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How do you write a migration to rename an ActiveRecord model and its table in Rails?
...tion file manually.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_name, :new_table_name
end
end
(You s...
Yank file name / path of current buffer in Vim
..., in particular if you need the directory without filename - stackoverflow.com/a/2233924/1882064
– arcseldon
Oct 30 '17 at 22:39
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How to add a custom HTTP header to every WCF call?
...ind?
Update: I found this list of WCF features that are supported by the compact framework. I believe message inspectors classified as 'Channel Extensibility' which, according to this post, are supported by the compact framework.
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Are class names in CSS selectors case sensitive?
...hich have no semantics associated with them), or because it's difficult to come up with a usable syntax.
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Targeting only Firefox with CSS
Using conditional comments it is easy to target Internet Explorer with browser-specific CSS rules:
11 Answers
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CSS @font-face not working with Firefox, but working with Chrome and IE
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LOCALLY RUNNING THE SITE (file:///)
Firefox comes with a very strict "file uri origin" (file:///) policy by default: to have it to behave just as other browsers, go to about:config, filter by fileuri and toggle the following preference:
security.fileuri.strict_origin_...
Font-awesome, input type 'submit'
...en <button type=submit> and <input type=submit>: stackoverflow.com/questions/3543615/…
– Pavlo
Aug 28 '12 at 9:07
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Git status shows files as changed even though contents are the same
I received a git checkout from someone else and am trying to commit the unstaged changes to the local repository. However, a lot (if not every) file appears as modified even though the contents are exactly the same.
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Google Docs/Drive - number the headings
...he actual add-on is helpful. I'm guessing you mean this one: chrome.google.com/webstore/detail/table-of-contents/…
– nealmcb
Mar 18 '19 at 15:18
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When to add what indexes in a table in Rails
...s this different from adding the index for each key?
Then the index is a combined index of the two columns. That doesn't make any sense, unless you want all entries for one category_id AND one state_id (It should be category_id not category) at the same time.
An Index like this would speed the f...