rails imagemagick convert image paperclip

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Rails file upload tool - paperclip Notes

Github http://wiki.github.com/thoughtbot/paperclip/ Rdoc http://rdoc.info/projects/thoughtbot/paperclip Tutorial http://jimneath.org/2008/04/17/paperclip-attaching-files-in-rails/ Goodbye attachment_fu, Hello Paperclip: Goodbye attachment_fu, Hello P ...

Install paperclip ImageMagick (Paperclip:: NotIdentifiedByImageMagickError:)

my develop environment: windows xp F: \> ruby-v ruby 1.9.2p180 (2011-02-18) [i386-mingw32] F: \> rails-v Rails 3.0.5 Reference to the article: http://thewebfellas.com/blog/2008/11/2/goodbye-attachment_fu-hello-paperclip 1. Install paperclip gem

Upload and convert video using the Rails

Premised on the need to install FFMPEG, video conversion and upload realize we need some plug-ins Paperclip Nothing better that the choice of history, or the upload Github Acts As State Machine State machine support, are often used on the state machine, t

paperclip learn to use notes

paperclip is a plug-rails handling attachments, relative to the previous attachment_fu so superior in efficiency and use. Upload a picture attachment paperclip not need to change if the size of operation, you do not need to install ImageMagick. paper ...

Use ImageMagick for your website weight loss

Images as a percentage of page weight for the Alexa top 10 global web sites Share pictures on the site more and more important. Better optimization of images can improve the website speed. Reduce the broadband traffic. 1. On the users to upload pictures t

paperclip tool Legend

Today happens to also engage in file upload stuff (from engaging in nature), but is fleximage upload .... just to see yangzhihuan paperclip of things in writing, so also flipped through his collection, collation is as follows --- <囧 >----<

rails upload file _ Plug

rails upload file Plug: paperclip 1, model First, the model file to add the following code: has_attached_file :photo , :styles => { :medium => "300x300", :thumb => "100x100" } Second, the database migration file And then modify migrate, add

ImageMagick like it! Easy for PDF 2 JPG

Because you want to use rst, latex as my main writing format. Then interact with others, the person you want to edit my file, how to do it? Outsourcing especially in the second project, the plan may have to be examined again on the package. How to ta

rails upload file _paperclip

rails upload file Plug: paperclip First, the model First, the model file, add the following code: has_attached_file :photo , :styles => { :medium => "300x300", :thumb => "100x100" } Second, the database migration file And then modify migrate

Paperclip Tip command is not recognized by the 'identify

Paperclip to cut with a picture, will prompt the following error: /tmp/stream20100103-13830-ywmerx-0 is not recognized by the 'identify' command Solution, in the config \ initializers directory create a custom_requires.rb file, add the following stat

Rails3 upload images to use and add a watermark paperclip

This article is mainly about using the paperclip record the process of adding a watermark, there's a problem. How to increase the watermark, see this article: "Rails3 + paperclip image plus watermark" (the time to step 5 to download htt

Latex Resources Summary

[Reprinted] Latex Resources Summary Preface latex is not difficult, latex is not art, but for Knowledge Engineers an author tool, nothing more. The real value lies in an article in which the discovery and logic, text, images, layout are only just form. If

Android boot screen changes

Android system boot animation consists of two parts: Boot display ANDROID text; ANDROID light animation. The article said that animation is the first boot, start the following text! 1. Making the current screen pixel of the image (simulator defaults

Produced two lines of command from the start interface initlogo.rle png

Photo editing tool with good want png, save for the logo.png Where the order of execution in the logo.png command: #使用ImageMagick自带的convert命令,进行raw格式转换 02 convert -depth 8 logo.png rgb:logo.raw 03 04 android自带的rgb2565工具,对raw文件进行rle565格式转换 05 $(SRC_HO

Produced two lines of command from the start screen initlogo.rle png

Good image editing tools with the desired png, save for the logo.png In the logo.png which orders execute the command: #使用ImageMagick自带的convert命令,进行raw格式转换 02 convert -depth 8 logo.png rgb:logo.raw 03 04 android自带的rgb2565工具,对raw文件进行rle565格式转换 05 $(SR

linux tomcat deploy tomcat common to the management

Related Transfer commands: zip-r myzip.zip / root / myfolder unzip myzip cp-r / root / back / root / .... / ROOT whereis httpd weget http://....jdk.bin ps-aux | grep java see the process kill -9 12345】 【-9 force Database backup command timed task 【】 Gener

Tomcat and mysql under Linux operating

zip-r myzip.zip / root / myfolder unzip myzip cp-r / root / back / root / .... / ROOT whereis httpd weget http://....jdk.bin ps-aux | grep java see the process kill -9 12345 [mandatory] -9 Time task [database backup command] Install fonts to generate PDF

Rails Paperclip and ImageMagick

On the Web to find the paperclip on the plug-in, found by they said, there is no set size effects, was found to need to install an image-editing software do: ImageMagick Introduce the following simple: Environment: Windows + Cygwin + Rails Person to the p

paperclip and ImageMagicK already in the perfect combination of under windows

Some time ago because of their work in developing a small ror when the site suffered a long circulated on the Internet after the paperclip upload an image processing with ImageMagicK thrown is not recognized by the 'identify' command error. Multip

Under the paperclip and ImageMagicK already in the perfect combination of windows

Some time ago because of their work in developing a small ror when the site suffered a long circulated on the Internet after the paperclip upload an image processing with ImageMagicK thrown is not recognized by the 'identify' command error. M

Rails plugin to use video to Amazon S3 Paperclip services

Amazon's S3 cloud service and EC2 in the more commonly used here is to introduce a plug-and S3 upload for use with an example. Create model #video.rb class Video < ActiveRecord::Base # Paperclip # http://www.thoughtbot.com/projects/paperclip has_at

Use ImageMagick to convert pdf to png image vector graphics

As I write, "to achieve based on MoinMoin + ConTeXt Wiki site contains mathematical content," a paper addressed to the generated pdf TeX vector graphics into the background transparent png image, which is the use of ImageMagick's conver

imagemagick's convert command convert jpg, png to pdf

Use ComicShelf software download comics First install ComicShelf this software. Use ComicShelf download the needed comic books to a local directory. Here, I downloaded the "Fairy Tail", and then copied to / tmp below. Volume 10 comics per o

Uploading multiple images with Rails and Paperclip

The "Add Photo" function lets us dynamically add more photo fields to our form without having to make a trip to the server. This can be helpful from a performance point of view but quite useless if the client has javascript disabled. We' ...

In the Linux platform to install and configure Ruby on Rails Detailed

ruby on rails recommend the production environment is running Linux / FreeBSD / Unix, or Unix family of operating systems, using lighttpd + FCGI solution. The following will be my Linux operating system, lighttpd + FCGI, MySQL database as an example, comp

In the Linux platform, install and configure Ruby on Rails Xiangjie

uby on rails running the recommended production environment is Linux / FreeBSD / Unix, the Unix family of operating systems, using lighttpd + FCGI solution. The following Linux operating system, I will, lighttpd + FCGI, MySQL database, for example, from s

rails commonly used plug-in

From: http://saberma.github.com/2009/09/14/rails-plugin.html Rails plug-ins is very rich, and most of all on github, is very convenient here briefly revise the Rails plug-ins I used Related entities restful_authentication [Essential] generate user entitie

Photo Upload Plugin Paperclip

Official website: http://thewebfellas.com/blog/2008/11/2/goodbye-attachment_fu-hello-paperclip Before we may have been in use attachment_fu upload files, Now has a very convenient upload pictures Chajian Paperclip, the plug and ImageRmagick Jieheshiyong c

Install rails environment

Installing Rails environment Operating system installation # Installation ubuntu8.04 Desktop ( Server install Server Edition ) # After modifying the source configuration sudo vi /etc/apt/sources.list # Note, the following is 8.04 Version # By cG key

Use paperclip to upload files to rails3

Transfer from: http://club.udong.com.cn/group/topic/116325 of: BlackDuke The latest version is 2.3.8 paperclip: $ Gem install paperclip Through the bundle installation, Gemfile add the following configuration: gem 'paperclip', '~> 2.3.6

Common plug-in rails

Related entities restful_authentication [Must] generate user entity, restful Login project mislav-will_paginate [Essential] tab project annotate_models Class file in the entity header field information display project paperclip For uploading attachments,

centos 5.5 rails installation reference

Two days to deploy a project that is deployed in Centos 5.5, the original use ubuntu 10.4, the results of the paperclip and the passenger of the problem, give up. Replaced Centos, the problem disappeared. Record 1, yum update, 2. Install the necessary num

Practical Rails plug-ins

Editor article FCKeditor #undefined method `relative_url_root' for #<ActionController::CgiRequest:0x23b026> #There is been a Fix for Rails 2.2 #in the file app/controllers/fckeditor_controller.rb #look for uploaded = request.relative_url_root.to_s+"

And rails 2.0 with Swing - rails2.0 comprehensive Tutorial - Part I

About a rails 2.0 Introduction of the article, a total of two parts. Translate the following article from here, or new Translation not please everyone exhibitions. I am pleased to see my video tutorial rails2.0 widely accepted. More than 1500 people have

After the upgrade version of the file upload Rails

JE at english on Rails File Upload, found that most found the article, because both versions of the problem can not be used. For instance: hideto boss of Rails File Upload Or, the most typical file_field you encountered in the use of the Wrote undefi ...

Rails Learning Notes (2)

1: start the web server, you can add-e option to specify the startup to choose any environment ruby script / server-e development | test | production 2: rails in emphasizes "custom reuse configuration" from the database table, to the controller,

windows installed and NetBeans Ruby On Rails

First install a good Ruby and netbeans (all open source), and then install ImageMagick-6.4.5-3-Q8-windows-dll.exe (both installed by default), DOS environment then downloading rails: gem install rails-v 1.2.6 (the company used the old version and I c ...

Rails detail (c) naming convention

Rails naming convention. 1. Mixed case, underline, complex Variables, all lowercase letters, underlined words in the middle of segments to use (Class) and Modules: Use the first letter capitalized. For example: LineItem this class name. Rails uses th ...

Rails Recipes reading notes

Today finished the rails recipes, the book older, and many things have to understand, we only looked under the rough. Simple to record notes. The following records are in accordance with section come. 1, User Interface Recipes 1, In-Place Form Editing.plu

Rails detail (14) dynamic query

Database than most running query returns matches based on the specified conditions of the result set, the query may return all name is 'dave' orders, or all the title of a certain blog, Han Rails's post, in many other frameworks and progr ...

Rails 3 of the Active Record query changes

202: Active Record Queries in Rails 3 Translator: Night Ming pig ( http://hlee.rubyeye.com/ ) Proofreading: wow beef In the last two episodes of Railscast where we demonstrate how to configure Rails 3 configuration of the environment and create a new Rail

rails project experience (1)

rails project experience In the past 16 months my colleagues and I have been busy on the rails of a larger project. After countless months of overtime and night n we finally see the project after the deployment of the 6 sets of IBM servers in the past wee

rails how to properly display Chinese??

Database, or page display Chinese Database development: adapter: mysql encoding: utf8 ... ... ... ... Page garbled change. Rhtml file encoded as uft-8. ROR programs make use of web, if the rhtml view file input Chinese, displayed on the page become garble

[Reprinted] Rails using gb2312/gbk and coexistence solution utf8

Source: http://xuxu.name/b-4755e670-2cbd-4488-8b4f-a04a1c022fea.htm Author: xuxu Recently had an item requires database is UTF-8 encoding, and Rails uses GBK encoding. (Do not ask why) So how to achieve the coexistence of the two encoding it? First of all

Rails way --->< The Rails Way> extract (4) REST, Resources, and Rails

1.REST (Representational State Transfer) have the appearance of state transition is one of the main reasons for using REST for all Web developers should think about how to name and organization in the application of resources and action. 2. Using Rails RE

Rails way --->< The Rails Way> extract (6) using ActiveRecord

1. When you Zai Xia Run Rails development mode server O'clock, Web browsing device right through the data Biao Li Ji Jie Gou's change will come out in the ActiveRecord object Zhong Fan Ying. However, if you run Zhao Rails of Kong Zhitai, Name chan

Rails way --->< The Rails Way> excerpt (6) using ActiveRecord

1. When you Zai Xia Run Rails development mode server O'clock, Web browsing device right through the data Biao Li Ji Jie Gou's change will come out in the ActiveRecord object Zhong Fan Ying. However, if you run Zhao Rails of Kong Zhitai, Name chan

Rails way --->< The Rails Way> extract (six) using ActiveRecord

1. When you Zai Xia Run Rails development mode server O'clock, Web browsing device right through the data Biao Li Ji Jie Gou's change will come out in the ActiveRecord object Zhong Fan Ying. However, if you run Zhao Rails of Kong Zhitai, Name chan

Rails part of the adjunct

AssetTagHelper Official links: http://api.rubyonrails.org/classes/ActionView/Helpers/AssetTagHelper.html auto_discovery_link_tag (type =: rss, url_options = (), tag_options = ()) Returns a link tag for the browser or news reader automatically find RSS or

Rails morgue ---- (personal notes, non-hatred you're the one)

1.puts, print, and p (1) puts if the string is not to wrap the end, puts it out of the string to add a line break (2) print out exactly what the output is required, the cursor will stop by end of line input (3) p inspect the output of a string, it may con
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