private static MvcHtmlString DoFieldsInfoAwareEditor <TModel, TValue>(
HtmlHelper <TModel> html,
Expression <Func <TModel, TValue> > expression,
ModelFieldsAccessibility fieldsInfo,
Func <MvcHtmlString> displayDelegate
)
{
string property = html.PropertyName(expression);
if (!fieldsInfo.IsVisible(property))
{
return(MvcHtmlString.Empty);
}
ViewDataDictionary viewData = html.ViewDataContainer.ViewData;
List <string> dataKeysToRemove = new List <string>();
Dictionary <string, object> dataPrevValues = new Dictionary <string, object>();
// "Hide" current fields info from new editor
viewData.PrepareChangeReversal(FormConstants.FieldsInfoKey, dataKeysToRemove, dataPrevValues);
viewData.Remove(FormConstants.FieldsInfoKey);
// Augment new additionalViewData with information from fieldsInfo
if (fieldsInfo.IsComplex(property))
{
viewData[FormConstants.FieldsInfoKey] = fieldsInfo.GetSubFieldInfo(property);
}
else if (!fieldsInfo.CanBeChangedByUser(property))
{
viewData.PrepareChangeReversal(FormConstants.DisabledKey, dataKeysToRemove, dataPrevValues);
viewData[FormConstants.DisabledKey] = true;
}
// Render the editor
MvcHtmlString result = displayDelegate();
// Reverse the changes to ViewData
dataKeysToRemove.ForEach(s => viewData.Remove(s));
dataPrevValues.ForEach(pair => viewData[pair.Key] = pair.Value);
return(result);
}
public static ModelFieldsAccessibility GetWhatCanBeEditedCouncil(Election election)
{
if (!CanEdit(election))
{
throw new Exception(
$"Cannot call {nameof(GetWhatCanBeEditedCouncil)} when the election isn't editable"
);
}
bool isCouncil = election.Type == ElectionType.StudentCouncil;
// Mark everything editable by default
ModelFieldsAccessibility fieldsInfo = isCouncil
? CouncilElectionForm.DefaultCouncilFieldsInfo(ModelFieldsAccessibility.Kind.Editable)
: ElectionForm.DefaultFieldsInfo(ModelFieldsAccessibility.Kind.Editable);
if (!ShowResultsAdmin(election))
{
fieldsInfo.MarkNotShown(nameof(ElectionForm.ResultsText));
}
if (election.State == ElectionState.Disabled)
{
// Everything (expect ResultsText) can be edited
return(fieldsInfo);
}
if (election.State == ElectionState.PreNominations || IsAfter(election, ElectionState.PreNominations))
{
if (isCouncil)
{
fieldsInfo.MarkNotEditable(nameof(CouncilElectionForm.Roles));
}
fieldsInfo
.GetSubFieldInfo(nameof(ElectionForm.Nominations))
.MarkNotEditable(nameof(ElectionPhaseForm.BeginsAt));
if (election.State == ElectionState.PreNominations)
{
return(fieldsInfo);
}
}
if (election.State == ElectionState.Nominations || IsAfter(election, ElectionState.Nominations))
{
fieldsInfo.MarkNotShown(nameof(ElectionForm.NominationsStartedEmail));
// Eligibility is not refreshed automatically after nominations have started
fieldsInfo.MarkNotShown(nameof(ElectionForm.DisableAutomaticEligibility));
if (election.State == ElectionState.Nominations)
{
return(fieldsInfo);
}
}
if (election.State == ElectionState.PreVoting || IsAfter(election, ElectionState.PreVoting))
{
fieldsInfo.MarkNotShown(nameof(ElectionForm.Nominations));
if (isCouncil)
{
fieldsInfo.MarkNotShown(nameof(CouncilElectionForm.NominationsAlmostOverEmail));
}
fieldsInfo.MarkNotShown(nameof(ElectionForm.PostNominationsEmail));
if (election.State == ElectionState.PreVoting)
{
return(fieldsInfo);
}
}
if (election.State == ElectionState.Voting || IsAfter(election, ElectionState.Voting))
{
if (isCouncil)
{
fieldsInfo.MarkNotShown(nameof(CouncilElectionForm.VotingStartedEmail));
}
fieldsInfo
.GetSubFieldInfo(nameof(ElectionForm.Voting))
.MarkNotEditable(nameof(ElectionPhaseForm.BeginsAt));
if (election.State == ElectionState.Voting)
{
return(fieldsInfo);
}
}
if (election.State == ElectionState.Closed || IsAfter(election, ElectionState.Closed))
{
if (isCouncil)
{
fieldsInfo.MarkNotShown(nameof(CouncilElectionForm.Roles));
}
fieldsInfo.MarkNotShown(nameof(ElectionForm.Voting));
if (isCouncil)
{
fieldsInfo.MarkNotShown(nameof(CouncilElectionForm.VotingAlmostOverEmail));
}
fieldsInfo.MarkNotShown(nameof(ElectionForm.PostVotingEmail));
if (election.State == ElectionState.Closed)
{
return(fieldsInfo);
}
}
return(fieldsInfo);
}