/// <summary>
///Dynamic value lists override static ones:
/// * If a dynamic value list is null then hard coded ValueList is enforced if it is specified;
/// * If a dynamic list is non-null then it is enforced if it is not blank, otherwise nothing is checked;
/// Therefore: you may return an empty non-null dynamic list to prevent application of ValueList check for specific field/target
/// </summary>
protected virtual Exception CheckValueList(string targetName, Schema.FieldDef fdef, FieldAttribute atr, object value)
{
//try to obtain dynamic value list
var dynValueList = GetDynamicFieldValueList(fdef, targetName, null);
if (dynValueList != null)//check dynamic list is supplied
{
if (dynValueList.Count == 0)
{
return(null); //Nothing to check against; this is used to return empty list to override ValueList list
}
var fv = value.ToString();
if (!dynValueList.ContainsKey(fv))
{
return(new FieldValidationException(Schema.DisplayName, fdef.Name, StringConsts.CRUD_FIELD_VALUE_IS_NOT_IN_LIST_ERROR.Args(fv.TakeFirstChars(9, ".."))));
}
}
else if (atr.HasValueList)//check ValueList dictionary
{
var parsed = atr.ParseValueList();
var fv = value.ToString();
if (!parsed.ContainsKey(fv))
{
return(new FieldValidationException(Schema.DisplayName, fdef.Name, StringConsts.CRUD_FIELD_VALUE_IS_NOT_IN_LIST_ERROR.Args(fv.TakeFirstChars(9, ".."))));
}
}
return(null);
}
protected virtual Exception CheckValueList(string targetName, Schema.FieldDef fdef, FieldAttribute atr, object value)
{
if (atr.HasValueList)//check dictionary
{
var parsed = atr.ParseValueList();
if (isSimpleKeyStringMap(parsed))
{
var fv = value.ToString();
if (!parsed.ContainsKey(fv))
{
return(new FieldValidationException(Schema.DisplayName, fdef.Name, StringConsts.CRUD_FIELD_VALUE_IS_NOT_IN_LIST_ERROR.Args(fv.TakeFirstChars(16, ".."))));
}
}
}
//check dynamic value list
var dynValueList = GetDynamicFieldValueList(fdef, targetName, null);
if (dynValueList != null)//check dictionary
{
var fv = value.ToString();
if (!dynValueList.ContainsKey(fv))
{
return(new FieldValidationException(Schema.DisplayName, fdef.Name, StringConsts.CRUD_FIELD_VALUE_IS_NOT_IN_LIST_ERROR.Args(fv.TakeFirstChars(16, ".."))));
}
}
return(null);
}
private static void inheritAttribute(FieldAttribute parent, FieldAttribute self, string callSite)
{
//merge attributes from parent into self prop by prop
foreach(var pi in ALL_PROPS)
{
if (pi.Name==nameof(MetadataContent))
{
if (self.MetadataContent.IsNullOrWhiteSpace())
self.MetadataContent = parent.MetadataContent;
else if (parent.MetadataContent.IsNotNullOrWhiteSpace())
{ //merge
var conf1 = ParseMetadataContent(parent.MetadataContent, callSite);
var conf2 = ParseMetadataContent(self.MetadataContent, callSite);
var merged = new LaconicConfiguration();
merged.CreateFromMerge(conf1, conf2);
self.MetadataContent = merged.SaveToString();
}
continue;
}//metadata merge
if (pi.Name==nameof(ValueList))
{
if (!self.HasValueList)
self.ValueList = parent.ValueList;
else if (parent.HasValueList)
{ //merge
var vl1 = parent.ParseValueList(true);
var vl2 = self.ParseValueList(true);
vl2.Append(vl1);//merge missing in self from parent
//remove all that start with REMOVE
// to remove a key include an override with: `keyABC: #del#` (item keyed on `keyABC` will be removed)
const string DELETE = "#del#";
vl2.Where(kvp => kvp.Value.AsString().EqualsOrdIgnoreCase(DELETE))
.ToArray()
.ForEach( kvp => vl2.Remove(kvp.Key) );
self.ValueList = BuildValueListString(vl2);//reconstitute jsonmap back into string
}
continue;
}
if (self.PropertyWasAssigned(pi.Name)) continue;//was overridden
pi.SetValue(self, pi.GetValue(parent));//set value
}
}