All Questions
3,066
questions
4
votes
1
answer
1k
views
error: call to undeclared function 'mysql_ssl_set'; ISO C99 and later do not support implicit function declarations
I'm trying to gem install mysql2
~/s/r/railties> gem install mysql2
Fetching mysql2-0.5.6.gem
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: ...
- 8,962
3
votes
1
answer
2k
views
client.c:178:24: error: call to undeclared function 'rb_tainted_str_new2'; ISO C99 and later do not support implicit function declarations
I was trying to install mysql2 gem on macOS Sonoma 14.2.1 and first got the error:
> gem install mysql2
...
ld: library 'zstd' not found
...
Then:
> gem install mysql2 -- --with-ldflags=-L(brew ...
- 8,962
0
votes
0
answers
42
views
MySQL - Select the maximum from a column based on an association
I am working with Rails 6.1.7 and attempting to write this with Arel. In this situation, I have 2 models, that have a polymorphic relationship to each other. Model A has_many associated Model B ...
- 13
0
votes
0
answers
148
views
MySQL - How to generate a hashing password with salt in caching_sha2_password format
In MySQL 5.7, I used to create a hashing password in Ruby by
def generate_mysql_password(plaintext_password)
digest = OpenSSL::Digest.new('sha1', OpenSSL::Digest.new('sha1', plaintext_password)....
0
votes
0
answers
223
views
Cant install Mysql2 Gem::Ext::BuildError: ERROR: Failed to build gem native extension
Im using ruby '2.7.5' and rails '6.0.4.7' on WSL2
I'm trying to install the mysql2 gem but I keep getting the following error:
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
...
-2
votes
1
answer
157
views
Connecting to a MySQL Docker Container from Rails
I've provided my docker-compose and database config files below. I'm trying to connect my rails app to a containerized mysql instance.
# docker-compose.yml
version: '3'
services:
db:
image: ...
- 746
0
votes
0
answers
38
views
how to find missing indices in mysql using rspec? [duplicate]
I need to identify missing indices in mysql before deploy to production. For example, analyze rspec test.
My stack:
sinatra
sequel gem
mysql
It is preferable ORM-agnostic solution or for sequel ORM
...
- 19.3k
0
votes
1
answer
47
views
MYSQL Weird behaviour in grouping
I have transactions table with a description column. While testing, I observed an unusual behaviour.
There were not completely similar descriptions "Circle K Skövde" and "Circle K ...
- 163
-1
votes
1
answer
89
views
docker container connect with remote mysql DB
i have a ruby script inside a docker container, normally this script (without container) is connected with a remote online mysql DB, but when i dockerize it connection with this DB doesn't work.
i ...
0
votes
0
answers
77
views
MySQL gem Failed to Build: Ruby(1.8.7) Rails(2.0.2)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension
Running bundle install display that error above.
This project has an old version of ruby(1.8.7) and rails(2.0.2).
...
- 61
1
vote
2
answers
883
views
Library not loaded libmysqlclient, macOS Sonoma
ruby 2.5.1
macOS Sonoma Beta
Run
rails server
Error
/.rvm/gems/ruby-2.5.1/gems/mysql2-0.5.3/lib/mysql2/mysql2.bundle, 0x0009): Library not loaded: /usr/local/opt/mysql/lib/libmysqlclient.21.dylib (...
- 161
0
votes
0
answers
39
views
jsonapi-resources: MySQL Error - 0.10.x, 0.11.0.beta2, Ruby on Rails
Jsonapi-resources: MySQL Error - 0.10.x, 0.11.0.beta2
Rails: 7.0.8
mysql2: 0.5.5
jsonapi-resources: 0.10.x, 0.11.0.beta2
We tried to implement jsonapi-resources into our project with MySQL DB. ...
0
votes
1
answer
243
views
Extracting RAW SQL from Rails Migration file
In Rails Migration, I have to extract RAW SQL from rails migration file without migrating.
This is sample conversion:
In rails migrations:
# 20230918004257_add_some_column_to_table.rb
class ...
- 893
0
votes
1
answer
287
views
Ruby on Rails - Mysql2::Error: The client was disconnected by the server because of inactivity
I have upgraded my Ruby on Rails project Ruby version to 3.0.6 from 2.5.8. My Ruby on Rails version is 6.1.7.6. After I upgraded the Ruby version, now I get a lot of following errors while using Rails ...
- 821
0
votes
0
answers
21
views
Unable to setup Ruby on Rails localhost on my system [duplicate]
Working on Ruby on Rails : I have set up my local, Localhost:3000 but its not working, on debugging it shows 'performance_schema.session_variable' not found .. Issue is, I have never set up any such ...
- 41