public string ConstructValidations(ParameterRb parameter)
{
if ((bool)Settings.Instance.CustomSettings["ClientSideValidation"])
{
var builder = new IndentedStringBuilder(" ");
builder.AppendLine("").Indent();
if (parameter.IsRequired && !parameter.IsConstant)
{
builder.AppendLine("fail ArgumentError, '{0} is nil' if {0}.nil?", parameter.Name);
}
if (parameter.Constraints != null && parameter.Constraints.Count != 0)
{
builder.AppendLine(ConstructConstraintsString(parameter));
}
return(builder.ToString());
}
return(string.Empty);
}
/// <summary>
/// Builds the constraints checks for the given <paramref name="parameter"/>
/// </summary>
/// <param name="parameter">Parameter for which constraint checks must be built.</param>
/// <returns>Constraints checks expressions</returns>
private string ConstructConstraintsString(ParameterRb parameter)
{
var builder = new IndentedStringBuilder(" ");
builder.AppendLine("");
foreach (var constraint in parameter.Constraints.Keys)
{
string constraintCheck;
string constraintValue = parameter.Constraints[constraint];
switch (constraint)
{
case Constraint.ExclusiveMaximum:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name} >= {constraintValue}";
break;
case Constraint.ExclusiveMinimum:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name} <= {constraintValue}";
break;
case Constraint.InclusiveMaximum:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name} > {constraintValue}";
break;
case Constraint.InclusiveMinimum:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name} < {constraintValue}";
break;
case Constraint.MaxItems:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name}.length > {constraintValue}";
break;
case Constraint.MaxLength:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name}.length > {constraintValue}";
break;
case Constraint.MinItems:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name}.length < {constraintValue}";
break;
case Constraint.MinLength:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name}.length < {constraintValue}";
break;
case Constraint.MultipleOf:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name} % {constraintValue} != 0";
break;
case Constraint.Pattern:
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name}.match(Regexp.new('^{constraintValue}$')).nil?";
break;
case Constraint.UniqueItems:
if ("true".EqualsIgnoreCase(constraintValue))
{
constraintCheck = $"!{parameter.Name}.nil? && {parameter.Name}.length != {parameter.Name}.uniq.length";
}
else
{
constraintCheck = null;
}
break;
default:
throw new NotSupportedException("Constraint '" + constraint + "' is not supported.");
}
if (constraintCheck != null)
{
var escapedValueReference = parameter.Name.Value.Replace("'", "\\'");
if (constraint != Constraint.UniqueItems)
{
builder.AppendLine("fail ArgumentError, \"'{0}' should satisfy the constraint - '{1}': '{2}'\" if {3} ", escapedValueReference, constraint, constraintValue, constraintCheck);
}
else
{
builder.AppendLine("fail ArgumentError, \"'{0}' should satisfy the constraint - '{1}'\" if {3} ", escapedValueReference, constraint, constraintValue, constraintCheck);
}
}
}
return(builder.ToString());
}