public ContentFieldDefinition(string fieldName, Type modelType, ContentFieldConfiguration config = null)
{
FieldName = fieldName?.Trim() ?? "";
ModelType = modelType;
Config = config;
Validate();
}
private void Validate()
{
if (string.IsNullOrWhiteSpace(FieldName))
{
throw new InvalidOperationException($"ProtoCMS: content field name is required.");
}
if (ModelType == null)
{
throw new InvalidOperationException($"ProtoCMS: content field model type is required.");
}
if (!ContentType.VALID_FIELD_NAME_REGEX.IsMatch(FieldName))
{
throw new InvalidOperationException(
$"ProtoCMS: content field name must match regex '{ContentType.VALID_FIELD_NAME_PATTERN}'.");
}
if (!typeof(ContentField).IsAssignableFrom(ModelType))
{
throw new InvalidOperationException(
$"ProtoCMS: content field model type must inherit from '{typeof(ContentField).FullName}'.");
}
if (ModelType.GetConstructor(Type.EmptyTypes) == null)
{
throw new InvalidOperationException(
$"ProtoCMS: content field model type must have a default constructor.");
}
var mdl = Activator.CreateInstance(ModelType).DirectCastTo <ContentField>();
if (mdl.__FieldSpec.ConfigType.GetConstructor(Type.EmptyTypes) == null)
{
throw new InvalidOperationException(
$"ProtoCMS: content field config type must have a default constructor.");
}
if (Config == null)
{
Config = Activator.CreateInstance(mdl.__FieldSpec.ConfigType)
.DirectCastTo <ContentFieldConfiguration>();
}
if (!mdl.__FieldSpec.ConfigType.IsInstanceOfType(Config))
{
throw new InvalidOperationException(
$"ProtoCMS: content field config type for model '{ModelType.FullName}' must be an instance of " +
$"'{mdl.__FieldSpec.ConfigType.FullName}'.");
}
}