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n350071🇯🇵

Ruby Web Developer. Freelancer. Tokyo.

Education

Tsukuba University

changing code by the version of gem

changing code by the version of gem

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1 min read

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preload, eager_load, includes, joins

preload, eager_load, includes, joins

4
Comments
1 min read
CSS fix scroll

CSS fix scroll

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1 min read
Rails where('n > ?', m) without sql

Rails where('n > ?', m) without sql

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Comments 1
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🐳<docker, mysql, rails> error: 'Plugin caching_sha2_password could not be loaded' when run 'db:create'

🐳<docker, mysql, rails> error: 'Plugin caching_sha2_password could not be loaded' when run 'db:create'

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When Rails in Docker goes to down...

When Rails in Docker goes to down...

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When rails db:migrate error has occurred because I'd tried it several times.

When rails db:migrate error has occurred because I'd tried it several times.

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1 min read
2ways for making nested form in Rails

2ways for making nested form in Rails

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`rbenv install -l`. How can I update it?

`rbenv install -l`. How can I update it?

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Using if condition in yml for rails

Using if condition in yml for rails

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Data transfer with Migration (マイグレーション中のデータ移行)

Data transfer with Migration (マイグレーション中のデータ移行)

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Rails db:migrate show alter SQL

Rails db:migrate show alter SQL

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[Rails] Getting polymorphic models with human name for view

[Rails] Getting polymorphic models with human name for view

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Rails I18n model name with namespace

Rails I18n model name with namespace

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Comments
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Google Chrome Restart Command

Google Chrome Restart Command

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Singleton module (Singleton class)

Singleton module (Singleton class)

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How to git add the only modified files, not the untracked files

How to git add the only modified files, not the untracked files

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Rails where AND, OR

Rails where AND, OR

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debug Dockerfile

debug Dockerfile

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Two ways of grouping a dataset

Two ways of grouping a dataset

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The way better than 'string'.truncate(3) in Rails, If it's responsive website.

The way better than 'string'.truncate(3) in Rails, If it's responsive website.

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Refactor code doesn't look like Ruby

Refactor code doesn't look like Ruby

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Comments 2
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When your docker-compose build outs error, try it with --no-cache option.

When your docker-compose build outs error, try it with --no-cache option.

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1 min read
pass a block to parent Controller in Rails

pass a block to parent Controller in Rails

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binstubs is always generated when I run bundle install

binstubs is always generated when I run bundle install

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2 min read
rails with spring on direnv

rails with spring on direnv

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Comments 2
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bit operation in the wild

bit operation in the wild

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rails query

rails query

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git clone a repository to multi directories

git clone a repository to multi directories

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.all? method of Enumerable for Array, Hash in Ruby is awesome!

.all? method of Enumerable for Array, Hash in Ruby is awesome!

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How to localize f.label by i18n in Rails (日本語化)

How to localize f.label by i18n in Rails (日本語化)

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Dynamic view with STI in Rails

Dynamic view with STI in Rails

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Customize View of Devise

Customize View of Devise

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Data Migration in Active Storage after changing the Model name

Data Migration in Active Storage after changing the Model name

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Override the included gem method by using hock.

Override the included gem method by using hock.

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rails credentials -e in Docker

rails credentials -e in Docker

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(pry) output error: #<ActionController::UnfilteredParameters: unable to convert unpermitted parameters to hash>

(pry) output error: #<ActionController::UnfilteredParameters: unable to convert unpermitted parameters to hash>

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[Heroku] No app specified. 😅 how to omit -a, --a option

[Heroku] No app specified. 😅 how to omit -a, --a option

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extract_credentials_provider': Cannot load `Rails.config.active_storage.service`: (Aws::Sigv4::Errors::MissingCredentialsError)

extract_credentials_provider': Cannot load `Rails.config.active_storage.service`: (Aws::Sigv4::Errors::MissingCredentialsError)

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Heroku CLI for Rails

Heroku CLI for Rails

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[Capybara] Debug for random error

[Capybara] Debug for random error

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[Capybara] find('input').set will have not done!

[Capybara] find('input').set will have not done!

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Pass data from Rails to JS

Pass data from Rails to JS

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Overwrite a gem method by inserting a module in your inheritance chain

Overwrite a gem method by inserting a module in your inheritance chain

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How to write save and save! (bang! in Rails)

How to write save and save! (bang! in Rails)

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[Devise] Arbitrary Routing (任意のルーティング)

[Devise] Arbitrary Routing (任意のルーティング)

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[Ruby] heredocument (ヒアドキュメント)

[Ruby] heredocument (ヒアドキュメント)

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[Ruby] Awesome methods

[Ruby] Awesome methods

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[RSpec] for helper

[RSpec] for helper

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[RSpec] for ApplicationController

[RSpec] for ApplicationController

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[Git] git ignores .gitignore

[Git] git ignores .gitignore

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A trap point at "push your rails app to Heroku which uses mysql"

A trap point at "push your rails app to Heroku which uses mysql"

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[RSpec] shared_context

[RSpec] shared_context

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[RSpec] What does assigns mean in RSpec?

[RSpec] What does assigns mean in RSpec?

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[RSpec] Factorybot transient & trait with argument

[RSpec] Factorybot transient & trait with argument

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View & Helper Tips Note

View & Helper Tips Note

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the eval meta programming power. Making .env file and Set Constant values from the file

the eval meta programming power. Making .env file and Set Constant values from the file

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path resolves

path resolves

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Return a static error page by Rails standard function

Return a static error page by Rails standard function

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Ruby array multiple assignment

Ruby array multiple assignment

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