protected virtual ControllerConfiguration LoadConfig(string controllerName)
{
ControllerConfiguration config = null;
if (!(_controllers.TryGetValue(controllerName, out config)))
{
config = DataControllerBase.CreateConfigurationInstance(GetType(), controllerName);
_controllers[controllerName] = config;
}
return(config);
}
ControllerConfiguration IPlugIn.Create(ControllerConfiguration config)
{
if (config.Navigator.CanEdit)
{
return(config);
}
var document = new XmlDocument();
document.LoadXml(config.Navigator.OuterXml);
return(new ControllerConfiguration(document.CreateNavigator()));
}
protected virtual void ProcessResult(ControllerConfiguration config, ActionResult result)
{
if (_pk != null)
{
foreach (var fvo in result.Values)
{
if (fvo.Name == _pk.Name)
{
ResolvePrimaryKey(config.ControllerName, fvo.Name, _pk.Value, fvo.Value);
break;
}
}
}
}
public ControllerConfiguration Virtualize(string controllerName)
{
var config = this;
if (!_navigator.CanEdit)
{
var doc = new XmlDocument();
doc.LoadXml(_navigator.OuterXml);
config = new ControllerConfiguration(doc.CreateNavigator());
}
var rules = CreateBusinessRules();
if (rules != null)
{
rules.VirtualizeController(controllerName, config._navigator, config._namespaceManager);
config.PendingAlterations = rules.PendingAlterations;
}
return(config);
}
public void AssignContext(string controller, string view, ControllerConfiguration config)
{
_controller = controller;
_view = view;
var referrer = string.Empty;
if ((PageSize == 1000) && string.IsNullOrEmpty(this.SortExpression))
{
// we are processing a request to retrieve static lookup data
var sortExpressionNode = config.SelectSingleNode("c:dataController/c:views/c:view[@id=\'{0}\']/@sortExpression", view);
if ((sortExpressionNode != null) && !(string.IsNullOrEmpty(sortExpressionNode.Value)))
{
this.SortExpression = sortExpressionNode.Value;
}
}
if ((HttpContext.Current != null) && (HttpContext.Current.Request.UrlReferrer != null))
{
referrer = HttpContext.Current.Request.UrlReferrer.AbsolutePath;
}
this._contextKey = string.Format("{0}/{1}.{2}.{3}", referrer, controller, view, ContextKey);
}
public virtual ControllerConfiguration EnsureVitalElements()
{
// verify that the data controller has views and actions
var root = SelectSingleNode("/c:dataController[c:views/c:view and c:actions/c:actionGroup]");
if (root != null)
{
return(this);
}
// add missing configuration elements
var doc = new XmlDocument();
doc.LoadXml(_navigator.OuterXml);
var config = new ControllerConfiguration(doc.CreateNavigator());
var fieldsNode = config.SelectSingleNode("/c:dataController/c:fields[not(c:field[@isPrimaryKey=\'true\'])]");
if (fieldsNode != null)
{
fieldsNode.AppendChild("<field name=\"PrimaryKey\" type=\"Int32\" isPrimaryKey=\"true\" readOnly=\"true\"/>");
}
root = config.SelectSingleNode("/c:dataController");
EnsureChildNode(root, "views");
var viewsNode = config.SelectSingleNode("/c:dataController/c:views[not(c:view)]");
if (viewsNode != null)
{
var sb = new StringBuilder("<view id=\"view1\" type=\"Form\" label=\"Form\"><categories><category id=\"c1\" flow=\"New" +
"Column\"><dataFields>");
var fieldIterator = config.Select("/c:dataController/c:fields/c:field");
while (fieldIterator.MoveNext())
{
var fieldName = fieldIterator.Current.GetAttribute("name", string.Empty);
var hidden = (fieldName == "PrimaryKey");
var length = fieldIterator.Current.GetAttribute("length", string.Empty);
if (string.IsNullOrEmpty(length) && (((bool)(fieldIterator.Current.Evaluate("not(c:items/@style!=\'\')", _resolver))) == true))
{
if (fieldIterator.Current.GetAttribute("type", string.Empty) == "String")
{
length = "50";
}
else
{
length = "20";
}
}
sb.AppendFormat("<dataField fieldName=\"{0}\" hidden=\"{1}\"", fieldName, hidden.ToString().ToLower());
if (!(string.IsNullOrEmpty(length)))
{
sb.AppendFormat(" columns=\"{0}\"", length);
}
sb.Append(" />");
}
sb.Append("</dataFields></category></categories></view>");
viewsNode.AppendChild(sb.ToString());
}
EnsureChildNode(root, "actions");
var actionsNode = config.SelectSingleNode("/c:dataController/c:actions[not(c:actionGroup)]");
if (actionsNode != null)
{
actionsNode.AppendChild(@"<actionGroup id=""ag1"" scope=""Form"">
<action id=""a1"" commandName=""Confirm"" causesValidation=""true"" whenLastCommandName=""New"" />
<action id=""a2"" commandName=""Cancel"" whenLastCommandName=""New"" />
<action id=""a3"" commandName=""Confirm"" causesValidation=""true"" whenLastCommandName=""Edit"" />
<action id=""a4"" commandName=""Cancel"" whenLastCommandName=""Edit"" />
<action id=""a5"" commandName=""Edit"" causesValidation=""true"" />
</actionGroup>");
}
var plugIn = config.SelectSingleNode("/c:dataController/@plugIn");
if (plugIn != null)
{
plugIn.DeleteSelf();
config._plugIn = null;
}
return(config);
}
protected virtual void ProcessArguments(ControllerConfiguration config, ActionArgs args)
{
if (args.Values == null)
{
return;
}
var values = new FieldValueDictionary(args);
_pk = null;
// detect negative primary keys
var pkNav = config.SelectSingleNode("/c:dataController/c:fields/c:field[@isPrimaryKey=\'true\']");
if (pkNav != null)
{
FieldValue fvo = null;
if (values.TryGetValue(pkNav.GetAttribute("name", string.Empty), out fvo))
{
var value = 0;
if ((fvo.NewValue != null) && int.TryParse(Convert.ToString(fvo.NewValue), out value))
{
if (value < 0)
{
if (args.CommandName == "Insert")
{
// request a new row from business rules
var newRowRequest = new PageRequest();
newRowRequest.Controller = args.Controller;
newRowRequest.View = args.View;
newRowRequest.Inserting = true;
newRowRequest.RequiresMetaData = true;
newRowRequest.MetadataFilter = new string[] {
"fields"
};
var page = ControllerFactory.CreateDataController().GetPage(newRowRequest.Controller, newRowRequest.View, newRowRequest);
if (page.NewRow != null)
{
for (var i = 0; (i < page.NewRow.Length); i++)
{
var newValue = page.NewRow[i];
if (newValue != null)
{
var field = page.Fields[i];
if (field.IsPrimaryKey)
{
// resolve the value of the primary key
ResolvePrimaryKey(args.Controller, fvo.Name, value, newValue);
value = 0;
fvo.NewValue = newValue;
}
else
{
// inject a missing default value in the arguments
FieldValue newFieldValue = null;
if (values.TryGetValue(field.Name, out newFieldValue))
{
if (!newFieldValue.Modified)
{
newFieldValue.NewValue = newValue;
newFieldValue.Modified = true;
}
}
else
{
var newValues = new List <FieldValue>(args.Values);
newFieldValue = new FieldValue(field.Name, newValue);
newValues.Add(newFieldValue);
args.Values = newValues.ToArray();
values[field.Name] = newFieldValue;
}
}
}
}
}
}
// resolve the primary key after the command execution
if (value < 0)
{
if (args.CommandName == "Insert")
{
if (pkNav.SelectSingleNode("c:items/@dataController", config.Resolver) == null)
{
_pk = new FieldValue(fvo.Name, value);
fvo.NewValue = null;
fvo.Modified = false;
}
}
else
{
// otherwise try to resolve the primary key
object resolvedKey = null;
if (_resolvedKeys.TryGetValue(string.Format("{0}${1}", args.Controller, fvo.Value), out resolvedKey))
{
if (fvo.Modified)
{
fvo.NewValue = resolvedKey;
}
else
{
fvo.OldValue = resolvedKey;
}
}
}
}
}
}
}
}
// resolve negative foreign keys
if (_resolvedKeys.Count > 0)
{
var fkIterator = config.Select("/c:dataController/c:fields/c:field[c:items/@dataController]");
while (fkIterator.MoveNext())
{
FieldValue fvo = null;
if (values.TryGetValue(fkIterator.Current.GetAttribute("name", string.Empty), out fvo))
{
var itemsDataControllerNav = fkIterator.Current.SelectSingleNode("c:items/@dataController", config.Resolver);
object resolvedKey = null;
if (_resolvedKeys.TryGetValue(string.Format("{0}${1}", itemsDataControllerNav.Value, fvo.Value), out resolvedKey))
{
if (fvo.Modified)
{
fvo.NewValue = resolvedKey;
}
else
{
fvo.OldValue = resolvedKey;
}
}
}
}
}
}