I found the rails console and learned that you can do blackmagic such as: DB.exec(<<~SQL) UPDATE topics SET title = 'psql redo!' WHERE id = 886 SQL How do I find out what commands/functions can be executed in the console? How do I learn more about this wizardry? Note: if not already obvious…

You really need to learn about rails and not directly modify that database. What I did was find a rails book and read it. And at some point I also looked at a Ruby book. I’m old enough to remember when books were the only way to learn about computers. As I understand it, there are many sites on the …

Rails console speaks ruby. As Discourse is open source, you can learn low level programming it by reading the source code in GitHub.

t=Topic.find(123) t.title=‘my new title’ t.save or t.update(title: ‘my new title’) Thanks. One thing I couldn’t figue out was how to assign a value with a value pulled from somewhere e.g. t.update(title: topic2.find(123).title)

You could do something like: t = Topic.find(123) t.update(title: Topic.find(124).title) But that’s more trouble than it’s worth. You can do things in steps: t1 = Topic.find(123) t2 = Topic.find(124) t1.update(title: t2.title)

[صورة] Jay Pfaffman: What I did was find a rails book and read it. Me too: About this Book :: Why's (Poignant) Guide to Ruby

[صورة] simon: t1 = Topic.find(123) Although this could easily cause an exception (which you are advised to rescue), so you might want to use find_by as an alternative which will return nil rather than raising an exception, depending on how you want to manage things.

Man. I always thought RoR was a relic from the noughties, I never imagined finding myself learning this! :slight_smile:

Sql is a relic from the 1960s. :stuck_out_tongue_winking_eye:

I’m actually using AI to write SQL queries. It can do it way faster than me!

أوامر كونسول Rails

مطور

thoka (Thomas Kalka) 24 مارس 2024، 6:12ص 3

وحدة تحكم Rails تتحدث لغة روبي.

بما أن Discourse مفتوح المصدر، يمكنك تعلم البرمجة منخفضة المستوى من خلال قراءة الكود المصدري على GitHub.

إعجاب واحد (1)

الموضوع		الردود	مرات العرض
Ruby on rails console command Development rails-console	1	1066	5 مايو 2020
Running raw SQL in rails console Development	2	3019	19 مارس 2019
Adding bulk categories Support	5	938	26 أغسطس 2020
Writing directly to the database Development	17	486	24 مارس 2024
Setting a category to use the solved plugin via console Development	3	1012	31 يناير 2019

أوامر كونسول Rails

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