public static IWorkflowStepItem ToModel(this DbWorkflowStepItem item, IJsonHelper jsonHelper)
{
switch (item.ItemType)
{
case WorkflowStepItemType.SimpleQuestion:
return(GetSimpleQuestion(item, jsonHelper));
case WorkflowStepItemType.TextScenario:
return(GetTextScenario(item, jsonHelper));
default:
throw new Exception(
string.Format("Workflow step item {0} does not have a valid type. Type: {1}",
item.Code, item.ItemType));
}
}
private static TextScenario GetTextScenario(DbWorkflowStepItem item, IJsonHelper jsonHelper)
{
Result <IEnumerable <Question> > result = jsonHelper.Deserialize <IEnumerable <Question> > (item.Content);
if (result.IsFailure)
{
throw new Exception(string.Format("Could not deserialize TextScenario workflow step item content to IEnumerable<Question>. Code: {0}", item.Code));
}
return(new TextScenario {
Id = item.Id,
Code = item.Code,
CultureCode = item.CultureCode,
Questions = result.Value,
LastModified = item.LastModified,
DateCreated = item.DateCreated
});
}
private static SimpleQuestion GetSimpleQuestion(DbWorkflowStepItem item, IJsonHelper jsonHelper)
{
Result <Question> result = jsonHelper.Deserialize <Question> (item.Content);
if (result.IsFailure)
{
throw new Exception(string.Format("Could not deserialize SimpleQuestion workflow step item content to Question. Code: {0}", item.Code));
}
return(new SimpleQuestion {
Id = item.Id,
Code = item.Code,
CultureCode = item.CultureCode,
Question = result.Value,
LastModified = item.LastModified,
DateCreated = item.DateCreated
});
}
private Maybe <IWorkflowStepItem> MaybeWorkflowStepItem(DbWorkflowStepItem workflowStepItem)
{
return(workflowStepItem != null
? new Maybe <IWorkflowStepItem>(workflowStepItem.ToModel(jsonHelper))
: Maybe <IWorkflowStepItem> .Fail);
}
