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Run a callback only if an attribute has changed in Rails
... # ...
end
end
The commit that changed ActiveRecord::Dirty is here: https://github.com/rails/rails/commit/16ae3db5a5c6a08383b974ae6c96faac5b4a3c81
Here is a blog post on these changes: https://www.ombulabs.com/blog/rails/upgrades/active-record-5-1-api-changes.html
Here is the summary I made...
RabbitMQ message size and types
...rapping the message body).
-define(MAX_MSG_SIZE, 2147383648).
Reference: https://github.com/rabbitmq/rabbitmq-common/blob/v3.7.21/include/rabbit.hrl#L279
It has been 512 MiB since version 3.8.0:
%% Max message size is hard limited to 512 MiB.
%% If user configures a greater rabbit.max_message_si...
brew update: The following untracked working tree files would be overwritten by merge:
... first you may have have to cd usr/local and git remote add origin https://github.com/mxcl/homebrew.git see also stackoverflow.com/questions/6024671/…
– s2t2
Jul 27 '13 at 19:51
...
Get host domain from URL?
...If you want to manipulate Url, using Uri object is the good way to do it.
https://msdn.microsoft.com/en-us/library/system.uri(v=vs.110).aspx
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ASP.NET: HTTP Error 500.19 – Internal Server Error 0x8007000d
...n the end, I installed DotNetCore.1.0.0-WindowsHosting.exe from this page: https://www.microsoft.com/net/download and it started working right away.
Specific link to download: https://go.microsoft.com/fwlink/?LinkId=817246
...
$apply already in progress error
...apply really is appropriate here, consider using a "safe apply" approach:
https://coderwall.com/p/ngisma
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How to select a CRAN mirror in R
...
Edit: As it is now 2018, we can add that for the last few years the URL "https://cloud.r-project.org" has been preferable as it reflects a) https access and b) an "always-near-you" CDN.
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Express-js wildcard routing to cover everything under and including a path
...r the * in a path is replaced with .+ so will match 1 or more characters.
https://github.com/senchalabs/connect/blob/master/lib/middleware/router.js
If you have 2 routes that perform the same action you can do the following to keep it DRY.
var express = require("express"),
app = express.creat...
How can I access an object property named as a variable in php?
...ject->$property_name;
You can see both of these in action on repl.it: https://repl.it/@jrunning/SpiritedTroubledWorkspace
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Lightweight Javascript DB for use in Node.js [closed]
... API is the most commonly used subset of the very well-known MongoDB API.
https://github.com/louischatriot/nedb
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