public DbConstraintFkJoinViewModel( DbForeignKeyJoin model)
{
// TODO: Complete member initialization
this._model = model;
}
private void LoadConstraints(DbSchema schema, XmlDocument doc)
{
XmlNode nodeModel = doc.SelectSingleNode("/Model/RootObject/Children/Model");
XmlNodeList nodes = doc.SelectNodes("/Model/RootObject/Children/Model/Tables/Table");
XmlNodeList nodeReferences = nodeModel.SelectNodes("References/Reference");
foreach (XmlNode nodeReference in nodeReferences)
{
if (nodeReference.SelectSingleNode("Cardinality").InnerText.Equals("0..*"))
{
DbForeignKey fk = new DbForeignKey();
fk.Id = nodeReference.Attributes["Id"].Value;
fk.Name = nodeReference.SelectSingleNode("Code").InnerText;
fk.DisplayName = nodeReference.SelectSingleNode("Name").InnerText;
DbTable parentTable = (from t in schema.Tables where t.Id.Equals (nodeReference.SelectSingleNode ("ParentTable/Table").Attributes["Ref"].Value) select t).FirstOrDefault();
DbTable childTable = (from t in schema.Tables where t.Id.Equals(nodeReference.SelectSingleNode("ChildTable/Table").Attributes["Ref"].Value) select t).FirstOrDefault();
fk.ParentTableId = parentTable.Id;
fk.ChildTableId = childTable.Id;
childTable.ForeignKeys.Add(fk);
fk.UpdateOnCascade = nodeReference.SelectSingleNode("UpdateConstraint").InnerXml.Equals("1");
fk.DeleteOnCascade = nodeReference.SelectSingleNode("DeleteConstraint").InnerXml.Equals("1");
XmlNodeList nodeJoins = nodeReference.SelectNodes("Joins/ReferenceJoin");
foreach (XmlNode nodeJoin in nodeJoins)
{
DbForeignKeyJoin join = new DbForeignKeyJoin();
join.Id = nodeJoin.Attributes["Id"].Value;
String parentRef = nodeJoin.SelectSingleNode("Object1/Column").Attributes["Ref"].Value;
String childRef = nodeJoin.SelectSingleNode("Object2/Column").Attributes["Ref"].Value;
DbColumn parentColumn = (from c in parentTable.Columns where c.Id.Equals(parentRef) select c).FirstOrDefault();
DbColumn childColumn = (from c in childTable.Columns where c.Id.Equals(childRef) select c).FirstOrDefault();
if (parentColumn == null) throw new Exception ("Colonne parent null");
if (childColumn == null) throw new Exception("Colonne fille null");
join.ParentColumnId = parentColumn.Id;
join.ChildColumnId = childColumn.Id;
fk.Joins.Add(join);
}
}
}
foreach (XmlNode nodeTable in nodes)
{
String id = nodeTable.Attributes["Id"].Value;
DbTable table = (from t in schema.Tables where t.Id.Equals(id) select t).FirstOrDefault();
XmlNode nodePk = nodeTable.SelectSingleNode("Keys/Key");
if (nodePk != null)
{
DbPrimaryKey pk = new DbPrimaryKey();
pk.Id = nodePk.Attributes["Id"].Value;
pk.Name = nodePk.SelectSingleNode("Code").InnerText;
pk.DisplayName = nodePk.SelectSingleNode("Name").InnerText;
XmlNodeList pkColumnNodeList = nodePk.SelectNodes("Key.Columns/Column");
foreach (XmlNode pkColumnNode in pkColumnNodeList)
{ pk.ColumnIds.Add(pkColumnNode.Attributes["Ref"].Value); }
table.PrimaryKey = pk;
}
if (table.PrimaryKey == null)
{
throw new Exception("Table " + table.Name + " sans clé primaire");
}
XmlNodeList nodeIndexes = nodeTable.SelectNodes("Indexes/Index");
foreach (XmlNode nodeIndex in nodeIndexes)
{
if (nodeIndex.SelectSingleNode("Code") != null)
{
String name = nodeIndex.SelectSingleNode("Code").InnerText;
if ((table.PrimaryKey != null && !table.PrimaryKey.Name.Equals(name)) || table.PrimaryKey == null)
{
if (nodeIndex.SelectSingleNode("Unique") != null && nodeIndex.SelectSingleNode("Unique").InnerText.Equals("1"))
{
DbUniqueKey uk = new DbUniqueKey();
uk.Id = nodeIndex.Attributes["Id"].Value;
uk.Name = nodeIndex.SelectSingleNode("Code").InnerText;
uk.DisplayName = nodeIndex.SelectSingleNode("Name").InnerText;
XmlNodeList pkColumnNodeList = nodeIndex.SelectNodes("IndexColumns/IndexColumn");
foreach (XmlNode pkColumnNode in pkColumnNodeList)
{
XmlNode nodCol = pkColumnNode.SelectSingleNode("IndexColumn.Expression");
if (nodCol != null)
{
String expression = nodCol.InnerText;
expression = expression.Replace(" ", "");
expression = expression.Replace("(", "");
expression = expression.Replace(")", "");
DbColumn column = (from c in table.Columns where c.Name.Equals(expression) select c).FirstOrDefault();
uk.ColumnIds.Add(column.Id);
}
}
if (uk.ColumnIds.Count > 0)
{
table.UniqueKeys.Add(uk);
}
}
}
}
}
}
}