I found this blog that explains how to install Grails on Max OS X.
Copy the downloaded folder to /usr/share/
$cd /usr/share $sudo chown -R root:wheel grails-1.1.1/ $sudo chmod 0755 grails-1.0.1/bin/*
$ln -s grails-1.1.1 grails
Add the path variable to /ect/profile like on Linux.
When deploying a new version of my application (actually I started an entire project from scratch) I continuously bounced my head against this “You don’t have the permission…” exception.
I finally added the following lines to my Configuration/config.groovy file:
google.appengine.application=”myproject”
google.appengine.email=”myname@gmail.com”
google.appengine.password=”XXX”
where myproject is the part that appears in the url, like myproject.appspot.com.
Here are the directions for a patch in a great Screencast by Tomás Lin that makes authentication work in a Grails Application on Google’s App-Engine:
google.appengine.sessionEnabled = true // default true google.appengine.enableSsl = true // default true google.appengine.security.useHttps = ["/secure", "/shoppingcart/*", "/admin"] google.appengine.security.requireAdmin = ["/admin", "/notsecuredadmin"] google.appengine.security.requireLogin = ["/admin", "/", "/yabbadabbadoo"]
Don’t forget to apply the securePatch.diff patch to the plugin directory of your project – that is in <home>.grails/1.1.1/projects/myproject/plugins/app-engine-0.8.1 in order for these properties effectively written to the web.xml file.
A blog entry about running grails on Google’s App Engine. Among other things the methods that are provided by the App-Engine plugin are listed.
The added domain class MetaClass methods are:
savegetdeletefindAllwithTransactionwithPersistenceManager (to execute code with access to the PersistenceManager)isJdoPersistent, isJdoDeleted, isJdoDetached, isJdoDirty, isJdoNew, isJdoTransactional, getJdoTransactionalObjectId, getJdoVersion, getJdoObjectId, and jdoMakeDirty corresponding to the JDOHelper
methods isPersistent, isDeleted, isDetached, isDirty, isNew, isTransactional, getTransactionalObjectId, getVersion, getObjectId, and makeDirtyControllers have these attributes added to their MetaClass:
params (with Request attributes like in Grails)sessionrequestresponseservletContextWhen using the above script the compiler apparently cannot find the Key class for the Google Data Store. A workaround is to simply add the following jar directly to the Classpath:
$APPENGINE_HOM/lib/user/appengine-api-1.0-sdk-1.2.1.jar