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Rails auto-assigning id that already exists
... is only used once.
The simplest solution is to set the sequence for your company.id column to the highest value in the table with a query like this:
SELECT setval('company_id_seq', (SELECT max(id) FROM company));
I am guessing at your sequence name "company_id_seq", table name "company", and co...
Determine if ActiveRecord Object is New
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Postgres: Distinct but only for one column
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edited Jun 20 at 9:12
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answered Jun 4 '13 at 12:36
Clodoaldo NetoClodoa...
Using Core Data, iCloud and CloudKit for syncing and backup and how it works together
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It's like this:
Core Data on its own, is completely local and does not automatically work with any of Apple's cloud services.
Core Data with iCloud enabled turns on syncing via iCloud. Any changes you save in Core Data are propagated to the cloud, and any changes ma...
ruby convert array into function arguments
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Using querySelector with IDs that are numbers
...ter the first character: #\\31 0 - you can refer to mothereffingcssescapes.com
– Dennis
Dec 3 '13 at 23:41
Thank you f...
Copy / Put text on the clipboard with FireFox, Safari and Chrome
... now a way to easily do this in most modern browsers using
document.execCommand('copy');
This will copy currently selected text. You can select a textArea or input field using
document.getElementById('myText').select();
To invisibly copy text you can quickly generate a textArea, modify the t...
Web deployment task build failed
...ation with screenshots can be found here: http://workinghardinit.wordpress.com/2011/07/18/wdeployconfigwriter-account-issues-trouble-shooting-web-deploy-2-0-with-lessons-learned/
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Semicolons superfluous at the end of a line in shell scripts?
...micolons at the end of a line are superfluous, since the newline is also a command separator. case specifically needs double semicolons at the end of the last command in each pattern block; see help case for details.
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