Search Results

Search found 8586 results on 344 pages for 'rails vim'.

Page 19/344 | < Previous Page | 15 16 17 18 19 20 21 22 23 24 25 26  | Next Page >

  • Rails 3 Form For Custom Action

    - by Andrew
    I'm having trouble routing a form to a custom action in Rails 3. Here are my routes: resources :photos do resources :comments collection do get 'update_states' end member do put 'upload' end end Here's the form_for: form_for @photo, :remote => true, :url => { :action => upload_photo_path(@photo) }, :html => { :multipart => :true, :method => 'put' } do |f| And here's the error message: No route matches {:action=>"/photos/42/upload", :controller=>"photos"} ... this is especially frustrating because "photos/:id/upload" is exactly the correct action for this form. What am I missing? EDITS - Here are the original Photo-related routes: photo_comments GET /photos/:photo_id/comments(.:format) {:action=>"index", :controller=>"comments"} POST /photos/:photo_id/comments(.:format) {:action=>"create", :controller=>"comments"} new_photo_comment GET /photos/:photo_id/comments/new(.:format) {:action=>"new", :controller=>"comments"} edit_photo_comment GET /photos/:photo_id/comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"} photo_comment GET /photos/:photo_id/comments/:id(.:format) {:action=>"show", :controller=>"comments"} PUT /photos/:photo_id/comments/:id(.:format) {:action=>"update", :controller=>"comments"} DELETE /photos/:photo_id/comments/:id(.:format) {:action=>"destroy", :controller=>"comments"} update_states_photos GET /photos/update_states(.:format) {:action=>"update_states", :controller=>"photos"} upload_photo PUT /photos/:id/upload(.:format) {:action=>"upload", :controller=>"photos"} photos GET /photos(.:format) {:action=>"index", :controller=>"photos"} POST /photos(.:format) {:action=>"create", :controller=>"photos"} new_photo GET /photos/new(.:format) {:action=>"new", :controller=>"photos"} edit_photo GET /photos/:id/edit(.:format) {:action=>"edit", :controller=>"photos"} photo GET /photos/:id(.:format) {:action=>"show", :controller=>"photos"} PUT /photos/:id(.:format) {:action=>"update", :controller=>"photos"} DELETE /photos/:id(.:format) {:action=>"destroy", :controller=>"photos"} Here are the relevant routes when I changed the route to match 'upload': photo_comments GET /photos/:photo_id/comments(.:format) {:action=>"index", :controller=>"comments"} POST /photos/:photo_id/comments(.:format) {:action=>"create", :controller=>"comments"} } new_photo_comment GET /photos/:photo_id/comments/new(.:format) {:action=>"new", :controller=>"comments"} edit_photo_comment GET /photos/:photo_id/comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"} photo_comment GET /photos/:photo_id/comments/:id(.:format) {:action=>"show", :controller=>"comments"} PUT /photos/:photo_id/comments/:id(.:format) {:action=>"update", :controller=>"comments"} DELETE /photos/:photo_id/comments/:id(.:format) {:action=>"destroy", :controller=>"comments"} update_states_photos GET /photos/update_states(.:format) {:action=>"update_states", :controller=>"photos"} upload_photo /photos/:id/upload(.:format) {:action=>"upload", :controller=>"photos"} photos GET /photos(.:format) {:action=>"index", :controller=>"photos"} POST /photos(.:format) {:action=>"create", :controller=>"photos"} new_photo GET /photos/new(.:format) {:action=>"new", :controller=>"photos"} edit_photo GET /photos/:id/edit(.:format) {:action=>"edit", :controller=>"photos"} photo GET /photos/:id(.:format) {:action=>"show", :controller=>"photos"} PUT /photos/:id(.:format) {:action=>"update", :controller=>"photos"} DELETE /photos/:id(.:format) {:action=>"destroy", :controller=>"photos"} Unfortunately 'match' didn't work any better... -- EDIT -- Just to confirm another scenario here... with this in the routes: resources :photos do resources :comments collection do get 'update_states' end member do match 'upload' end end and this in the view: form_for @photo, :remote => true, :url => { :action => 'upload' }, :html => { :multipart => :true, :id => 'photo_upload' } do |f| I still get: No route matches {:action=>"upload", :controller=>"photos"}

    Read the article

  • Can someone explain the true landscape of Rails vs PHP deployment, particularly within the context of Reseller-based web hosting (e.g., Hostgator)?

    - by rcd
    Currently, I have a reseller account with the company HostGator. I design websites, which up until now have occasionally been wrapped in Wordpress CMSs and the like (PHP applications). I then sell hosting (of the site I've designed) to the client, which is pretty simple, in that I can simply click a button and add a new shared hosting account/site with whatever settings I want. Furthermore, I then utilize WHMCS to automate billing and account management. It's a nice package and pretty simple. I pay something like $25 a month, and can sell a hundred accounts under this (because my clients bandwidth requirements are low). Now I am finding the need to develop more customized applications, including a minimalist CMS and several proprietary things. I soon anticipate developing these apps for clients as well. Thus, I've spent the past few months learning Rails, and it's coming along well now. The thing that has nagged at me all along, though, is the deployment issue. I can't wrap my brain around it. It seems like all of the popular options (Heroku, etc) have nice automation with git and are set up in the "Rails Way". I get that (sort of). But it's terribly expensive... a single dyno, a helper, and the cheapest database (which they say is mainly suitable for testing) that isn't limited to 5MB runs $51. This is for ONE app!!! Throw in a "production" DB and you're over $200. This is like... the same prices as getting a server somewhere, right? Meanwhile, going back to what I guess is a "traditional" hosting environment with Hostgator, their server only has Ruby 1.8.7 and Rails 2.3.5... No Rails 3. AND, no Passenger (not that I really understand the difference in CGI or mod_rails or whatever, but they say Passenger is the simplest). So I'm to understand that if I build an app in Rails 3, it won't run at all on this host? But damn, I already have these accounts under my reseller account there, all running static html and/or PHP stuff, right? So what now? How do I get all of this under one simple (and affordable) roof? Forgive my ignorance, but I just don't get it. Managing a VPS is cool and all, but entails learning server admin stuff and security... And it's expensive. I get that a shared and/or reseller "server-based" (forgive the terminology) may be inadequate for large-scale apps that use a lot of bandwidth... But what about for those of us who are building real (but small and low bandwidth) apps (with Rails) and who want to deploy them simply, cheaply, using the same conceptual approach as PHP? Even after learning all of this Ruby and Rails stuff for months, I'm questioning whether it's worth it when it comes to deployment. I want to build a small app, upload it to my home directory on a shared server account, and just make it run. Why should that be so hard? Am I just choosing the wrong language/framework? Forgive my ignorance in the subject; these questions are not rhetorical; just trying to learn here. So: 1) I'd appreciate if someone could give me a good rundown of how to understand deployment in Rails vs. PHP. 2) I'd appreciate if someone could address my issue with running a hosting/web business around reseller hosting (Hostgator) while also being able to host Rails apps. Can it be done? And how can a company like Hostgator completely ignore what's current in Rails/Ruby? Thanks.

    Read the article

  • Mapping Left Alt key in vim?

    - by Yogesh Arora
    I am able to map the key combination Right Alt+Left Arrow with <a-left> or by <m-left>. But I am not able to map the Left Alt key. Is there a way to do that? Edit: Just to clarity <a-left> means Alt+Left Arrow. The important question here is what is difference between Left Alt and Right Alt from the perspective of keymappings in Vim?

    Read the article

  • How to remap a NERDTree shortcut in VIM

    - by btelles
    Hi There, I use the Dvorak keyboard layout with VIM, and the 't' key is the 'up' motion when editing a regular file. The problem is that NERDTree remaps 't' to open files in a new tab. How can I undo that mapping and use 't' for the up motion in NERDTree? Here are the relevant lines from my vimrc file and from the NERDTree plugin. My .vimrc: no t k NERDTree plugin file: exec "nnoremap <silent> <buffer> ". g:NERDTreeMapOpenInTab ." :call <SID>openInNewTab(0)<cr>" call s:initVariable("g:NERDTreeMapOpenInTab", "t") let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"

    Read the article

  • Emulating vim directional key using AutoHotKey

    - by Reza
    Currently I am using following code for changing keyboard layout: //vim.ahk CapsLock::Send, {CTRLDOWN}{SHIFTDOWN}{SHIFTUP}{CTRLUP}{CTRLUP} return !CapsLock::CapsLock CapsLock & j :: Send {Down} CapsLock & k :: Send {Up} CapsLock & h :: Send {Left} CapsLock & l :: Send {right} CapsLock & p :: Send {PGUP} CapsLock & `; :: Send {PGDN} CapsLock & a :: Send {home} CapsLock & e :: Send {end} Is this code stable enough?

    Read the article

  • Vim */dyn support

    - by galymzhan
    What does mean the plus sign before */dyn in the :version command's output, e.g.: +python/dyn +python3/dyn +ruby/dyn +tcl/dyn I didn't find any useful documentation on it. When I run :echo has('python3') Vim returns 0. When I run :python3 print('hi') it says E370: Could not load library python31.dll meaning I should install python (as I understand). So I just can't see the difference between -*/dyn and +*/dyn. What does plus sign give to us? Also what's the difference from dyn-less feature, e.g. +python?

    Read the article

  • Vim's relativenumber setting and multiple buffers

    - by connrs
    I like the relative number setting. I'm refactoring code at the moment (translation: explodicating 5 year old terrible methods and replacing them with nice code) and I find it useful to have the setting active on files as I open them I frequently either open multiple buffers or use a client/server vim to contain all my open buffers/files and have noticed that the relative number only seems to apply to the first buffer (and not the remaining buffers when I have set rnu in my .vimrc file.) Is it expected behaviour for rnu to only initially apply to the first buffer until you manually set it?

    Read the article

  • over Windows terminal change cursor width or color in Vim depending on mode

    - by INTPnerd
    I am using PuTTY to connect over SSH to an Ubuntu server from my Windows 7 workstation. Once connected I am using the Vim installation from the Ubuntu server to edit files. I want the cursor to change when I go into and out of insert mode. Part of my .vimrc file is like this but it is not changing the cursor: if &term =~ "xterm" echo "xTerm!!inate!" let &t_SI = "\<Esc>]12;purple\x7" let &t_EI = "\<Esc>]12;blue\x7" endif I know that the if statement is executing because of the echo. EDIT: Actually I would prefer to change the cursor to be a vertical line like you can in the PuTTY settings rather than change the color, or maybe even do both. But just changing the color would be a lot better than nothing. Also I am willing to change terminals if there is another Windows 7 Professionsal 64 bit compatible terminal that can do this (preferably something free). Maybe Poderosa can do this?

    Read the article

  • Fixing the position of items in vim's statusline

    - by ldigas
    My statusline looks something like this: set statusline+=%m set statusline+=b%n: " set statusline+=%f set statusline+=%F set statusline+=%R set statusline+=%Y set statusline+=\ set statusline+=[ set statusline+=row\ %l/%L set statusline+=,\ " set statusline+=column\ %c\ (%v) set statusline+=column\ %v\ (%c) set statusline+=] which, on an average day, when there is no clouds, gives something like this: [-]b3:options.txt,RO,HELP [row 6291/7778, column 42 (29)] Now, when I go about splitting windows, and opening different files, some of them modified, some of them not, the things in the statusline start to wiggle back and forth, and it annoys me to no end. I saw in vim's help (:help 'statusline) that one can set a fixed width of some items. How would you go about fixing the above items in a way, that if one item is missing, or no matter of its width, that it doesn't affect the other ones ? (i.e. so I can always look at a known position and know what is there ... not move my eyes left and right searching for the thing I need).

    Read the article

  • Problems with vim/locale as non-root user on Solaris

    - by Lyle
    I do some work on a Solaris 10 machine, and my .vimrc is set up to show unicode characters for tabs and line endings: set listchars=tab:?\ ,eol:¬ This works out of the box on my OS X machine. On Linux as well as Solaris I get the following error when I start vim: Error detected while processing /home/lhanson/.vimrc: line 17: E474: Invalid argument: listchars=tab:?~V?\ ,eol:¬ I solved this on my Linux box by setting LANG=en_US.utf8 ('locale -a' shows this as being an option). On Solaris, however, 'locale -a' shows the following: C POSIX iso_8859_1 Setting LANG to C or POSIX yields the same error, and even though iso_8859_1 probably wouldn't work it doesn't successfully change the locale anyway. As a non-root user, is there any way I can have my unicode characters show up?

    Read the article

  • vim NERDTree shortcut to an existing function

    - by Ned Batchelder
    I want to use right-arrow to open a node in NERDtree. I see there is NERDTreeAddKeyMap, but I'm too much of a vimscript newb to know how to invoke it properly. I want right-arrow to invoke activateNode. I've done it by adding this line into NERD_tree.vim itself: exec "nnoremap <silent> <buffer> <Right> :call <SID>activateNode(0)<cr>" but I want to do it the right way in my .vimrc

    Read the article

  • Edit files from Cyberduck in an existing Vim window

    - by Eli Gundry
    I use Cyberduck as my go to FTP client on Windows. I have but one complaint, and that is whenever I click the edit button to edit the remote file with a local version of gVim, it opens in a new window/instance of Vim. This leads to a cluttered desktop as well as not allowing the AutoComplPop to work at it's full potential. What I would like to be able to do is automatically open every file in a new buffer inside of an existing gVim buffer instead of a new window, kind of like the Windows version of gVim and how it has the option to edit a file in a new buffer. Is there anyway to do this in Cyberduck/gVim setting?

    Read the article

  • VIM autocompletion: Making ^X^U expand to longest match

    - by Sarah
    I'm using eclim to bring some eclipse functionality to VIM, however the code completion functions seem to work less than ideal. When I press ctrl+x ctrl+u after, for instance, System.out. with the curser right after the last dot, I get the completion popup-menu. This menu is really rather cumbersome to use, and the functionality that I would ideally want is something like: ctrl+x ctrl+u (expands to longest match) fill in more characters (expand to longest match). Is this possible somehow? I've tried fiddling with the completeopts settings, but they don't seem to do what I want.

    Read the article

  • Vim lint check - only show message if there's an error

    - by GorillaSandwich
    I have this line in my .vimrc, which means "when I save a .rb file, run it through ruby -c" (the ruby interpreter's error checking). autocmd BufWritePost *.rb !ruby -c <afile> When I save that file, I always see output at the bottom of the screen, so I get used to it and start ignoring it. What I want is to only see output if there are errors. I can see that when there are errors, after it says what they are, at the bottom, it says "shell returned 1." How can I modify this line so that it only shows a message if the shell returns 1? Is there a way to conditionally surpress output from a shell command run in vim?

    Read the article

  • bulleted lists for plain-text documents in Vim

    - by AnC
    While Vim supports automatic indenting in lists, the default setting only covers ordered lists, starting with digits: 1. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim 2. veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. I have not been able to figure out how to extend this to unordered, bulleted lists: * Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim * veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Changing the formatlistpat RegEx did not lead to the desired results (indeed, it even broke ordered lists). Any help would be appreciated!

    Read the article

  • include all vim files in a folder

    - by queueoverflow
    For my .bashrc I have a lot of small snippet files in .config/bash, like 10-prompt.sh and so on. In my actual .bashrc, I just have the following: configdir="$HOME/.config/bash" for file in "$configdir"/*.sh do source "$file" done I'd like to do the same for my .vimrc, but I am not that confident in VimL that I could write that. How would the snippet for .vimrc look like that includes all the snippets in a given subfolder? Ideally, I'd like to make a .vim/rc/ folder where I can put my snippets into.

    Read the article

  • vim: highlighting a search term without moving the cursor

    - by ajwood
    Using Vim, I sometimes find myself staring at a section of source code for a while and suddenly want some variable on the screen to pop out. That's easy: /<var> which highlights them all. My issue is that it more often than not the search shifts my window so I'm not looking at the source code from the same place. Even if it's only shifted a few lines, it's still throws me off since I need to take a few seconds to figure out where things have moved to. Is it possible to highlight a search term without moving the cursor to the next match?

    Read the article

  • How to columnate text with tabs (in vim or on the shell)

    - by kine
    I have a frequent need to manually manipulate tab-delimited text for data entry and other purposes, and when i do this it helps if the text is aligned properly into columns. For example (assuming 4-space tabs): # original format abcdefghijklmnop field2 abcdefgh field2 abcdefghijkl field2 # ideal format abcdefghijklmnop field2 abcdefgh field2 abcdefghijkl field2 I am very familiar with using the column utility to columnate text this way, but the problem is that it uses spaces to align the columns, and i specifically need tabs. This requirement also appears to rule out the Tabularize plug-in. Is there any way that i can columnate text with tabs specifically, either within vim or at the shell? It looks like i might be able to do it with groff/tbl, but honestly i'd rather columnate it by hand than mess with that....

    Read the article

  • Vim: I don't want to insert!!!

    - by bhh1988
    I could not find anything online addressing this problem, which is surprising. The problem is that I find it very easy to accidentally insert stuff in Vim. I know I can undo by with 'u', but it still is quite annoying and frequent. Often, I enter a command like 'sp file.txt' without realizing that I haven't entered the ':' character yet (so I'm not yet on the command line). Unfortunately, there are several characters that take you to insert mode, including 's', 'a', 'i', 'o'. I'd rather have insert mode mapped to just one keybinding which is very deliberate, like shift-space. Can anyone point me to something that might have what I'm looking for? Thanks.

    Read the article

  • Vim - select text highlighted by search?

    - by GorillaSandwich
    In vim, I often perform searches to hop to a word or phrase instead of navigating there with h/j/k/l. Then I hit n to hop between occurrences. Say I've got this text: Time flies like an arrow; fruit flies like a banana. - Groucho Marx I type /an arrow and hit enter. That phrase is highlighted, and I jump to it. Now I want to visually select that text, maybe to change it or delete it. (Yes, I'm aware of the :s substitution command.) Since my cursor is at the letter "a" at the beginning of "an arrow," I can hit v, then press e a couple of times to highlight the entire phrase. But I have a feeling there's a shorter and more semantic way. After all, I've already specified the text I'm interested in. How might I compose a command to say "visually select the current search selection?"

    Read the article

  • Misbehavior in regular expression in VIM

    - by poissonbreaker
    I am having a problem with a regular expression on vim. I have a pattern as follows: http:\/\/\(\w\+\.\?\)\+ [matches http://(AS MANY WORDS FOLLOWED BY DOT OR NOT ENCOUNTERS) e.g. http://wd1.wd2.com] I have a text as follows: http://wd1.wd2.com/wd3 I am trying to make this substitution on it: s/\(http:\/\/\)\(\w\+\.\?\)\+/\1wd4.wd5.com and the result is http://wd4.wd5.com /wd3 (Notice the white space inserted at the end of the replacement) How can I avoid having this inserted space? I am afraid is a bug in the regexp engine but I am not sure.

    Read the article

  • Multiple Rails apps on same subdomain?

    - by Derek
    I recently decided to try out Rails. When working with PHP, I simply had all of my PHP projects in the same directory. For example, I may have http://ubuntu/app1, http://ubuntu/app2, etc. I created a subdomain for Rails (http://ruby.ubuntu), installed Rails and Passenger and everything is working. However, I may be wrong, but it looks like I can only have one Rails app per subdomain? My VirtualHost is as follows: <VirtualHost *:80> ServerName ruby.ubuntu ServerAdmin webmaster@localhost DocumentRoot /var/www/ruby/blog/public <Directory /var/www/ruby/blog/public> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all RailsEnv development </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> All of my PHP and misc. files are stored in /var/www/main. I want to be able to store all of my Rails apps in /var/www/ruby. I tried changing DocumentRoot to /var/www/ruby, but I don't think it's as simple as that. When I browse to a Rails app's Welcome Aboard page and click on "About my application's environment," I get a 404 page, but when the DocumentRoot is set to the public directory, I get the expected result. I don't want to have to create a new subdomain every time I create a new project. Is there any way I can make it so I can store all of my apps in /var/www/ruby, and browsing to http://ruby.ubuntu will let me access all of my Rails apps there? That way if I want to create a new app, all I have to do is rails new app, no Apache .htaccess or VirtualHost configuration required.

    Read the article

  • Splitting up a Rails/Ruby app onto multiple servers

    - by craig.kaminsky
    We recently moved a large application to two machines, both running the same codebase. I. Machine A Web server for public facing application Receives web hook call backs from our ESP Handles a few large, list-processing jobs (uploaded spreadsheets with data) II. Machine B Manages a massive set of (background) jobs but, primarily, focuses on building and assembling newsletters Runs all integration with our NetSuite platform Runs all system maintenance (read: DB) jobs To me, having these two apps running the same codebase (a large, monolithic Rails application) seems 'wrong'. I am wondering if anyone has advice on how to better break up the code for these two apps. While they both need the same DB and, ultimately, the same model code, Machine B has no need for Controllers and Views and it feels wasteful running a full-stack Rails app for its tasks. A couple things came to mind but I'm not sure if I'm trying to solve a problem that doesn't exist: Break the models out into a sub-module on git and include into both apps Build out the Mahcine B app in plain Ruby or a lighter framework like Sinatra (where I could use ActiveRecord with Sinatra in combo with a sub-module for the model folder). I'm new to this scenario and appreciate any and all feedback or direction! Thank you.

    Read the article

  • Error whilst starting rails server

    - by Sajeer
    I am new to rails and the bundle install works fine for the project. but when I start the rails server errors are shown.The shown errors are attached herewith. Exiting C:/Ruby193/lib/ruby/1.9.1/psych.rb:203:in `parse': (): could not find e xpected ':' while scanning a simple key at line 27 column 3 (Psych::SyntaxError) from C:/Ruby193/lib/ruby/1.9.1/psych.rb:203:in `parse_stream' from C:/Ruby193/lib/ruby/1.9.1/psych.rb:151:in `parse' from C:/Ruby193/lib/ruby/1.9.1/psych.rb:127:in `load' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/applic ation/configuration.rb:115:in database_configuration' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.2/lib/active_r ecord/railtie.rb:75:inblock (2 levels) in ' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.2/lib/active_ support/lazy_load_hooks.rb:36:in instance_eval' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.2/lib/active_ support/lazy_load_hooks.rb:36:inexecute_hook' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.2/lib/active_ support/lazy_load_hooks.rb:26:in on_load' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.2/lib/active_r ecord/railtie.rb:74:inblock in ' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/initia lizable.rb:30:in instance_exec' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/initia lizable.rb:30:inrun' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/initia lizable.rb:55:in block in run_initializers' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/initia lizable.rb:54:ineach' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/initia lizable.rb:54:in run_initializers' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/applic ation.rb:136:ininitialize!' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/railti e/configurable.rb:30:in method_missing' from D:/ROR/appmallserver/config/environment.rb:22:in' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.2/lib/active_ support/dependencies.rb:251:in require' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.2/lib/active_ support/dependencies.rb:251:inblock in require' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.2/lib/active_ support/dependencies.rb:236:in load_dependency' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.2/lib/active_ support/dependencies.rb:251:inrequire' from D:/ROR/appmallserver/config.ru:4:in block in <main>' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb: 51:ininstance_eval' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb: 51:in initialize' from D:/ROR/appmallserver/config.ru:1:innew' from D:/ROR/appmallserver/config.ru:1:in <main>' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb: 40:ineval' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb: 40:in parse_file' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:2 00:inapp' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/comman ds/server.rb:46:in app' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:3 01:inwrapped_app' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:2 52:in start' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/comman ds/server.rb:70:instart' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/comman ds.rb:55:in block in <top (required)>' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/comman ds.rb:50:intap' from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.2/lib/rails/comman ds.rb:50:in <top (required)>' from script/rails:21:inrequire' from script/rails:21:in `'

    Read the article

  • Rails: The Law of Demeter [duplicate]

    - by user2158382
    This question already has an answer here: Rails: Law of Demeter Confusion 4 answers I am reading a book called Rails AntiPatterns and they talk about using delegation to to avoid breaking the Law of Demeter. Here is their prime example: They believe that calling something like this in the controller is bad (and I agree) @street = @invoice.customer.address.street Their proposed solution is to do the following: class Customer has_one :address belongs_to :invoice def street address.street end end class Invoice has_one :customer def customer_street customer.street end end @street = @invoice.customer_street They are stating that since you only use one dot, you are not breaking the Law of Demeter here. I think this is incorrect, because you are still going through customer to go through address to get the invoice's street. I primarily got this idea from a blog post I read: http://www.dan-manges.com/blog/37 In the blog post the prime example is class Wallet attr_accessor :cash end class Customer has_one :wallet # attribute delegation def cash @wallet.cash end end class Paperboy def collect_money(customer, due_amount) if customer.cash < due_ammount raise InsufficientFundsError else customer.cash -= due_amount @collected_amount += due_amount end end end The blog post states that although there is only one dot customer.cash instead of customer.wallet.cash, this code still violates the Law of Demeter. Now in the Paperboy collect_money method, we don't have two dots, we just have one in "customer.cash". Has this delegation solved our problem? Not at all. If we look at the behavior, a paperboy is still reaching directly into a customer's wallet to get cash out. EDIT I completely understand and agree that this is still a violation and I need to create a method in Wallet called withdraw that handles the payment for me and that I should call that method inside the Customer class. What I don't get is that according to this process, my first example still violates the Law of Demeter because Invoice is still reaching directly into Customer to get the street. Can somebody help me clear the confusion. I have been searching for the past 2 days trying to let this topic sink in, but it is still confusing.

    Read the article

< Previous Page | 15 16 17 18 19 20 21 22 23 24 25 26  | Next Page >