/// <summary>
/// Converts an <see cref="ApiParameterDescription"/> to one or more <see cref="SimpleApiParameterDescriptor"/>s.
/// In simple cases, such as a string or primitive type parameter, a simple mapping will occur. When a parameter
/// represents a complex type, one parameter will be returned for each public property on the type.
/// </summary>
public static IEnumerable <SimpleApiParameterDescriptor> Flatten(ApiDescription apiDescription, ApiParameterDescription parameterDescription, IDocumentationProviderEx documentationProvider)
{
var descriptor = parameterDescription.ParameterDescriptor;
if (descriptor == null)
{
return(new[]
{
new SimpleApiParameterDescriptor(parameterDescription.Name, typeof(string), apiDescription.RelativePath, parameterDescription.Source, parameterDescription.Documentation)
});
}
bool isMany;
var parameterType = Unwrap(descriptor.ParameterType, out isMany);
if (IsSimpleType(parameterType))
{
return(new[] { new SimpleApiParameterDescriptor(descriptor, apiDescription.RelativePath, isMany, parameterDescription.Documentation) });
}
if (UsesCustomModelBinder(descriptor))
{
var callingConvention = SimpleApiParameterDescriptor.GetCallingConvention(apiDescription.RelativePath, descriptor.ParameterName);
return(new[]
{
new SimpleApiParameterDescriptor(descriptor.ParameterName, parameterType, callingConvention, descriptor.DefaultValue, descriptor.IsOptional, isMany, parameterDescription.Documentation)
});
}
return(EnumerateProperties(apiDescription, parameterType, documentationProvider));
}
public virtual XElement BuildInput(string name, SimpleApiParameterDescriptor p)
{
if (p.ParameterType.IsEnum)
{
return(BuildSelect(name, p));
}
var input = new XElement("input",
new XAttribute("name", name),
new XAttribute("type", GetHtmlInputType(p)));
if (p.ParameterType == typeof(bool))
{
input.Add(new XAttribute("value", "true"));
var check = Convert.ToBoolean(p.DefaultValue);
if (check)
{
input.Add(new XAttribute("checked", "checked"));
}
}
else
{
input.Add(new XAttribute("value", p.DefaultValue ?? ""));
}
return(input);
}
/// <summary>
/// Determine which type attribute value to use for a <see cref="SimpleApiParameterDescriptor"/>.
/// Currently this method only returns <c>"text"</c> though support for
/// other types such as <c>"checkbox"</c>, <c>"radio"</c>, <c>"select"</c> or <c>"textarea"</c>
/// may be added later.
/// </summary>
public virtual string GetHtmlInputType(SimpleApiParameterDescriptor apiParam)
{
var type = Nullable.GetUnderlyingType(apiParam.ParameterType) ?? apiParam.ParameterType;
if (type == typeof(bool))
{
return("checkbox");
}
return("text");
}
public virtual XElement BuildSelect(string name, SimpleApiParameterDescriptor p)
{
var input = new XElement("select", new XAttribute("name", name));
if (p.IsMany)
{
input.Add(new XElement("multiple", "true"));
}
foreach (var value in Enum.GetValues(p.ParameterType).Cast <Enum>())
{
var option = new XElement("option", new XAttribute("value", value), new XText(value.ToString()));
if (value.Equals(p.DefaultValue))
{
option.Add(new XAttribute("selected", "selected"));
}
input.Add(option);
}
return(input);
}
