Hi, In my recent grails project, i worked on integrating twitter API with the application. I used Twitter4j (a java wrapper for twitter API calls), to integrate the application and use the API calls. You can refer this blog to see how we can integrate the grails application with Twitter. For making any API calls […]
Every now and then we have to bootstrap data in our application. It takes lot of time thinking what name to give, what description to add and other stuff. To overcome this, we can use faker plugin which can generate random tokens as per your need. To use this, add following in BuildConfig.groovy [java] compile […]
Hi, Some times when we access domain objects of collections in one to many or many to many relationships, we get Hibernate class wrapped with javassist, basically hibernate wraps all loaded objects with javassist after loading(lazy loading case) them . So if we call class.name on the members of collections in one to many or many to many relationships […]
GrailsProduct EngineeringSoftware development
It is normally difficult to copy file/folders from one location to another. In my recent Grails Development project, i successfully achieved this. I had to copy files/folders from one location to another on file system. I searched about it and came across a cool method to copy files or directories from one location to another. We […]
Sometimes there is need to get some default value in place of null values from a list, that was the reason I came across: withLazyDefault and withEagerDefault methods. My use case consisted of a list of user names with possibility of null elements, hence wherever the element was null, I wanted to return “unknown”. Although […]
In one of my recent project, i want to use grails web-flow with ajax call. It’s very easy to implement the web-flow with ajax call. Grails web-flow always track the actions on the basis of eventId & flow execution key. So, to implement ajax call in web-flow, we have to pass the event id & […]
Hi, Recently one of my friend asked me whether there is a mechanism in grails to handle the use-case where we have different packages but having same domain name. Here we are having duplicate domain class names in different package and by default the domain classes are auto-imported in HQL queries which doesn’t required to […]
Today I found two very interesting methods: takeWhile and dropWhile. The names itself reveals their work i.e. takeWhile (consider while some condition is true) and dropWhile (ignore while some condition is true). Although, these methods have been added to Groovy 1.8.7, but for character sequence, these methods are supported in Groovy 2.0 only. The takeWhile […]
We are in the process of upgrading our pre 2.0 Grails app to version 2.1.0. This propelled us to update many of the used plugins. One of them was Shiro plugin. We upgraded it from 1.0.1 to 1.1.4. On upgrading the plugin our login attempts were consistently failing, the reason being, this version uses Sha512Hash […]
