Merge pull request #15570 from Automattic/vkarpov15/gh-4720

types: support maxLength and minLength in SchemaTypeOptions

Author: vkarpov15

lib/schema/string.js

@@ -381,7 +381,7 @@ SchemaString.prototype.trim = function(shouldTrim) {
  *
  * #### Example:
  *
- *     const schema = new Schema({ postalCode: { type: String, minlength: 5 })
+ *     const schema = new Schema({ postalCode: { type: String, minLength: 5 })
  *     const Address = db.model('Address', schema)
  *     const address = new Address({ postalCode: '9512' })
  *     address.save(function (err) {
@@ -392,8 +392,8 @@ SchemaString.prototype.trim = function(shouldTrim) {
  *
  *     // custom error messages
  *     // We can also use the special {MINLENGTH} token which will be replaced with the minimum allowed length
- *     const minlength = [5, 'The value of path `{PATH}` (`{VALUE}`) is shorter than the minimum allowed length ({MINLENGTH}).'];
- *     const schema = new Schema({ postalCode: { type: String, minlength: minlength })
+ *     const minLength = [5, 'The value of path `{PATH}` (`{VALUE}`) is shorter than the minimum allowed length ({MINLENGTH}).'];
+ *     const schema = new Schema({ postalCode: { type: String, minLength: minLength })
  *     const Address = mongoose.model('Address', schema);
  *     const address = new Address({ postalCode: '9512' });
  *     address.validate(function (err) {

types/schematypes.d.ts

@@ -207,9 +207,11 @@ declare module 'mongoose' {
 
     /** If set, Mongoose will add a custom validator that ensures the given string's `length` is at least the given number. */
     minlength?: number | [number, string] | readonly [number, string];
+    minLength?: number | [number, string] | readonly [number, string];
 
     /** If set, Mongoose will add a custom validator that ensures the given string's `length` is at most the given number. */
     maxlength?: number | [number, string] | readonly [number, string];
+    maxLength?: number | [number, string] | readonly [number, string];
 
     [other: string]: any;