Getting a value from g:select in Grails - grails

I'm trying to create my own 'edit' form in my grails application.
My g:select is currently populated with stuff from my database and looks like this:
<g:select name="nameList" from="${Card.list()}" value="${name} " />
And then the value :
<g:field name="amount" type="number" value="" required=""/>
My domain has only two variables - name and amount. I want to select the item from the dropdown box, type in the amount and just click 'update', my update method is a default one generated by grails so it requires ID and Version, how would I go about passing it through?
My update button ;
<g:actionSubmit class="save" action="update" value="${message(code: 'default.button.update.label', default: 'Update')}" />
My domain code:
package cardstorage
class Card {
String name;
int amount;
static constraints = {
name(blank:false);
amount(blank:false);
}
String toString(){
return name;
}
}
Thank you

I have fixed it but I'm sure it is not a proper way to do so.
<g:form method="post" >
<g:select name="card" from="${Card.list()}" optionValue ="name" optionKey="id" />
<g:field name="amount" type="number" value="" required=""/>
<fieldset class="buttons">
<g:actionSubmit class="save" action="update" value="${message(code: 'default.button.update.label', default: 'Update')}" />
</fieldset>
</g:form>
thats my code for the g:select. In my Controller method, passing the value of 'card' to the 'Long id' would result in 'id' being 49 (null + 1 = 49?)
def update(Long id, Long version) {
id = params.card;
id = id- 48;
...
}
Now I'm able to update my records, however I'm curious how should I have done this more properly.

Related

Problems with form gsp

I'm trying to send parameters from my form (gsp) to my controller grails, but doesn't work.
<g:form url="[action:'searchByFilter', controller:'invoice']" method="GET">
<p>Filtro de busca</p>
<g:textField name="search" value="${invoice?.search}" params="search : search"/>
<g:submitButton name="search" class="input-search" value="${message(code: 'default.button.search.filter')}" />
</g:form>
I need to send input's value to do a result's filter. But, input's value isn't sending.
My domain class code:
static namedQueries = {
getInvoicesByStatus {
eq 'deleted', false
}
getInvoicesByFilter {
eq 'description', Invoice.get(params.search)
}
}
What's my mistake? I need to use namedQuery :)

Map class domain

I have my class domain
class domain Factura {
String name
BigDecimal value
}
in my html:
<g:form>
<input type="text" name="name" />
<input type="number" step="any" name="value" />
<inpu type="submit" value="save" />
</g:form>
in my controller
def save(Factura factura) {
//Suppose in the value I have put : 152.36
println "valor: " + factura.value => return 15236.0
//Suppose in the value I have put : 152,36
println "valor: " + factura.value => return 15236.0
}
How can I return as a decimal? I need 152.36
You can use text input and cast it to BigDecimal
Change this
<input type="number" step="any" name="value" />
to
<input type="text" name="value" />
In your save method
try{
params.value.toBigDecimal()
catch(e){
// error
}

Creating a view with Domain object fields

I have the following domain classes.
Address
String number
String roadName
String country
Person
String fName
String age
Address address
I have a view called PersonViewSave i want the user to be able to save Person information from this view. When creating a Person record the user needs to create a Address record as well.
My Person controller looks like this:
PersonViewSave ={
def ad = new Address(number: '11', roadName: 'round road', country:'France').save()
new Person(fName: 'Alex', age: '23', address:ad).save()
}
1.) How do i collect parameters from the view and bring it to the PersonViewSave method ? (And can someone show me a sample GSP view file with the Person and Address textfields)
2.) Incase if there's an error in the Address created, how do i prevent creating a Person object with an address as shown in this line new Person(fName: 'Alex', age: '23', address:ad).save()
UPDATE
<g:form name="myForm" method="post" action="doIt">
<p>Person info:</p>
<label for="firstName">First Name</label>
<g:textField name="firstName" id="firstName" />
<p>Address Info:</p>
<label for="roadName">Street Number</label>
<g:textField name="roadName" id="roadName" />
<g:submitButton name="submit" value="Submit" />
Here, i have only used few objects from the Domain classes just to see if it works.
I also have a parameter called createdDate in both Domain classes. That as well needs to be auto inserted.
My Service Class is as follows:
def saveService () {
def ad = new Address(params)
if (ad.save(flush: true)) {
def p = new Person(params)
p.address = ad
p.save()
} else {
// display validation errors
}
}
1.) I get an error and it is > No such property: params for class: pro.PersonService
2.) What hapence i have 2 domain class with parameters that has the same Name. For example Animal and Person domain classes have an parameter called firstName. According to your previous solution how will grail distinguish to what domain class it belongs to ?
I am using Grails 2.2.4
Here is a way to check that the Address saved correctly:
def ad = new Address(params)
if (ad.save(flush: true)) {
def p = new Person(params)
p.address = ad
p.save()
} else {
// display validation errors
}
This returns the Address if it saved properly, which results in true, otherwise it returns null (or false).
Also, you can use data binding via the params map to create your objects from parameters. As long as the key in params matches up to a property name in your Address and Person class, the value of the parameter will be assigned to the object.
So, for instance, to map your Person, you will need fields like the following:
<g:form name="personForm" method="post" action="PersonViewSave">
<p>Person info:</p>
<label for="fName">First Name</label>
<g:textField name="fName" id="fName" />
<label for="age">Age</label>
<g:textField name="age" id="age" />
<p>Address Info:</p>
<label for="number">Street Number</label>
<g:textField name="number" id="number" />
<label for="roadName">Road</label>
<g:textField name="roadName" id="roadName" />
<label for="country">Country</label>
<g:textField name="country" id="country" />
<g:submitButton name="submit" value="Submit" />
</g:form>
you can try this
def ad = new Address(number:params.number , roadName:params.roadName , country: params.country)
if (ad.save(flush: true)) {
def p = new Person(fName:params.fName , age: params.age, address:ad)
p.save()
} else {
// display validation errors
}

Grails controllers

I have a form similar to this one in Grails:
Name: _____
Age: _____
Street: _____
Email: ____
|Submit|
How can i pass all the filled in information to a controller that will add me the records to the database? Im kinda new to Grails, and my problem is i dont understand how to "pass" and get things to the controllers.
class Person {
String name
Integer age
String street
String email
}
class PersonController {
def save = {
def personInstance = new Person(params)
personInstance.save(flush:true)
}
}
<g:form controller="person" action="save">
<g:textField name="name" />
<g:textField name="age" />
<g:textField name="street" />
<g:textField name="email" />
<g:submitButton name="save" value="Save" />
</g:form>
Also, if you have a domain, you can run
grails generate-all com.foo.Person
And all the code will be generated for you. Then you can see how it is done.

How to direct to submit button to another action

how can I jump to another action in controller?
I have form and several submit buttons. Every submmit button has name.
<g:form action="save" method="post">
<g:input name="title" value="${letter.title}" />
<g:input name="comments[0].text" value="${letter.comments[0].text}" />
<g:submitButton name="save" value="save" />
<g:submitButton name="addComment" value="add" />
</g:form>
def save = {
if (params.addComment){
letter.addToComents( new Comment() )
render(view:'form', model:["letter": letter])
return
}
...
if ( letter.save() )
...
}
def addComment = {
...
}
It works, but it is not good. I want move code from block "addComment" to action addComment:
def save = {
if (params.addComment){
// it donĀ“t work
redirect ( action:"addComment" )
}
...
if ( letter.save() )
...
}
def addComment = {
letter.addToComents( new Comment() )
render(view:'form', model:["letter": letter])
return
}
Or it exists better solution?
It would be nice:
<g:submitButton name="save" value="save" action="save" />
<g:submitButton name="addComment" value="add" action="addComment" />
Thanks a lot
Tom
Use the g:actionSubmit tag instead.
<g:form method="post">
<g:input name="title" value="${letter.title}" />
<g:input name="comments[0].text" value="${letter.comments[0].text}" />
<g:actionSubmit action="save" value="Save" />
<g:actionSubmit action="addComment" value="Add Comment" />
</g:form>
For those who are using Twitter Bootstrap plugin (or need something besides text in your button) and want to add a glyphicon to the button, you will need to use the button tag. So you need to do something like
SNIPPET 1.
<g:form role="form" method="post">
...your inputs
<button type="submit" name="_action_save">
<span class="glyphicon glyphicon-ok"></span>
Save
</button>
<button type="submit" name="_action_saveAndNew">
<span class="glyphicon glyphicon-ok"></span>
Save and New
</button>
</g:form>
where in your button you will need to specify the name of your action with the prefix
_action_
to get something like this
name="_action_yourActionName"
just a little reminder, since I am using twitter Bottstrap plugin 3.0 this is how you add a glyphicon
<span class="glyphicon glyphicon-ok"></span>
SNIPPET 1. has a similar behaviour to:
<g:form role="form" method="post">
...your inputs
<g:actionSubmit action="save" value="Save" />
<g:actionSubmit action="saveAndNew" value="Save and New" />
</g:form>
In the end this example help you have a similar behaviour to actionSubmit in cases where you don't want or can't use it. This is only an alternative and it'd be better to use actionSubmit whenever possible.

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