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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]

... and now it just complains that Access denied for user – user3338098 Nov 4 '15 at 17:34 5 ...
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ActiveModel::ForbiddenAttributesError when creating new user

...pecify in each controller) Additionally, load_and_authorize_resource can now take a param_method option to specify a custom method in the controller to run to sanitize input. You can associate the param_method option with a symbol corresponding to the name of a method that will get called: class...
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How to abort an interactive rebase if --abort doesn't work?

I've got myself into a muddle via an interactive rebase, and I now wish to abort it. (i.e. go back to the point before I was dropped into interactive rebase mode, in my case via git pull --rebase .) The way to do this seems to be via git rebase --abort , but this doesn't work: ...
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Regex (grep) for multi-line search needed [duplicate]

...ine at the end of line, substituting it for null character. That is, grep knows where end of line is, but sees the input as one big line. -o print only matching. Because we're using -z, the whole file is like a single big line, so if there is a match, the entire file would be printed; this way it w...
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What is the difference between a “line feed” and a “carriage return”?

...re these two keywords then they must have their own meaning. So I want to know what makes them different and what is their code? ...
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How to take column-slices of dataframe in pandas

... .iloc should be used now, instead of .loc. Fix that, and I'll upvote it. – craned Jun 30 '18 at 18:14 ...
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How to escape os.system() calls?

... Something similar to this is now officially available as shlex.quote. – Janus Troelsen Jun 16 '12 at 21:17 3 ...
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Reconnection of Client when server reboots in WebSocket

... ws.onclose = function(){ console.log('closed!'); //reconnect now check(); }; } function check(){ if(!ws || ws.readyState == 3) start(); } start(); setInterval(check, 5000); }); This will retry as soon as the server closes the connection, and it will chec...
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Nullable Foreign Key bad practice?

Let's say you have a table Orders with a foreign key to a Customer Id. Now, suppose you want to add an Order without a Customer Id, (whether that should be possible is another question) you would have to make the foreign key NULL... Is that bad practice or would you rather work with a link table bet...
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Is there an onSelect event or equivalent for HTML ?

... For anyone looking now, .live has been fully removed as of 1.9 api.jquery.com/live/#live-events-handler. Use .change as a shortcut api.jquery.com/change/#change-handler – parttimeturtle May 1 at 21:15 ...