Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged ruby
0
votes
683
views
1
answer
ruby on rails - Scaffolding ActiveRecord: two columns of the same data type
Another basic Rails question: I have a database table that needs to contain references to exactly two different ... anywhere on the Internet. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
847
views
1
answer
ruby on rails 3 - Params hash keys as symbols vs strings
<%= params[:action] %> and <%= params['action'] %> display index but what is the difference between this syntax? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
697
views
1
answer
ruby - Why does .all? return true on an empty array?
Using Ruby I want to evaluate all items in an array, and return true if they all pass a conditional test. I ... how should I modify the method? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
684
views
1
answer
ruby - Command for displaying a gem's dependencies?
Is there a command that tells you the other gems that a gem depends on? Also, is there a way to auto install the gem's dependencies? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
593
views
1
answer
ruby - Is it possible to give a sub-module the same name as a top-level class?
Background: ruby thinks I'm referencing a top-level constant even when I specify the full namespace How do I ... `require' from runner.rb:2 See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
713
views
1
answer
ruby on rails - How can I reset a factory_girl sequence?
Provided that I have a project factory Factory.define :project do |p| p.sequence(:title) { |n| "project # ... ) Thanks in advance, Best regards. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
831
views
1
answer
ruby - What is difference between "p" and "pp"?
I did do some searching, but can't find an answer to simple question. What is difference between p and pp ... that what are the differences? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
783
views
1
answer
ruby on rails - first_or_create vs find_or_create_by
first_or_create seems much less documented, so I wondered if it was just because the two methods are synonymous. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
769
views
1
answer
ruby - Rspec: Should be (this or that)
What would be the best way to write the rspec in a situation where either of two (or more) outcomes are ... was hoping for a better solution. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
984
views
1
answer
ruby - How do you mark a Cucumber Scenario as Pending
How do I mark a cucumber scenario as pending so it doesn't get counted as a passed? Scenario: Guest should not ... able to mark is as pending? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
828
views
1
answer
ruby on rails - Could not find thread_safe-0.3.0 in any of the sources
I get this error while running bundle install in a rails app, I thought the latest version is 0.2.0...could ... .3.0 in any of the sources See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
748
views
1
answer
ruby - Upload images in database
I want save uploaded images in a bytea column in my PostgreSQL database. I'm looking for advice on how to ... driver to connect to PostgreSQL. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
767
views
1
answer
ruby - rails server cannot start; getaddrinfo: nodename nor servname provided, or not known (SocketError)
I have not found a solution to the problem, however someone did already ask about the same problem a few days ago ... :in `<main>' Please help. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
708
views
1
answer
ruby on rails - How to make ActiveRecord ThreadSafe
How can I make the following controller threadsafe in rails 4 with postgresql: def controller_action if Model.exists( ... I only want 1. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
975
views
1
answer
ruby - Make Rails ignore daylight saving time when displaying a date
I have a date stored in UTC in my Rails app and am trying to display it to a user who has "Eastern Time ... Eastern Time (US & Canada)").no_dst See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
949
views
1
answer
ruby on rails - Errno::EACCES: Permission denied @ unlink_internal when running rake test:models
I'm playing with rails 4. I just created very simple test for my model but when I try to execute "rake ... could be source of this problem? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
769
views
1
answer
ruby on rails 3 - How can I make carrierwave not save the original file after versions are processed?
I'm using CarrierWave for my file uploads in Rails 3.1, and I'm looking for a way to save server space. ... the uploader class? Thanks, --Mark See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
736
views
1
answer
ruby on rails - Why am I getting this Passenger error Could not find rake-0.9.2.2 in any of the sources?
I just created a new empty Rails app, it's almost empty. I created it just to try to pinpoint the problem, ... bundler gem and the other ones. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
516
views
1
answer
ruby on rails 3 - ActiveRecord query changing when a dot/period is in condition value
See the updates at the bottom. I've narrowed this down significantly. I've also created a barebones app ... value of a WHERE condition. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
651
views
1
answer
ruby - How do I summarize array of integers as an array of ranges?
I'd like to take input such as: [1,2,4,5,6,7,9,13] and turn it into something like the following: ... sub-array represents a range of integers. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
775
views
1
answer
ruby on rails - How to make LIKE clause case-insensitive?
I'm using a LIKE clause in Ruby On Rails. When I try to search for records by typing "more" it doesn't return ... %", "%#{params[:search]}%") See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
744
views
1
answer
ruby - Rails 3 Order By Count on has_many :through
I have an application where I can list Items and add tags to each Item. The models Items and Tags are associated ... can I do that? Regards. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
702
views
1
answer
ruby on rails - Escaping </script> tag inside javascript
I'm using backbone, and the general way for passing the collections when the page load is window.router = new Routers. ... ); //]]> </script> See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
657
views
1
answer
ruby - How do I find .index of a multidimensional array
Tried web resources and didnt have any luck and my visual quick start guide. If I have my 2d/ ... solving my little maze problem See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
673
views
1
answer
ruby and accdb (ms access)
If I have a base windows xp system, ruby and an ms access 2007 file (say c:/foo/bar.accdb) file, ... . What is the specific connection string. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
857
views
1
answer
ruby on rails - Devise ignoring custom strategy
This is just plain weird. I've got Rails 3 RC running with Devise installed. I've defined a custom strategy ... good way to debug Devise/Warden? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
923
views
1
answer
ruby on rails - turbolinks issues with bootstrap modal
I doing a modal like this: Link that shows the modal: <%= link_to "vers?o resumida", resumed_rep_life_animal_path( ... ... Thanks in advance. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
780
views
1
answer
ruby - How can I fix an accidental 'sudo bundle install dir_name'?
I accidentally ran sudo bundle install smtp_mail and now all my gems are in this directory called smtp_mail inside my ... way I can revert back? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
Page:
« prev
1
...
13
14
15
16
17
18
19
20
21
22
23
...
121
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] SpringBoot多模块打包,程序包com.abbott.common.controller不存在
[2] js数组中每一个对象都添加一个属性'id',id唯一且是number类型
[3] When a 64bit int is cast to 64bit float in C/C++ and doesn't have an exact match, will it always land on a non-fractional number?
[4] android - Datepicker: How to popup datepicker when click on edittext
[5] vue-router刷新页面,query传参时参数的类型变了
[6] git bash中执行npm run dev提示node不可用
[7] computer vision - Rbind numpy arrays in for cycle
[8] 一个程序是如何访问另一个程序的内存地址的?
[9] git - Github Bot to Backmerge With Main
[10] css - Align child elements of different blocks
2.1m
questions
2.1m
answers
60
comments
57.0k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...