private static bool HasQuerySourceAttributeConditions(SqlQuerySourceAttribute attribute,
IEnumerable <SqlQueryCondition> conditions)
{
if (conditions == null)
{
return(false);
}
foreach (var condition in conditions)
{
var b = false;
if ((condition.Condition == ConditionOperation.Exp ||
condition.Condition == ConditionOperation.Include) &&
condition.Conditions != null)
{
b = condition.Conditions.All(
c => c.Left.Attributes != null && c.Left.Attributes.All(a => a.Attribute == attribute) &&
(!c.Right.IsAttribute || c.Right.Attributes.All(a => a.Attribute == attribute)));
}
else if (condition.Attributes != null)
{
b = condition.Left.Attributes.All(attr => attr.Attribute == attribute) &&
(!condition.Right.IsAttribute ||
condition.Right.Attributes.All(a => a.Attribute == attribute));
}
if (b)
{
return(true);
}
}
return(false);
}
private static object GetSubQueryAttrAlias(SqlQuerySourceAttribute attr)
{
var subQueryAttr = attr as SqlQuerySubSourceAttribute;
if (subQueryAttr != null && subQueryAttr.Attribute != null)
{
return(String.IsNullOrEmpty(subQueryAttr.Attribute.Alias)
? subQueryAttr.Attribute.AliasName
: subQueryAttr.Attribute.Alias);
}
return(attr.AliasName);
}
public SqlQueryOrderAttribute(SqlQuerySource source, SqlQuerySourceAttribute attribute, bool asc) : base(source, attribute)
{
Asc = asc;
}
protected SqlQueryAttribute(SqlQuerySource source, SqlQuerySourceAttribute attribute)
{
_attributes.Add(new SqlQuerySourceAttributeRef(source, attribute));
}
private static IEnumerable <SqlQueryCondition> GetQuerySourceAttributeConditions(SqlQuerySourceAttribute attribute,
IEnumerable <SqlQueryCondition> conditions)
{
if (conditions == null)
{
yield break;
}
foreach (var condition in conditions)
{
var b = false;
if ((condition.Condition == ConditionOperation.Exp ||
condition.Condition == ConditionOperation.Include) &&
condition.Conditions != null)
{
b = condition.Conditions.All(
c => c.Condition != ConditionOperation.Exp && c.Condition != ConditionOperation.Include &&
c.Left.Attributes != null && c.Left.Attributes.All(a => a.Attribute == attribute) &&
(!c.Right.IsAttribute || c.Right.Attributes.All(a => a.Attribute == attribute))) &&
!condition.Conditions.Any(
c => c.Condition == ConditionOperation.IsNull || c.Condition == ConditionOperation.IsNotNull);
}
else if (condition.Attributes != null)
{
b = condition.Left.Attributes.All(attr => attr.Attribute == attribute) &&
(!condition.Right.IsAttribute ||
condition.Right.Attributes.All(a => a.Attribute == attribute)) &&
!(condition.Condition == ConditionOperation.IsNull ||
condition.Condition == ConditionOperation.IsNotNull);
}
/*
* if (condition.SubQuery != null)
* {
* //condition.Left.SubQuery.Attribute.Attributes
* continue;
* }
*/
if (b)
{
yield return(condition);
}
}
}
public SqlQuerySourceAttributeRef(SqlQuerySource source, SystemIdent attrIdent)
{
Source = source;
Attribute = source.GetAttribute(attrIdent);
}
public SqlQuerySourceAttributeRef(SqlQuerySource source, string attrDefName)
{
Source = source;
Attribute = source.GetAttribute(attrDefName);
}
public SqlQuerySourceAttributeRef(SqlQuerySource source, Guid attrDefId)
{
Source = source;
Attribute = source.GetAttribute(attrDefId);
}
public SqlQuerySourceAttributeRef(SqlQuerySource source, SqlQuerySourceAttribute attribute)
{
Source = source;
Attribute = attribute;
}
public SqlQueryGroupAttribute(SqlQuerySource source, SqlQuerySourceAttribute attribute)
: base(source, attribute)
{
}