该验证可以帮助你。下面是一个示例。
var min = [0, 'The value of path `{PATH}` ({VALUE}) is beneath the limit ({MIN}).'];var max = [1, 'The value of path `{PATH}` ({VALUE}) exceeds the limit ({MAX}).'];var numberschema = new mongoose.Schema({ n: {type: Number, min: min, max: max} });var numberschema = mongoose.model('number', numberschema, 'number');var insertdocuments = function(db) { var a = new numberschema({ n: 5 }); console.log(a); a.validate(function(err) { if (err) console.log(err); }); a.save(function (err, ack) { if (err) { console.log('Mongoose save error : ' + err); } else { console.log('Mongoose save successfully...'); } }); };尝试插入时
5，出现以下错误
{ [ValidationError: Validation failed] message: 'Validation failed', name: 'ValidationError', errors: { n: { [ValidatorError: The value of path `n` (5) exceeds the limit (1).] message: 'The value of path `n` (5) exceeds the limit (1).', name: 'ValidatorError', path: 'n', type: 'max', value: 5 } } }Mongoose save error : ValidationError: The value of path `n` (5) exceeds the limit (1).尝试插入时
abc，出现以下错误
Mongoose save error : CastError: Cast to number failed for value "abc" at path "n"
