Category: Ruby

Ruby, a scripting language created for simple and fast object-oriented programming (object-oriented programming), was developed by Japanese Yukihiro Matsumoto in the 1990s and complies with the GPL agreement and Ruby License. Its inspiration and features come from Perl, Smalltalk, Eiffel, Ada, and Lisp languages. The Ruby language itself has also developed Ruby language alternatives to other platforms such as JRuby (Java platform) and IronRuby (.NET platform). The author of Ruby started writing Ruby on February 24, 1993, and it was not officially released to the fj (news group) until December 1995. Because Perl is pronounced the same as the June birthstone pearl, Ruby is named after the July birthstone ruby.

Ruby-on-rails – Storage Data in a dynamic form

I’m working on a dynamic form generator. Someone can create the following fields: string, text, boolean, number, file, etc.

Does it exist? A gem or guide for storing data from such dynamic fo

October 6, 2021By Simo Ruby data, Dynamics, Forms, rails, ruby, storageLeave a Comment

Ruby-on-rails – SQL query with groups can run on SQLITE, not running on PostgreSQL

The following query is suitable for local but not for production: (production is heroku is running postgreSQL, local I am running sqllite database)

ruby

Tutor.joins(:expertises).wh

October 6, 2021By Simo Ruby Group, ok, PostgreSQL, rails, ruby, run, SQLITELeave a Comment

Ruby-on-rails – Confused AutoLoad_paths and Eager_Load_paths in Rails 4

I read a post about rails load_paths, here is the link.

However, I am still confused about the difference between autoload_paths and eager_load_paths :

I tested them in a newly created

October 6, 2021By Simo RubyLeave a Comment

Ruby generates a two-dimensional code using RQRCODE

Reference: https://github.com/whomwah/rqrcode

1. gem’rqrcode’

2. In the helper:

3, views page 3. p> <%= image_tag generate_qr_code('http://baidu.com')%>

October 6, 2021By Simo Ruby 2D, build, code, RQRCode, ruby, UsedLeave a Comment

Ruby-on-rails – Rails 3 prints the HTML tag to the screen instead of rendering them

I am using the active_scaffold branch of vhochstein, and it runs very well on rails 3, except for some minor errors – http://github.com/vhochstein/active_scaffold. < /p> In rails 2.3, the following

October 6, 2021By Simo Ruby HTML, not, print, rails, rendering, ruby, Screen, tags, they, willLeave a Comment

Ruby – How to generate an activity record model from a database

I am looking for a tool or method that can convert my huge old database into active record model definitions…like reverse engineering… This is not a reverse engineering problem, it is more l

October 6, 2021By Simo Ruby Activity, database, Generation, How, model, Record, rubyLeave a Comment

Ruby-on-rails – Can we use TypHeous Ruby to redirect?

Is it possible to follow Typhoeus redirects and how? write something like this:

res = Typhoeus::Request.get(url, {:follow_location => true})

Is it possible to follow Typhoeus redirection and how?

Write something like this:

res = Typhoeus::Request.get(url, {:follow_location => true})

October 6, 2021By Simo Ruby rails, Redirect, ruby, Typheous, use, We canLeave a Comment

Ruby-on-rails – rails – how to store large numbers, such as 100000076685963

I need to store a lot of numbers: 100000076685963

For the integer of the db field type, which is the larger one. In my database migration, I use :

t.integer :fb_uid What field type shou

October 6, 2021By Simo Ruby big, Digital, How to, rails, ruby, storageLeave a Comment

Ruby-on-rails-3 – Access acquisition parameters in Cancan

Can I access the parameters passed in the url in CanCan? I am trying to authenticate guests based on the token in the URL.

Thank you!

https://github.com/ryanb/cancan/wiki/Accessing-requ

October 6, 2021By Simo Ruby Access, acquisition, CANCAN, parameters, rails, rubyLeave a Comment