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    My form submitted twice, after double checked, it was cause by ':remote=>true'. I removed it, my project works well. ... ="Add"> </p> </form> See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm using the imagesize gem to check the sizes of remote images and then only push images that are big enough ... and faster ways to do this? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    This is the code I'm using to connect to the SSL site. require 'mechanize' a = Mechanize.new page = a. ... only getting this error on Windows ? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When I run rake db:migrate I get following output: == 20141219011612 CreatePost: migrating ================== ... file I don't have post table. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to create schema.sql instead of schema.rb. After googling around I found that it can be done by ... am missing or assuming wrong ? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a form with input fields/labels etc. How do I get the error message to show up next to the field? instead ... .each do |msg| %li = msg See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a site in rails and want to have site-wide settings. One part of my app can notify the admin by SMS ... use that? What should I do here? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    when I do this ip = request.env["REMOTE_ADDR"] I get the client's IP address it it. But what if I want to ... .. EDIT What about IPv6 IP's?? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When a user submits a form and leaves certain fields blank, they get saved as blank in the DB. I would like to ... " c = nil end end Thanks. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have two array I need to merge, and using the Union (|) operator is PAINFULLY slow.. are there any ... Union operator appears to take forever See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    In my Ruby on Rails application I have a database structure like this: Project.create(:group => "1", :date ... this. Thanks for any help. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have setup this HABTM relationship in the past and it has worked before....Now it isn't and I'm at ... 'm definitely going bald from this lol See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is there a way to run bundle update in pretend mode, similar to the -p (pretend) flag for Rails generators or cap's - ... : ... list of gems ... See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have 2 hashes, for example: {'a' => 30, 'b' => 14} {'a' => 4, 'b' => 23, 'c' => 7} where a, b and c are ... {'a' => 34, 'b' => 37, 'c' => 7} See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm confused with the devise gem config settings: # The time the user will be remembered without asking for ... I'm missing something here. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    is it possible to add html-content inside a link_to helper in HAML? i tried this, but all i get is a syntax error ... ="icon">Arrow</span></a> See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm using Rails 5, and Devise 3.5.1. Going through a nice (older) book about creating/testing an API, ... project What did I miss here? Thanks See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    If I use a migration to update a database, and I add an integer field like this: t.integer :foo :default ... the difference between the two... See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to display the filename of a Carrierwave attachment in a Rails erb template. The following does ... %w(pdf) end end See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    How to pass query params and headers in post method using HTTparty. I am doing as follows But it throws ... header.rb:164:in `each_capitalized' See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    image_tag isn't using the asset_host I've set. Any ideas why? The only thing I can think of is it having to ... will be showing up in an email. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    The question I'm really asking is why require does not take the name of the gem. Also, In the case ... require 'rubygems' require 'memcache' See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    How to check if a variable is a number or a string in Ruby? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've downloaded a theme through wrapbootstrap but cannot figure out how to implement it. I assumed it was ... this bootstrap theme? Thank you See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is there anyway to go up the DOM tree from the html_tag element passed in? ActionView::Base.field_error_proc = ... , read the solutions below. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I often need to clone production data to investigate bugs. Even with a trivial database size heroku db:pull ... would also be appreciated. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have saved stripe customer id's in my db for later payments. A customer will have multiple cards and I would ... it will create a new card. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am wondering if anyone has any plugins or capistrano recipes that will "pre-heat" the page cache for a ... priority) does it already exist? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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