services/validator.js

/**
 * Validator
 *
 * @module      :: Validator
 * @description :: Contains helper for validation.
 */
var check = require('validator').check;

module.exports = {
    /**
     * Check an entire object using Validator module. DON'T WORKS.
     * @param params
     * @param callback
     * @param env
     * @returns {{messages: Array, status: boolean}}
     *
     * @example validator.check([{
                value: req.params.email,
                check: [{
                        function: 'isNumeric',
                        message: 'This is not a number',
                        args: []
                    }, {
                        function: 'contains',
                        message: 'The value doesn\'t have a 0 in it',
                        args: ['0']
                    }
                ]
            }], function(result){
                res.json({message: 'Result validation', data: {result: result}, status: result.status});
            });
     */
    check: function(params, callback, env){
        // Define default environnment.
        if(!env){
            env = 'production';
        }

        // Errors.
        var errors = {
            messages: [],
            status: true// No error.
        };

        // Check params object content.
        if((!params || params.length === 0) && env === 'development'){
            errors.messages.push({
                type: 'Debug',
                file: 'validator.js',
                method: 'check',
                message: 'The first arg must be an array which must contains at least one object.'
            });
            errors.status = false;
        }

        if(errors.status){
            // Check each rule.
            for(var i = 0; i < params.length; i++){
                try{
                    var value = params[i].value;
                    var rule = params[i].check;
                    for(var j = 0; j < rule.length; j++){
                        try{
                            console.log('VAL: '+value);
                            console.log('MESSAGE: '+rule[j].message);
                            console.log('FUNCTION: '+rule[j]['function']);
                            // I have a problem here because this line don't works.
                            check(value, rule[j].message).rule[j]['function']();
                        }catch(e){
                            errors.messages.push({
                                type: 'Error',
                                message: (e.message ? e.message : e)// Default is e.message, if exists, else the entire message.
                            });
                        }
                    }
                }catch(e){
                    errors.messages.push({
                        type: 'Debug',
                        message: (e.message ? e.message : e)// Default is e.message, if exists, else the entire message.
                    });
                }
            }
        }

        // Do callback or return results.
        if(callback){
            callback(errors);
        }else{
            return errors;
        }

    }
};