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We had a requirement that a template PDF which had Acroform fields had to be pre-populated (like name, email id etc) and sent to the end user so that he/she only needed to fill in the details which were expected to be filled by him/her. After going through the iText library, we found that the […]
keyword “in” is used in Groovy to check whether element exists in Collection. Example List [groovy] String str = "this is me " List list = str.tokenize(" ") String word = "this" assert word in list == true assert "hello" in list == false [/groovy] Example with Set [groovy] Set set = ["this","is","me"] String word […]
Recently in one of my projects, I had to bring the content of old-forgotten-deleted file back to the application code base using Git. The problem took a ‘fancy’ turn as the path to the file was no more a valid path in Git as there had been a major refactorings in our project esp. renaming […]
Hi friends, I was going through some utility funcitons being provided by jQuery. Found few methods like grep, map very userful that saves me from writing loops. I could relate them with grep, collect respectively as provided by Groovy, thought would share with you. I will be taking examples with JSON objects say Student. grep() […]
In my recent Project, I wanted to create a domain class in which records could only be added and read and no update was to be allowed on any of the records and I found a very nice way of doing it. Adding [java] static mapping = { cache usage: ‘read-only’ version false } [/java] […]
These are few basic steps which will help you to integrate your java application with facebook using facebook graph api. Steps : 1) Register your application at http://www.facebook.com/developers/ 2) Facebook will return Consumer Key and Consumer Secret for your application. 3) Create a login action: String facebookPermissions = FacebookPermissions // Login Action String callbackUrl = […]
Hi, In my recent grails project, i needed to write unit test cases for testing custom validators which i created in command objects. To test validators, there is a method provided by grails “mockForConstraintsTests()” for validating constraints on Domain as well as Command-Object fields. Let us take a scenario where we needed to use command […]
In recent week, i got to know about really good way of collaborating the screen in a linux. Let us take a scenario, Suppose User having name ‘B’ on the 5th floor of the company is having a problem/difficulty related to code execution, unable to figure out what to do?, and then he call […]
Grails applications can define their own codecs and Grails will load them along with the standard codecs. A custom codec class must be defined in the grails-app/utils/ directory and the class name must end with ‘Codec’. For more information see Dynamic Encoding Methods. [java] import java.security.MessageDigest import sun.misc.BASE64Encoder class PasswordCodec { static encode = { […]
