/// <summary>
/// Performs field logic that cannot be represented with attributes for an observation.
/// </summary>
/// <param name="validationDictionary">A dictionary that will contain the resulting errors</param>
/// <param name="observation">The observation to validate</param>
/// <returns><c>true</c> for success, <c>false</c> for failure</returns>
/// <remarks>
/// This function should be used in conjunction with the built-in data annotations to validate
/// simple conditions such as required.
/// </remarks>
public bool Validate(IValidationDictionary validationDictionary, Domain.Observation observation)
{
var type = _observationTypeRepository.GetById(observation.ObservationTypeId);
//Email
if (observation.EmailYesOrNo)
{
if (string.IsNullOrWhiteSpace(observation.Email))
{
//Email validation is handled by the [EmailAddress] attribute on the domain
validationDictionary.AddError("Email", Domain.Observation.Required);
}
}
else
{
validationDictionary.Remove("Email");
observation.Email = null;
}
//Ensure type has a value first, may be a 0 / null type.
if (type == null)
{
validationDictionary.AddError("ObservationTypeId", Domain.Observation.Required);
}
else
{
//Remove the built-in validation for observation category and other category
//since we will override the rules to be more specific based on conditional
//logic here.
validationDictionary.Remove("ObservationCategoryId");
validationDictionary.Remove("OtherCategory");
if (type.Name == Domain.ObservationType.UnsafeCondition)
{
//A category is required if the observation type is "Unsafe Condition"
if (!observation.ObservationCategoryId.HasValue)
{
validationDictionary.AddError("ObservationCategoryId", Domain.Observation.Required);
}
else
{
var category = _observationCategoryRepository.GetById(observation.ObservationCategoryId.Value);
//If other specified, we need a reason (OtherCategory)
if (category.Reference == Domain.ObservationCategory.Other &&
string.IsNullOrWhiteSpace(observation.OtherCategory))
{
validationDictionary.AddError("OtherCategory", Domain.Observation.Required);
}
else
{
observation.OtherCategory = null;
}
}
}
else
{
//Remove category Id and other category if "Good Practice" is specified.
observation.ObservationCategoryId = null;
observation.OtherCategory = null;
}
}
//Return whether the validation dictionary is valid. This is so that
//we can extend the result given initially, for required etc.
return(validationDictionary.IsValid);
}