I think my question has just been solved by another article, Clarified CQRS by Udi Dahan. The section “Commands and Validation” starts as follows: Commands and Validation In thinking through what could make a command fail, one topic that comes up is validation. Validation is different from business rules in that it states a context-independent … Read more
Fluent validation is one way of setting up dedicated validator objects, which you would use when you want to treat validation logic as separate from business logic. The aspect-oriented programming (AOP) paradigm enables separation of cross-cutting concerns within a system, and validation is one such concern. Separating validation helps clean up your domain code and … Read more
The character set that is used does not allow for diacritics. In brief, it only allows uppercase ASCII characters. The restriction ultimately comes from the historical way in which banking cards encode data onto the magnetic stripe (as defined in ISO 7811). The data is encoded in a 7 bits per character format known as … Read more
In case you aren’t using ajax, or are still on JSF 1.x, and you really need to invoke a business action in cancel() method (i.e. just reloading the page is insufficient), then your best bet is to add immediate=”true” to the button. This way all input fields which don’t have immediate=”true” will be skipped in … Read more
Mongoose 5.x https://mongoosejs.com/docs/migrating_to_5.html#array-required tags: { type: [String], validate: v => Array.isArray(v) && v.length > 0, } Mongoose 4.x One-liner would be: tags: {type: [String], required: true} SchemaTypes
This happens because you’re re-defining renderField as a new component every time you render which means it looks like a new component to React so it’ll unmount the original one and re-mounts the new one. You’ll need to hoist it up: const renderField = ({ input, label, type, meta: { touched, invalid, error } }) … Read more
Try this. It’ll basically accept any key within an object campaign and the value must validate against Joi.date().iso() campaign: Joi.object().pattern(/^/, Joi.date().iso()) This however will match any key. You can restrict this by padding out the regex a little. e.g. only word characters between 2 and 25 chars campaign: Joi.object().pattern(/\w{2,25}/, Joi.date().iso()) UPDATE Regarding the example in … Read more
I have found the problem. The problem was that the HTML I was trying to validate was not contained within a <form>…</form> tag. As soon as I did that, I had a context that was not null.
As I did not get a (valid) answer here, I asked a couple of people from Microsoft and they confirmed that it was not currently possible. Brad Wilson: At this time, only property level validators can emit client-side validation (as that lines up much better with the idea of input validation in the form of … Read more
Here is a sample. It’s a min value validator where you pass in a number to validate. import {Control} from ‘angular2/common’; export const minValueValidator = (min:number) => { return (control:Control) => { var num = +control.value; if(isNaN(num) || num < min){ return { minValue: {valid: false} }; } return null; }; }; More details can … Read more