public DbSchemaViewModel(DbSchema model)
{
this.Model = model;
}
public CodeBuisnessEntityWriter(Project project, DbSchema schema, DbTable table)
{
this.Project = project;
this.Table = table;
this.Schema = schema;
}
public DbSchema Read()
{
XmlDocument document = new XmlDocument();
using (FileStream stream = new FileStream(this.FileName, FileMode.Open))
{
using (StreamReader reader = new StreamReader(stream))
{
String txt = reader.ReadToEnd();
txt = txt.Replace("a:", "");
txt = txt.Replace("o:", "");
txt = txt.Replace("c:", "");
using (StringReader readerString = new StringReader(txt))
{ document.Load(readerString); }
}
}
XmlNode nodeModel = document.SelectSingleNode("/Model/RootObject/Children/Model");
if (nodeModel != null)
{
DbSchema schema = new DbSchema();
schema.Id = nodeModel.Attributes["Id"].Value;
schema.Name = nodeModel.SelectSingleNode("Code").InnerText;
schema.DisplayName = nodeModel.SelectSingleNode("Name").InnerText;
XmlNodeList nodeReferences = nodeModel.SelectNodes("References/Reference");
foreach (XmlNode nodeReference in nodeReferences)
{
if (nodeReference.SelectSingleNode("Cardinality").InnerText.Equals("0..*"))
{
DbKeyForeign fk = new DbKeyForeign();
fk.Id = nodeReference.Attributes["Id"].Value;
fk.Name = nodeReference.SelectSingleNode("Code").InnerText;
fk.DisplayName = nodeReference.SelectSingleNode("Name").InnerText;
fk.TableIdParent = nodeReference.SelectSingleNode("ParentTable/Table").Attributes["Ref"].Value;
fk.TableIdChild = nodeReference.SelectSingleNode("ChildTable/Table").Attributes["Ref"].Value;
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)
{
DbKeyForeignJoin join = new DbKeyForeignJoin();
join.Id = nodeJoin.Attributes["Id"].Value;
join.ColumnIdParent = nodeJoin.SelectSingleNode("Object1/Column").Attributes["Ref"].Value;
join.ColumnIdChild = nodeJoin.SelectSingleNode("Object2/Column").Attributes["Ref"].Value;
fk.Joins.Add(join);
}
schema.ForeignKeys.Add (fk);
}
}
XmlNodeList nodes = document.SelectNodes("/Model/RootObject/Children/Model/Tables/Table");
foreach (XmlNode nodeTable in nodes)
{
DbTable table = new DbTable();
table.Id = nodeTable.Attributes["Id"].Value;
table.Name = nodeTable.SelectSingleNode("Code").InnerText;
table.DisplayName = nodeTable.SelectSingleNode("Name").InnerText;
XmlNodeList nodeColumns = nodeTable.SelectNodes("Columns/Column");
XmlNode nodePk = nodeTable.SelectSingleNode("Keys/Key");
if (nodePk != null)
{
DbKeyPrimary pk = new DbKeyPrimary();
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); }
pk.TableId = table.Id;
schema.PrimaryKeys.Add(pk);
}
XmlNodeList nodeIndexes = nodeTable.SelectNodes("Indexes/Index");
foreach (XmlNode nodeIndex in nodeIndexes)
{
if (nodeIndex.SelectSingleNode("Code") != null)
{
String name = nodeIndex.SelectSingleNode("Code").InnerText;
if (nodeIndex.SelectSingleNode("Unique") != null && nodeIndex.SelectSingleNode("Unique").InnerText.Equals("1"))
{
DbKeyUnique uk = new DbKeyUnique();
uk.Id = nodeIndex.Attributes["Id"].Value;
uk.Name = nodeIndex.SelectSingleNode("Code").InnerText;
uk.DisplayName = nodeIndex.SelectSingleNode("Name").InnerText;
uk.TableId = table.Id;
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);
}
}
schema.UniqueKeys.Add(uk);
}
}
}
foreach (XmlNode nodeColumn in nodeColumns)
{
DbColumn column = new DbColumn();
column.Id = nodeColumn.Attributes["Id"].Value;
column.Name = nodeColumn.SelectSingleNode("Code").InnerText;
column.DisplayName = nodeColumn.SelectSingleNode("Name").InnerText;
column.DataType = nodeColumn.SelectSingleNode("DataType").InnerText;
column.Length = null;
if (nodeColumn.SelectSingleNode("Length") != null)
{ column.Length = Int32.Parse(nodeColumn.SelectSingleNode("Length").InnerText); }
column.AllowNull = true;
if (nodeColumn.SelectSingleNode("Mandatory") != null)
{
if (nodeColumn.SelectSingleNode("Mandatory").InnerText.Equals("1"))
{ column.AllowNull = false; }
}
table.Columns.Add(column);
}
schema.Tables.Add(table);
}
return schema;
}
return null;
}
