void Awake()
{
_context = GetComponent <DataBindContext>();
OnPropertyChanged(nameof(Name), _state.Name);
OnPropertyChanged(nameof(Count), _state.Count);
OnPropertyChanged(nameof(Active), _state.Active);
}
private bool ShouldIgnoreProperty(PropertyInfo prop, DataBindContext ctx)
{
return(!prop.CanWrite ||
(ctx.AllowedProperties != null &&
Array.IndexOf(ctx.AllowedProperties, prop.Name) == -1) ||
(ctx.ExcludedProperties != null &&
Array.IndexOf(ctx.ExcludedProperties, prop.Name) != -1));
}
private void Awake()
{
m_Context = GetComponent <DataBindContext>();
m_NumberItems = new ObservableList("Items");
m_Context["Items"] = m_NumberItems;
m_Context["Number"] = 0;
}
public object BindObjectInstance(object instance, String paramPrefix, NameValueCollection paramList,
IDictionary files, IList errorList)
{
paramPrefix = NormalizeParamPrefix(paramPrefix);
String root = GetRoot(instance.GetType(), paramPrefix);
DataBindContext ctx = new DataBindContext(root, paramList, files, errorList, null, null);
return(InternalRecursiveBindObjectInstance(instance, paramPrefix, DefaultNestedLevelsLeft, ctx));
}
public object BindObject(Type instanceType, String paramPrefix, NameValueCollection paramList,
IDictionary files, IList errorList, int nestedLevel, String excludedProperties, String allowProperties)
{
String root = GetRoot(instanceType, paramPrefix);
paramPrefix = NormalizeParamPrefix(paramPrefix);
String[] excludedPropertyList = CreateNormalizedList(excludedProperties);
String[] allowPropertyList = CreateNormalizedList(allowProperties);
DataBindContext ctx = new DataBindContext(root, paramList, files, errorList, excludedPropertyList, allowPropertyList);
return(InternalBindObject(instanceType, paramPrefix, nestedLevel, ctx));
}
protected void SaveManyMappings(object instance, ActiveRecordModel model, DataBindContext context)
{
foreach (HasManyModel hasManyModel in model.HasMany)
{
if (hasManyModel.HasManyAtt.Inverse)
{
continue;
}
if (hasManyModel.HasManyAtt.RelationType != RelationType.Bag &&
hasManyModel.HasManyAtt.RelationType != RelationType.Set)
{
continue;
}
ActiveRecordModel otherModel = ActiveRecordModel.GetModel(hasManyModel.HasManyAtt.MapType);
PrimaryKeyModel keyModel = ARCommonUtils.ObtainPKProperty(otherModel);
if (otherModel == null || keyModel == null)
{
continue; // Impossible to save
}
CreateMappedInstances(instance, hasManyModel.Property, keyModel, otherModel, context);
}
foreach (HasAndBelongsToManyModel hasManyModel in model.HasAndBelongsToMany)
{
if (hasManyModel.HasManyAtt.Inverse)
{
continue;
}
if (hasManyModel.HasManyAtt.RelationType != RelationType.Bag &&
hasManyModel.HasManyAtt.RelationType != RelationType.Set)
{
continue;
}
ActiveRecordModel otherModel = ActiveRecordModel.GetModel(hasManyModel.HasManyAtt.MapType);
PrimaryKeyModel keyModel = ARCommonUtils.ObtainPKProperty(otherModel);
if (otherModel == null || keyModel == null)
{
continue; // Impossible to save
}
CreateMappedInstances(instance, hasManyModel.Property, keyModel, otherModel, context);
}
}
protected override void AfterBinding(object instance, String paramPrefix, DataBindContext context)
{
// Defensive programming
if (instance == null)
{
return;
}
ActiveRecordModel model = ActiveRecordModel.GetModel(instance.GetType());
if (model == null)
{
return;
}
SaveManyMappings(instance, model, context);
}
protected virtual void AfterBinding(object instance, String paramPrefix, DataBindContext context)
{
}
protected object InternalRecursiveBindObjectInstance(object instance, String paramPrefix,
int nestedLevelsLeft, DataBindContext ctx)
{
if (--nestedLevelsLeft < 0)
{
return(instance);
}
if (ShouldIgnoreElement(ctx.ParamList, paramPrefix))
{
return(instance);
}
BeforeBinding(instance, paramPrefix, ctx);
PropertyInfo[] props = instance.GetType().GetProperties(PropertiesBindingFlags);
foreach (PropertyInfo prop in props)
{
if (ShouldIgnoreProperty(prop, ctx))
{
continue;
}
Type propType = prop.PropertyType;
String paramName = BuildParamName(paramPrefix, prop.Name);
try
{
if (!IsSimpleProperty(propType))
{
if (nestedLevelsLeft > 0)
{
// if the property is an object, we look if it is already instanciated
object value = prop.GetValue(instance, null);
// if it's not there, we create it
// Or if is an array
if (value == null || propType.IsArray)
{
value = InternalBindObject(propType, paramName, nestedLevelsLeft, ctx);
prop.SetValue(instance, value, null);
}
else // if the object already instanciated, then we use it
{
InternalRecursiveBindObjectInstance(value, paramName, nestedLevelsLeft, ctx);
}
}
}
else
{
bool conversionSucceeded;
String[] values = ctx.ParamList.GetValues(paramName);
object value = ConvertUtils.Convert(prop.PropertyType, values, paramName, ctx.Files, ctx.ParamList, out conversionSucceeded);
// we don't want to set the value if the form param was missing
// to avoid loosing existing values in the object instance
if (conversionSucceeded && value != null)
{
prop.SetValue(instance, value, null);
}
}
}
catch (Exception ex)
{
if (ctx.Errors != null)
{
ctx.Errors.Add(new DataBindError(ctx.Root,
(paramPrefix == "") ? paramName : prop.Name, ex));
}
else
{
throw;
}
}
}
AfterBinding(instance, paramPrefix, ctx);
return(instance);
}
protected object InternalBindObject(Type instanceType, String paramPrefix, int nestedLevelsLeft, DataBindContext ctx)
{
if (ShouldIgnoreType(instanceType) ||
ShouldIgnoreElement(ctx.ParamList, paramPrefix))
{
return(null);
}
if (instanceType.IsArray)
{
return(InternalBindObjectArray(instanceType, paramPrefix, nestedLevelsLeft, ctx));
}
else
{
object instance = CreateInstance(instanceType, paramPrefix, ctx.ParamList);
return(InternalRecursiveBindObjectInstance(instance, paramPrefix, nestedLevelsLeft, ctx));
}
}
// Only here so we can support 2 types of loop in the BindObjectArrayInstance
// without duplicating too much code
private void AddArrayElement(ArrayList bindArray, Type instanceType, object arrayPrefix, String paramPrefix, int nestedLevelsLeft, DataBindContext ctx)
{
String arrayParamPrefix = paramPrefix + "[" + arrayPrefix + "]";
if (!ShouldIgnoreElement(ctx.ParamList, arrayParamPrefix))
{
object instance = CreateInstance(
instanceType.GetElementType(), arrayParamPrefix, ctx.ParamList);
InternalRecursiveBindObjectInstance(instance, arrayParamPrefix, nestedLevelsLeft, ctx);
bindArray.Add(instance);
}
}
private object[] InternalBindObjectArray(Type instanceType, String paramPrefix, int nestedLevelsLeft, DataBindContext ctx)
{
ArrayList bindArray = new ArrayList();
// check if a count attribute is present, if so we assume the
// params are in order i.e.
// param[0], param[1], ... param[count-1]
// otherwise we have to find all uniques id for that identifier
// which is probably slower but is more flexible
String countBeforeCast = ctx.ParamList[paramPrefix + CountAttribute];
if (countBeforeCast != null)
{
Int32 count = System.Convert.ToInt32(countBeforeCast);
// if count > paramList.Count that means that there is a problem
// in the count variable
if (count > ctx.ParamList.Count)
{
count = ctx.ParamList.Count;
}
for (int prefix = 0; prefix < count; prefix++)
{
AddArrayElement(bindArray, instanceType, prefix, paramPrefix, nestedLevelsLeft, ctx);
}
}
else
{
String[] uniquePrefixes = Grep(ctx.ParamList.AllKeys, "^" + Regex.Escape(paramPrefix) + @"\[(.*?)]", 1);
foreach (String prefix in uniquePrefixes)
{
AddArrayElement(bindArray, instanceType, prefix, paramPrefix, nestedLevelsLeft, ctx);
}
}
return((object[])bindArray.ToArray(instanceType.GetElementType()));
}
private void CreateMappedInstances(object instance, PropertyInfo prop,
PrimaryKeyModel keyModel, ActiveRecordModel otherModel, DataBindContext context)
{
object container = InitializeRelationPropertyIfNull(instance, prop);
// TODO: Support any kind of key
String paramName = String.Format("{0}.{1}", prop.Name, keyModel.Property.Name);
String[] values = context.ParamList.GetValues(paramName);
int[] ids = (int[])ConvertUtils.Convert(typeof(int[]), values, paramName, null, context.ParamList);
if (ids != null)
{
foreach (int id in ids)
{
object item = Activator.CreateInstance(otherModel.Type);
keyModel.Property.SetValue(item, id, EmptyArg);
AddToContainer(container, item);
}
}
}
private void Awake()
{
_context = GetComponent <DataBindContext>();
_items = new ObservableList("Items");
_context["Items"] = _items;
}
