public virtual async Task <MoodleGradebookColumn> CreateColumnAsync(string title, float maximumScore, string tag = null)
{
// Title must not be null
if (title == null)
{
throw new ArgumentNullException(nameof(title));
}
// Score must be positive
if (maximumScore < 0)
{
throw new ArgumentOutOfRangeException(nameof(maximumScore), "The maximum score must not be negative.");
}
// Create line item
var lineItem = new MoodleLtiLineItem
{
Label = title,
ResourceLinkId = _resourceLinkId,
ScoreMaximum = maximumScore,
Tag = tag
};
int id = await _ltiApi.CreateLineItemAsync(lineItem);
// Retrieve and return created line item
var createdLineItem = await _ltiApi.GetLineItemAsync(id);
return(new MoodleGradebookColumn(createdLineItem));
}
public Task UpdateLineItemAsync(MoodleLtiLineItem lineItem)
{
if (!_lineItems.ContainsKey(lineItem.Id))
{
throw new MoodleLtiException(nameof(UpdateLineItemAsync));
}
var lid = _lineItems[lineItem.Id];
lid.LineItem = lineItem.Clone();
return(Task.CompletedTask);
}
public async Task UpdateLineItemAsync(MoodleLtiLineItem lineItem)
{
// Build URL
string url = $"{_serviceUrl}/lineitems/{lineItem.Id}/lineitem?{_queryStringPrefix}";
// Serialize line item
lineItem.StringId = url;
string serializedLineItem = JsonConvert.SerializeObject(lineItem, new JsonSerializerSettings {
NullValueHandling = NullValueHandling.Ignore
});
await DoPutRequestAsync(url, serializedLineItem, "application/vnd.ims.lis.v2.lineitem+json", new[] { HttpStatusCode.OK });
}
public async Task <int> CreateLineItemAsync(MoodleLtiLineItem lineItem)
{
// Build URL
string url = $"{_serviceUrl}/lineitems?{_queryStringPrefix}";
// Serialize line item
string serializedLineItem = JsonConvert.SerializeObject(lineItem, new JsonSerializerSettings {
NullValueHandling = NullValueHandling.Ignore
});
(string responseBody, HttpStatusCode _) = await DoPostRequestAsync(url, serializedLineItem, "application/vnd.ims.lis.v2.lineitem+json", new[] { HttpStatusCode.Created });
// Try to deserialize result
MoodleLtiLineItem resultLineItem = JsonConvert.DeserializeObject <MoodleLtiLineItem>(responseBody);
// Extract ID
return(GetNumericLineItemId(resultLineItem.StringId));
}
public Task <int> CreateLineItemAsync(MoodleLtiLineItem lineItem)
{
LineItemData lineItemData = new LineItemData
{
LineItem = new MoodleLtiLineItem
{
Id = _nextLineItemId++,
Label = lineItem.Label,
LtiLinkId = lineItem.LtiLinkId,
ResourceId = lineItem.ResourceId,
ResourceLinkId = lineItem.ResourceLinkId,
ScoreMaximum = lineItem.ScoreMaximum,
Tag = lineItem.Tag
},
Scores = new Dictionary <string, MoodleLtiScore>()
};
_lineItems.Add(lineItemData.LineItem.Id, lineItemData);
return(Task.FromResult(lineItemData.LineItem.Id));
}