grails-validation | 易学教程

How to access command objects from filter and is it possible at all?

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问题 I often write something like: def myAction{ MyActionCommand cmd -> if( cmd.hasErrors() ){ return render(status:HttpServletResponse.SC_BAD_REQUEST ); }else{ // actual action logic } So, I'd like to extract that common pattern into some reusable location. Filter looks like good candidate, but I can't find the way to get command object from the filter. Tryed something like this (in filters closure): formValidation( controller:'*', action:'*' ){ before = { cmd -> if( cmd.hasErrors() ){ response

How to access command objects from filter and is it possible at all?

阅读更多关于 How to access command objects from filter and is it possible at all?

How to access command objects from filter and is it possible at all?

阅读更多关于 How to access command objects from filter and is it possible at all?

What is the connection between validate() and hasErrors()

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问题 This question comes from the problem of another question of mine. In that question, I come across a situation that hasErrors() function doesn't work for non-persistent domain class , even after all the things I did following the instruction, part 7.5 . Following Victor's way, I fixed the problem by calling validate(), but I don't understand why it works. The Grails documents seem to say nothing about you should call a validate() before hasErrors() function. How could this happen? 回答1: It does

Grails validation of a list objects

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问题 I'm trying to get grails to validate the contents of a List of objects, might be easier if I show the code first: class Item { Contact recipient = new Contact() List extraRecipients = [] static hasMany = [ extraRecipients:Contact ] static constraints = {} static embedded = ['recipient'] } class Contact { String name String email static constraints = { name(blank:false) email(email:true, blank:false) } } Basically what i have is a single required Contact ('recipient'), this works just fine:

Grails unique test fails after interchanging attribute values

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问题 Hello I am trying to implement a simple translation list, meaning I have a values and translations to this values. [Edit:] As this is part of my user interface and values and translations shall be exportable via xml, using the i18n files seams quite inconvinient for this proposition. Thats why I decided to store them in a database. I have one domain class for a value: class Value { String label static hasMany = [ translations: Translation ] } and one for translations with a unique constraint

grails validate nested command object not working

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问题 I'm using grails 2.2.1 and attempting to validate a nested command structure. Here is a simplified version of my command objects: @Validateable class SurveyCommand { SectionCommand useful SectionCommand recommend SurveyCommand() { useful = new SectionCommand( question: 'Did you find this useful?', isRequired: true) recommend = new SectionCommand( question: 'Would you recommend to someone else?', isRequired: false) } } @Validateable class SectionCommand { String question String answer boolean

Grails custom validator for domain class

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问题 I have a restriction so there could be no more than ConfigurationHolder.config.support.reminder.web.person.max object stored. I didn't find how to add a validator which doesn't relate on particular property. So for now I implemented it in this way. Do you guys have any ideas how to make it better? package support.reminder.web import org.codehaus.groovy.grails.commons.ConfigurationHolder; class Person { String firstName String lastName String email Date lastDutyDate static constraints = {

How to access command objects from filter and is it possible at all?

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I often write something like: def myAction{ MyActionCommand cmd -> if( cmd.hasErrors() ){ return render(status:HttpServletResponse.SC_BAD_REQUEST ); }else{ // actual action logic } So, I'd like to extract that common pattern into some reusable location. Filter looks like good candidate, but I can't find the way to get command object from the filter. Tryed something like this (in filters closure): formValidation( controller:'*', action:'*' ){ before = { cmd -> if( cmd.hasErrors() ){ response.sendError( HttpServletResponse.SC_BAD_REQUEST ); return false; }else{ return true; } } } Intersted in

Grails conditional nullable validation or custom validator with nullable option

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问题 I have a form to create a place. Depending of the country, the province (state, region) field is required or not. When is not required, I want to be null, not empty string. I have code that makes all empty form fields, null: def newparams = [:] place = new Place() params.each() { k, v -> if (v instanceof String && place.hasProperty(k)) { if (!v.trim().length()) { newparams[k] = null } else { newparams[k] = v } } } place = new Place(newparams) place.validate() Now, in the place domain, I have