public static RelationSide createRelationSide(Type targetClass, string fieldName, RelationSideQuantifier quantifier)
{
RelationSide rs = new RelationSide();
rs.targetClass = targetClass;
rs.fieldName = fieldName;
rs.quantifier = quantifier;
//тут еще должно быть присвоение филдинфо через создание sampleObject
return(rs);
}
public string asLeftJoinQueryPart(string mySideEntityName)
{
//возвращает предикат left join для этого relation для использования в селект-запросах
RelationSide mrs = getMyRelationSide(mySideEntityName);
RelationSide ors = getAnotherRelationSide(mySideEntityName);
string s = string.Format("left join {0} on {1}.{2} = {3}.{4}", ors.tableName, mrs.tableName, mrs.fieldName, ors.tableName, ors.fieldName); // + тут должна быть другая таблица, значит, надо передавать myside
return(s);
}
public static string SideToNameSuffix(RelationSide side)
{
switch (side)
{
case RelationSide.Left:
return("");
case RelationSide.Right:
return("2");
default:
return(Enum.GetName(typeof(RelationSide), side));
}
}
public RelationSide getAnotherRelationSide(IKeepable sampleObject)
{
//определяет сторону, которую занимает переданный объект, и возвращает другую
RelationSide rls = getRealtionSideByClassName(sampleObject.entityType);
if (rls == null)
{
return(null);
}
if (rls.relationSideQualifier == "A")
{
return(B);
}
else
{
return(A);
}
}
public RelationSide getAnotherRelationSide(string mySideEntityName)
{
//определяет сторону, которую занимает переданный объект, и возвращает другую
RelationSide rls = getRealtionSideByClassName(mySideEntityName);
if (rls == null)
{
return(null);
}
if (rls.relationSideQualifier == "A")
{
return(B);
}
else
{
return(A);
}
}
public bool isMyRelation_where_im_obligatory(IKeepable sampleObject)
{
//определяет, является ли sampleObject той стороной этого relation, где он обязателен
RelationSide rs = getRealtionSideByClassName(sampleObject.entityType);
if (rs == null)
{
return(false);
}
if (rs.isObligatory)
{
return(true);
}
else
{
return(false);
}
}
public static bool Equals(RelationSide A, RelationSide B)
{
bool AIsNull = (A == null);
bool BIsNull = (B == null);
if (AIsNull && BIsNull)
{
return(true);
}
if (AIsNull && !BIsNull)
{
return(false);
}
if (!AIsNull && BIsNull)
{
return(false);
}
return((A.targetClassName == B.targetClassName) && (A.fieldName == B.fieldName));
}
private void MakeName(RelationSide side, bool warnDuplicateDetected = true)
{
bool isListName =
(side == RelationSide.Right && cardinality == Cardinality.RM_1) ||
(side == RelationSide.Left && cardinality == Cardinality.R1_M) ||
cardinality == Cardinality.RM_M;
string suffix = isListName ? "List" : "";
Entity nameSource = side == RelationSide.Left ? Entity2 : Entity;
string root = nameSource.Name;
string newName = String.Format("{0}{1}", root, suffix);
bool generated = false;
int counter = 1;
while (Model.Relations.RelationExists(Entity, Entity2, newName, "*") ||
Model.Relations.RelationExists(Entity, Entity2, "*", newName))
{
generated = true;
newName = String.Format("{0}{1}{2}", root, counter++, suffix);
}
if (side == RelationSide.Left)
{
name = newName;
}
else
{
name2 = newName;
}
bool navigated = (side == RelationSide.Left && Navigate) || (side == RelationSide.Right && Navigate2);
if (generated && navigated && warnDuplicateDetected)
{
Logger.Warning(WarningLevel.High,
"Relation name{0} \"{1}\" was generated for navigation. Specify name explicitely to avoid it. {2}",
SideToNameSuffix(side), newName, this);
}
}
