grails-controller

Question : is there a way to do automatic command object binding with request.JSON data? Given this simple Command object in my grails controller: class ProfileCommand{ int id String companyName static constraints = { companyName blank: false id nullable: false } @Override public String toString() { return "ProfileCommand{id=$id, companyName='$companyName'}"; } } and my controller method signature of: def update(ProfileCommand command) {...} How can I get request.JSON data into my command object? So far, the only way I've been able to do it is to create the command object manually within the

This question has been partly answered here but there is still an issue with referencing the default datasource dynamically. I'm working on an internal application that allows developers to modify configuration settings for one of our multi-tenant applications and push those settings from dev to testing, staging and production. Each one of these will have their own datasource, and the Grails app will be installed on each developer's computer. The local datasource will be the default one, and then dataSource_testing, dataSource_staging and so on will reference the appropriate environments. I

I know early versions of Grails used prototype scope for controllers because actions were all closures at that time. I know that the current version documentation recommends singleton scoped controllers for controllers that use methods as actions. From the following post it seems that methods and singleton scope are more desirable or recommended, but it's not clear why. ttp://grails.1312388.n4.nabble.com/Default-scope-for-controllers-doc-td4657986.html We have a large project that uses prototype scoped controllers with actions as methods. Changing to the recommended controller scope involves

I just realised that for a Grails controller there is another rendering method 'respond'. What's the difference between respond and render method if we want to render a view in the controller. The respond method uses content negotiation to respond with the most appropriate content type based on the requests 'ACCEPT' header. Accept: text/html, application/xhtml+xml, application/xml;q=0.9, */*;q=0.8, application/json This way the consumer of your site can choose how they wish to be returned data. This may not be the best option if you want to force a specific return type. For example: You are

Is there an easy way in Grails to not allow deleting for any Domain Class? And rather have a delete flag in each domain which gets updated whenever something is deleted. Also, in effect all the list/show methods should not show objects where delete flag is true. I know I can do that by manually editing all my CRUD methods in all the controllers but that seems a little bit too much work when working with Grails where everything can be done by changing some flag somewhere!! My usual list method looks like following, almost all the list methods in my project lets user access things which only

I have a controller that makes a connection to a url to retrieve a csv file. I am able to send the file in the response using the following code, this works fine. def fileURL = "www.mysite.com/input.csv" def thisUrl = new URL(fileURL); def connection = thisUrl.openConnection(); def output = connection.content.text; response.setHeader "Content-disposition", "attachment; filename=${'output.csv'}" response.contentType = 'text/csv' response.outputStream << output response.outputStream.flush() However I think this method is inappropriate for a large file, as the whole file is loaded into the