Author Archive

Crop center and resize paperclip image attachment

has_attached_file :profile_image,
storage: :s3,
s3_credentials: {
bucket: Settings.s3_bucket_name,
access_key_id: Settings.aws_access_key_id,
secret_access_key: Settings.aws_secret_access_key
default_url: '/assets/default_profile_pic.png',
styles: { square_50: '', square_100: '', square_193: '' },
convert_options: {
square_50: '-gravity center -resize 50x50^ -crop 50x50+0+0',
square_100: '-gravity center -resize 100x100^ -crop 100x100+0+0',
square_193: '-gravity center -resize 193x193^ -crop 193x193+0+0'

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Date Time Format In RUBY

November 27, 2012 1 comment

Format meaning:

%a – The abbreviated weekday name (“Sun”)
%A – The full weekday name (“Sunday”)
%b – The abbreviated month name (“Jan”)
%B – The full month name (“January”)
%c – The preferred local date and time representation
%d – Day of the month (01..31)
%H – Hour of the day, 24-hour clock (00..23)
%I – Hour of the day, 12-hour clock (01..12)
%j – Day of the year (001..366)
%m – Month of the year (01..12)
%M – Minute of the hour (00..59)
%p – Meridian indicator (“AM” or “PM”)
%S – Second of the minute (00..60)
%U – Week number of the current year,
starting with the first Sunday as the first
day of the first week (00..53)
%W – Week number of the current year,
starting with the first Monday as the first
day of the first week (00..53)
%w – Day of the week (Sunday is 0, 0..6)
%x – Preferred representation for the date alone, no time
%X – Preferred representation for the time alone, no date
%y – Year without a century (00..99)
%Y – Year with century
%Z – Time zone name
%% – Literal “%” character

t =
t.strftime(“Printed on %m/%d/%Y”) #=> “Printed on 27/11/2012”
t.strftime(“at %I:%M%p”) #=> “at 11:06AM”

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Get current page URL webdriver 2.0

Get the URL of the current page


Categories: Selenium Tags: , ,

Install ImageMagick in CentOS

Install ImageMagick in CentOS

$yum install ImageMagick-devel

Categories: Linux Tags:

Elements Locators in Selenium Ruby webdriver

September 24, 2012 2 comments
        :class             => ‘class name’,
        :class_name        => ‘class name’,
        :css               => ‘css selector’,
        :id                => ‘id’,
        :link              => ‘link text’,
        :link_text         => ‘link text’,
        :name              => ‘name’,
        :partial_link_text => ‘partial link text’,
        :tag_name          => ‘tag name’,
        :xpath             => ‘xpath’
Categories: Selenium Tags: , ,

Disable Firewall CentOS / RHEL / RedHat

September 18, 2012 2 comments

First login as the root user.

Next enter the following three commands to disable firewall.
# service iptables save
# service iptables stop
# chkconfig iptables off

If you are using IPv6 firewall, enter:
# service ip6tables save
# service ip6tables stop
# chkconfig ip6tables off

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get number of links in a page using Selenium IDE

get number of links in a page using Selenium IDE
Categories: Selenium Tags: