module.exports = function(Self) {
    require('../methods/creditInsurance/filter.js')(Self);

    Self.validateCredit = function(credit) {
        return credit >= 0;
    };

    Self.validateBinded('credit', Self.validateCredit, {
        message: 'The credit must be an integer greater than or equal to zero',
        allowNull: false, // FIXME: Ignored by loopback when it's false
        allowBlank: false
    });

    Self.validateGrade = function(grade) {
        return typeof grade === 'undefined' || grade >= 0;
    };

    Self.validateBinded('grade', Self.validateGrade, {
        message: 'The grade must be an integer greater than or equal to zero',
        allowNull: true
    });
};