public Form1()
{
InitializeComponent();
isDbHandlerInitialized = false;
isSlxModelInitialized = false;
this.fields = new FieldInformationManager(this.Log);
this.cmbNewSize.Text = strKeepCurrent;
}
/// <summary>
/// Updates a FieldInformationCollection instance
/// filling it with field data read from the db
/// </summary>
/// <param name="dbFields">The field collection to update</param>
/// <returns></returns>
public FieldInformationManager ReadTableDataFromSLXDb(FieldInformationManager dbFields)
{
OpenDbConnection();
var cmd = dbConnection.CreateCommand();
cmd.CommandText = DbHandler.getFieldsQueryString;
cmd.CommandType = System.Data.CommandType.Text;
// read the field information from the db
var recSet = cmd.ExecuteReader();
if (!recSet.HasRows)
throw new Exception("No field information found in the db. Check your configuration!");
// read sql info for each field
while (recSet.Read())
{
FieldInformation f = dbFields.InitField(recSet["TableName"].ToString(), recSet["FieldName"].ToString());
f.sqlType = recSet["SqlDataType"].ToString();
f.sqlLength = (int) recSet["SqlMaximumLength"];
}
recSet.Close();
CloseConnection();
return dbFields;
}
/// <summary>
/// Fills the provided FieldInformationManager instance
/// with entity metadata coming from the Model
/// </summary>
/// <param name="dbFields"></param>
/// <returns></returns>
public FieldInformationManager FindEntityModels(FieldInformationManager dbFields)
{
/* Example XML property snippet:
* <property xsi:type="OrmFieldProperty" id="d6e61b3a-4663-4d89-a605-beb0fc07cae2" lastModifiedUtc="2009-04-20T02:51:53.3856462Z" name="LastName" audited="false" columnName="LASTNAME" maxLength="50" precision="0" scale="0" ordinal="5" isReadOnly="false" isDynamic="false">
* <ExtendedPropertiesCollection>
* <extendee type="Sage.Platform.Orm.Entities.OrmFieldProperty" />
* </ExtendedPropertiesCollection>
* <SystemDataType guid="ccc0f01d-7ba5-408e-8526-a3f942354b3a">
* <TextDataType>
* <Length>50</Length>
* </TextDataType>
* </SystemDataType>
* </property>
* <property xsi:type="OrmFieldProperty" id="37a5bc92-84cc-4e43-ab62-6c9c6208bb84" lastModifiedUtc="2011-04-13T14:56:08.9030225Z" name="CountryLocal" audited="false" columnName="COUNTRYLOCAL" maxLength="64" precision="0" scale="0" ordinal="8" isReadOnly="false" isDynamic="false">
* <ExtendedPropertiesCollection>
* <extendee type="Sage.Platform.Orm.Entities.OrmFieldProperty" />
* </ExtendedPropertiesCollection>
* <SystemDataType guid="76c537a8-8b08-4b35-84cf-fa95c6c133b0">
* <UnicodeTextDataType>
* <Length>64</Length>
* </UnicodeTextDataType>
* </SystemDataType>
* </property>
*/
try
{
foreach (XPathDocument entityXml in ModelPersister.GetEntityFiles())
{
ReadFieldInformationsForEntity(dbFields, entityXml.CreateNavigator());
}
}
catch (Exception)
{
throw new Exception("Error reading entity model files!");
}
return dbFields;
}
private static void ReadFieldInformationsForEntity(FieldInformationManager dbFields, XPathNavigator nav)
{
var tableName = nav.SelectSingleNode("//entity").GetAttribute("tableName", String.Empty);
foreach (XPathNavigator property in nav.Select("//property"))
{
string slxType = GetSlxTypeOfXmlProperty(property);
if (!String.IsNullOrEmpty(slxType))
{
var propertyName = property.GetAttribute("columnName", String.Empty).ToString();
var field = dbFields.InitField(tableName.ToUpper(), propertyName.ToUpper());
field.slxType = slxType;
field.slxLength = GetFieldLengthFromPropertyXml(property);
}
}
}
