/// <summary>
/// Applies all fields known extension fields for the interface to the given object graph type.
/// </summary>
/// <param name="interfaceType">The interface type to search for associated fields.</param>
/// <param name="objectGraphType">The object graph type to recieve new fields.</param>
private void ApplyAllFields(IInterfaceGraphType interfaceType, IObjectGraphType objectGraphType)
{
foreach (var field in _fieldsByInterface[interfaceType])
{
objectGraphType.Extend(field);
}
}
/// <summary>
/// Iterates the given <see cref="ControllerActionGraphFieldTemplate" /> and adds
/// all found types to the type system for this <see cref="ISchema" />. Generates
/// a field reference on the provided parent with a resolver pointing to the provided graph action.
/// </summary>
/// <param name="parentField">The parent which will own the generated action field.</param>
/// <param name="action">The action.</param>
private void AddActionAsField(IObjectGraphType parentField, IGraphTypeFieldTemplate action)
{
// apend the action as a field on the parent
var maker = new GraphFieldMaker(this.Schema);
var fieldResult = maker.CreateField(action);
if (fieldResult != null)
{
parentField.Extend(fieldResult.Field);
this.EnsureDependents(fieldResult);
}
}
/// <summary>
/// Iterates the given <see cref="ControllerActionGraphFieldTemplate" /> and adds
/// all found types to the type system for this <see cref="ISchema" />. Generates
/// a field reference on the provided parent with a resolver pointing to the provided graph action.
/// </summary>
/// <param name="parentType">The parent which will own the generated action field.</param>
/// <param name="action">The action.</param>
private void AddActionAsField(IObjectGraphType parentType, IGraphTypeFieldTemplate action)
{
// apend the action as a field on the parent
var maker = GraphQLProviders.GraphTypeMakerProvider.CreateFieldMaker(this.Schema);
var fieldResult = maker.CreateField(action);
if (fieldResult != null)
{
if (parentType.Fields.ContainsKey(fieldResult.Field.Name))
{
throw new GraphTypeDeclarationException(
$"The '{parentType.Kind}' graph type '{parentType.Name}' already contains a field named '{fieldResult.Field.Name}'. " +
$"The action method '{action.InternalFullName}' cannot be added to the graph type with the same name.");
}
parentType.Extend(fieldResult.Field);
this.EnsureDependents(fieldResult);
}
}
/// <summary>
/// Performs an out-of-band append of a new graph field to a parent. Accounts for type updates in this schema ONLY.
/// </summary>
/// <param name="parentType">the parent type to add the new field to.</param>
/// <param name="fieldName">Name of the field.</param>
/// <param name="path">The path segment to represent the new field.</param>
/// <param name="definition">The definition item from which graph attributes should be used, if any. Attributes will be set to an empty string if not supplied.</param>
/// <returns>The type associated with the field added to the parent type.</returns>
private IObjectGraphType CreateVirtualFieldOnParent(
IObjectGraphType parentType,
string fieldName,
GraphFieldPath path,
IGraphItemTemplate definition = null)
{
var childField = new VirtualGraphField(
fieldName,
path,
this.MakeSafeTypeNameFromRoutePath(path))
{
IsDepreciated = false,
DepreciationReason = string.Empty,
Description = definition?.Description ?? string.Empty,
};
parentType.Extend(childField);
this.Schema.KnownTypes.EnsureGraphType(childField.AssociatedGraphType);
this.EnsureDependents(childField);
return(childField.AssociatedGraphType);
}
