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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
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To add to Fryie's answer, you don't even need to load all of ActiveSupport; you can just include them then require "active_support/core_ext/hash/except"
– GMA
May 13 '16 at 7:33
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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
... 8.8.8.8
Address 1: 8.8.8.8
If the command appears to hang, but eventually spits out the error "can't resolve 'google.com'", then you have the same problem as me.
The nslookup command queries the DNS server 8.8.8.8 in order to turn the text address of 'google.com' into an IP address. Ironicall...
Rails Admin vs. ActiveAdmin [closed]
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I vote for rails_admin. I like its looks and the fact that out of the box all the models are available for administration. The history feature is quite useful too.
Any project with Yehuda Katz as a mentor should be a safe bet.
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Why do we use $rootScope.$broadcast in AngularJS?
... scope of that app can catch it using a simple: $scope.$on().
It is especially useful to send events when you want to reach a scope that is not a direct parent (A branch of a parent for example)
!!! One thing to not do however is to use $rootScope.$on from a controller. $rootScope is the applicati...
Symfony2 : How to get form validation errors after binding the request to the form
... May 24 '15 at 23:40
Carrie Kendall
10.5k55 gold badges5656 silver badges7979 bronze badges
answered Aug 8 '11 at 9:23
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Display open transactions in MySQL
...ction to the server while sending a statement, it immediately and automatically tries to reconnect once to the server and send the statement again. However, even if mysql succeeds in reconnecting, your first connection has ended and all your previous session objects and settings are lost: temporary ...
How to link a Facebook app with an existing fan page
...ou will find "App Page". There you will be able to create a new page or if all went well, select your page from a list.
I found the info in the little question-mark next to "App page".
I hope this helps.
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HTML table headers always visible at top of window when viewing a large table
...n if its just a question about how to get it working. Ill respond there usually in under a day. Here ill probably respond in just under a year :)
– mkoryak
Oct 4 '16 at 18:21
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How to listen for changes to a MongoDB collection?
...tricks. The key here is the oplog.
When you run MongoDB in a Replica Set, all of the MongoDB actions are logged to an operations log (known as the oplog). The oplog is basically just a running list of the modifications made to the data. Replicas Sets function by listening to changes on this oplog a...
cannot download, $GOPATH not set
I want to install json2csv using go get github.com/jehiah/json2csv but I receive this error:
15 Answers
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