by Prabhat Singh | Jun 4, 2014 | Embedded
Introduction: This blog is written for SPI communication between ADE7753 IC and NUC200VE3AN 32 bit microcontroller. If you want to know more about SPI communication, I would suggest you to read my another blog NUC200VE3AN SPI basic part 1.(link will post very soon)...
by Vivek Sadh | May 29, 2014 | Database
Hi Guys, this is my second blog post of this month. The title is “Using SQLFiddle”. In this post I am going to explain about a very useful online tool SQLFiddle which I have been using for a while. As JSFiddle is used to run and test CSS, JQuery etc, using...
by Manish Bharti | May 27, 2014 | GORM, Grails, Grails 2.3.0
save() method of domain class accepts two parameters failOnError and flush (both of these parameters are optional). failOnError when it is set to true then save() method will throw ValidationException when validation fails during save. flush when it is set to true...
by Amit Pandey | May 27, 2014 | Node.js
Here I am going to show you that how we can create a Powerful MVC web-application using Node.js. I am going to use locomotive framework to create the web-application. Before starting I would like to give you brief introduction about the locomotive :...
by Amit Pandey | May 27, 2014 | Node.js
Below are the step to setup the development environment of node.js using Mongodb: Open terminal and add the repo executing follwing command on console sudo add-apt-repository ppa:chris-lea/node.js Execute sudo apt-get update Execute sudo apt-get install nodejs Once...
by Amit Pandey | May 27, 2014 | Node.js
In our previous blog I explained that how to create node.js web application using locomotive framework. Now I am going to explain the directory structure and it’s work. Below is the directory structure of the node.js web application using locomotive. I will...
by Gaurav Chauhan | May 22, 2014 | MongoDB
In simple words “indexes are used to speed up query performance”. Let’s say you have a query which takes around 120ms to execute without indexes i can assure you that with proper indexes you can reduce that time by at least 10 times. Let me show you...
by Gaurav Chauhan | May 22, 2014 | MongoDB
In this blog post i am going to explain how to delete MongoDB document. The are few ways which are illustrated below : If we execute remove on collection without any params then it will delete all records db.users.remove({}) // it will delete all documents along with...
by Gaurav Chauhan | May 22, 2014 | MongoDB
In this blog post we are going to see how to drop a field from a MongoDb document ? For people coming from RDBMS you must be remembering the alter table command for dropping/adding columns in a table. In MongoDB it is possible to do this operation on some of the...
by Gaurav Chauhan | May 22, 2014 | MongoDB
In this blog post we are going to learn the process of updating multiple documents in MongoDB. MongoDB provides us with update() function to achieve the same. Here are few use cases : db.users.find(); { "_id" : ObjectId("537da62d770359c2fb4668e2"),...
by Gaurav Chauhan | May 22, 2014 | MongoDB
MongoDB uses save and insert option for adding new records in the database. Let me explain the difference between two : Insert : insert is used to add a document in a mongodb collection Save : save is used to add as well as update a document in a mongodb collection....
by Vivek Sadh | May 22, 2014 | Database
Hello Guys! This is my first blog post of this month and the topic is “Generate CSV file using MYSQL command” In this post I will discuss about an interesting feature of MYSQL. MySQL provides an easy way for generating csv files by writing the output of a...
by Prashant Gupta | May 21, 2014 | GIT
Recently, I had to create few pull requests to other repositories and in order to do that I had to track the code on some repositories for updating my copy and finally publishing my changes to them. In such situation following steps/commands can help: Add the...
by Manish Bharti | May 18, 2014 | Grails, OAuth
In my last blog Integration with Google using Grails Oauth Plugin, we have seen the steps to connect/authenticate with Google using grails oauth plugin. The code in the blog works fine but uses OAuth 1.0. Google shows different screen for OAuth 1.0 and OAuth 2.0 for...
by Manish Bharti | May 11, 2014 | Grails, OAuth
We have seen the steps to connect with following oauth providers using Grails Oauth plugin in our previous posts: Facebook LinkedIn Twitter Following are the simple steps to integrate Google plus in you grails application: Step 1 : Install the Oauth plugin Open...
by Mridul Pandey | May 4, 2014 | Embedded
ARM stands for Advanced RISC Machines where RISC stands for Reduced Instruction Sets Computer. The ARM Cortex M0 processor is an eligible choice for Energy Efficient Embedded Products. The features of these processors are Low Power usage, Highly Energy efficient,...
by Vivek Sadh | Apr 25, 2014 | Linux
Hello Guys! This is my second post of this month. In this post I will be explaining on how to parse JSON using command line. A command-line processor can be used to test or debug JSON responses from server. We can easily feed JSON responses from web server into the...
by Rajesh Ranjan | Apr 21, 2014 | Grails
Today we are going to learn how to use Geb in Cucumber functional automated testing? If you are new to Cucumber than please go through my blog. Cucumber Basic concept Fist-of-all if you want use Geb in your application than add these lines in BuildConfig.groovy def...
by Rajesh Ranjan | Apr 21, 2014 | Grails
Today we are going to learn how to use Scenario Outline and Examples in cucumber?. If you are new to cucumber functional automated testing than please go through my blog post Cucumber basic concept First-of-all create a feature file as LoginTest.feature and add these...
by Rajesh Ranjan | Apr 21, 2014 | Grails
Today we are going to learn cucumber functional automated testing basic concept with example. If you are new to cucumber than please go through my cucumber set-up blog. Cucumber set-up step Before starting our testing we will know some basic about 1.How to create...
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