicQuery.</returns>
public tgComparison Between(object start, object end)
{
tgComparison comparison = new tgComparison(this.query);
comparison.Operand = tgComparisonOperand.Between;
comparison.SubOperators = this.SubOperators;
comparison.data.Column = this.Column;
tgQueryItem qi = start as tgQueryItem;
if (Object.Equals(qi, null))
{
comparison.BetweenBegin = start;
}
else
{
comparison.data.ComparisonColumn = qi.Column;
}
qi = end as tgQueryItem;
if (Object.Equals(qi, null))
{
comparison.BetweenEnd = end;
}
else
{
comparison.data.ComparisonColumn2 = qi.Column;
}
comparison.SubOperators = this.SubOperators;
return comparison;
}
/// <summary>
/// Comparison ensuring that the value passed in is NOT LIKE this column.
/// This overload takes a single escape character.
/// See <see cref="tgComparisonOperand"/> Enumeration.
/// </summary>
/// <example>
/// The optional escape character is used if the search phrase
/// contains one of the LIKE wildcards. For example,
/// the following will exclude columns with "30%" anywhere in them.
/// <code>
/// Where(Discount.NotLike("%30!//", '!'))
/// </code>
/// </example>
/// <param name="value">The value for comparison.</param>
/// <param name="escapeCharacter">The single escape character.</param>
/// <returns>The tgComparison returned to DynamicQuery.</returns>
public tgComparison NotLike(object value, char escapeCharacter)
{
tgComparison comparison = new tgComparison(this.query);
comparison.data.Column = this.Column;
comparison.data.LikeEscape = escapeCharacter;
comparison.Operand = tgComparisonOperand.NotLike;
comparison.SubOperators = this.SubOperators;
tgQueryItem qi = value as tgQueryItem;
if (Object.Equals(qi, null))
{
comparison.data.Value = value;
}
else
{
comparison.data.ComparisonColumn = qi.Column;
}
return comparison;
}
private tgComparison CreateComparisonParameter(tgComparisonOperand operand)
{
tgComparison comparison = new tgComparison(this.query);
comparison.Operand = operand;
if (this.HasExpression)
{
comparison.data.Expression = this.Expression;
}
comparison.data.Column = this.Column;
comparison.SubOperators = this.SubOperators;
return comparison;
}
private tgComparison CreateComparisonParameter(tgComparisonOperand operand, object value)
{
tgComparison comparison = null;
tgQueryItem qi = value as tgQueryItem;
if (Object.Equals(qi, null))
{
comparison = new tgComparison(this.query);
comparison.Operand = operand;
if (this.HasExpression)
{
comparison.data.Expression = this.Expression;
}
comparison.data.Column = this.Column;
comparison.data.Value = value;
comparison.SubOperators = this.SubOperators;
}
else
{
comparison = new tgComparison(this.query);
comparison.Operand = operand;
comparison.data.Column = this.Column;
comparison.data.ComparisonColumn = qi.Column;
comparison.SubOperators = qi.SubOperators;
}
return comparison;
}
/// <summary>
///
/// </summary>
/// <param name="c1"></param>
/// <param name="c2"></param>
/// <param name="op"></param>
/// <returns></returns>
private static tgComparison HandleOperator(tgComparison c1, tgComparison c2, tgConjunction op)
{
List<tgComparison> exp = null;
if (c1.data.WhereExpression == null)
{
c1.data.WhereExpression = new List<tgComparison>();
exp = c1.data.WhereExpression;
exp.Add(new tgComparison(tgParenthesis.Open));
exp.Add(c1);
}
else
{
exp = c1.data.WhereExpression;
exp.Insert(0, new tgComparison(tgParenthesis.Open));
}
tgConjunction conj = op;
if (c2.not)
{
switch (op)
{
case tgConjunction.And:
conj = tgConjunction.AndNot;
break;
case tgConjunction.Or:
conj = tgConjunction.OrNot;
break;
}
}
exp.Add(new tgComparison(conj));
if (c2.data.WhereExpression == null)
{
exp.Add(c2);
}
else
{
exp.AddRange(c2.data.WhereExpression);
}
exp.Add(new tgComparison(tgParenthesis.Close));
return c1;
}
public tgCase When(tgComparison comparison)
{
this.WhenItem = new tgExpressionOrComparison();
this.WhenItem.Comparisons = new List<tgComparison>();
if (comparison != null)
{
if (comparison.data.WhereExpression != null)
{
foreach (tgComparison exp in comparison.data.WhereExpression)
{
tgDynamicQuerySerializable q = exp.Value as tgDynamicQuerySerializable;
if (q != null)
{
IDynamicQuerySerializableInternal iQ = q as IDynamicQuerySerializableInternal;
iQ.HookupProviderMetadata(q);
}
}
this.WhenItem.Comparisons.AddRange(comparison.data.WhereExpression);
}
else
{
this.WhenItem.Comparisons.Add(comparison);
}
tgDynamicQuerySerializable query = comparison.Value as tgDynamicQuerySerializable;
if (query != null)
{
IDynamicQuerySerializableInternal iQ = query as IDynamicQuerySerializableInternal;
iQ.HookupProviderMetadata(query);
}
}
return this;
}