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5f64fd0a21
Introduce new patterns for direct sql that are safe and fast. MiniSql is not prone to memory bloat that can happen with direct PG usage. It also has an extremely fast materializer and very a convenient API - DB.exec(sql, *params) => runs sql returns row count - DB.query(sql, *params) => runs sql returns usable objects (not a hash) - DB.query_hash(sql, *params) => runs sql returns an array of hashes - DB.query_single(sql, *params) => runs sql and returns a flat one dimensional array - DB.build(sql) => returns a sql builder See more at: https://github.com/discourse/mini_sql
35 lines
1.4 KiB
Ruby
35 lines
1.4 KiB
Ruby
class AddMetaCategory < ActiveRecord::Migration[4.2]
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def up
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return if Rails.env.test?
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I18n.overrides_disabled do
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result = DB.exec "SELECT 1 FROM site_settings where name = 'meta_category_id'"
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if result == 0
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description = I18n.t('meta_category_description')
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name = I18n.t('meta_category_name')
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if DB.exec("SELECT 1 FROM categories where name ilike :name", name: name) == 0
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result = DB.query_single "INSERT INTO categories
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(name, color, text_color, created_at, updated_at, user_id, slug, description, read_restricted, position)
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VALUES (:name, '808281', 'FFFFFF', now(), now(), -1, :slug, :description, true, 1)
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RETURNING id", name: name, slug: '', description: description
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category_id = result.first.to_i
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DB.exec "UPDATE categories SET slug=:slug WHERE id=:category_id",
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slug: Slug.for(name, "#{category_id}-category"), category_id: category_id
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execute "INSERT INTO site_settings(name, data_type, value, created_at, updated_at)
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VALUES ('meta_category_id', 3, #{category_id}, now(), now())"
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end
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end
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end
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end
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def down
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# Don't reverse this change. There is so much logic around deleting a category that it's messy
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# to try to do in sql. The up method will just make sure never to create the category twice.
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end
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end
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