69 lines
1.2 KiB
Markdown
69 lines
1.2 KiB
Markdown
---
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title: Rails tricks
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category: Rails
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tags: [Archived]
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archived: This sheet may describe practices that might be outdated.
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---
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### Sass source maps
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in config/environments/development.rb:
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# Source maps for Sass
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config.sass.debug_info = true
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config.sass.line_comments = false
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# Don't break apart
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config.assets.debug = false
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### Partial locals
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<%= render 'article', full: true %>
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<%= render 'article' %>
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<% if local_assigns[:full] %>
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...
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<% end %>
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### HTML in i18n
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en:
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read_more_html: "read <b>more</b>..."
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### Exception handling
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# config/application.rb
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config.exceptions_app = self.routes
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get '/404', to: 'errors#not_found'
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get '/500', to: 'errors#server_error'
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class ErrorsController
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def not_found
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render status: :not_found
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end
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end
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### Rails updating
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rake rails:update
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### Distinct pluck
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Article.distinct.pluck('author')
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### Relation#merge
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scope :with_drafts, -> {
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uniq.joins(:articles).merge(Article.draft)
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}
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### Order
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scope :recent, -> { order created_at: :desc }
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### Group by month
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.group("to_char(created_at, 'YYYY-MM')")
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.group("to_char(created_at, 'YYYY-MM')").count
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