public StringSubstitutor(IHasLookup repo = null)
{
if (repo != null)
{
ReferenceDataRepository = repo;
}
}
/// <summary>
/// Given a expression like ${var:xxxx}, sees if the data structure named xxxx is in the reference data repository
/// </summary>
/// <param name="reference">The name of the reference data</param>
/// <param name="repo">The repository to search through</param>
/// <returns>The object that is in the repo</returns>
public object Resolve(string reference, IHasLookup repo)
{
// The reference can be ${var:USStates}
Regex regex = new Regex(@"^\${var:(?<varname>\w+)}$");
var match = regex.Match(reference);
if (match.Success)
{
string varname = match.Groups["varname"].Value;
// Get the collection from the reference data repo
return(repo?.Get(varname));
}
return(null);
}
protected override void InitializeData(FormTemplateFieldDefinition fieldDef, object data = null, IHasLookup referenceDataRepo = null)
{
this.GroupName = this.GetProp <string>("groupname") ?? IdGenerators.FieldId();
this.EndingFieldName = this.GetProp <string>("end");
this.FieldInstanceSuffix = this.GetProp <string>("suffix") ?? "${index}";
this.ContinueLoopValue = this.GetProp("continuevalue") ?? true;
base.InitializeData(fieldDef, data, referenceDataRepo);
}
protected override void InitializeData(FormTemplateFieldDefinition fieldDef, object data = null, IHasLookup referenceDataRepo = null)
{
base.InitializeData(fieldDef, data, referenceDataRepo);
if (data != null)
{
return;
}
if (fieldDef.Items != null && fieldDef.Items.Count > 0)
{
this.CopyCollection(this.Items, fieldDef.Items);
return;
}
if (string.IsNullOrEmpty(fieldDef.Reference))
{
return;
}
// Get the collection from the reference data repo
IReferenceDataResolver referenceDataResolver = new ReferenceDataResolver();
object collection = referenceDataResolver.Resolve(fieldDef.Reference, referenceDataRepo);
this.CopyCollection(this.Items, collection);
}
