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PG undefinedtable error relation users does not exist
....
Here was the BROKEN code:
FactoryGirl.define do
factory :user do
guid User.new.send(:new_token)
end
end
And it was erroring because User was not defined when factories.rb was being loaded. I wrapped the User.new call in a block and it solved the issue:
Fixed code:
FactoryGirl.define ...
Post parameter is always null
...The official ASP.NET site was updated today with an excellent explanation: https://docs.microsoft.com/en-us/aspnet/web-api/overview/advanced/sending-html-form-data-part-1
In a nutshell, when sending a single simple type in the body, send just the value prefixed with an equal sign (=), e.g. body:
=...
What's the difference between findAndModify and update in MongoDB?
...eUploader: {
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How can I add a hint text to WPF textbox?
...
This is my simple solution, adapted from Microsoft (https://code.msdn.microsoft.com/windowsapps/How-to-add-a-hint-text-to-ed66a3c6)
<Grid Background="White" HorizontalAlignment="Right" VerticalAlignment="Top" >
<!-- overlay with hint text -->
&...
What does the tilde before a function name mean in C#?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What's the best practice for primary keys in tables?
...if you have 1 billion rows with int or long pk's compared to using text or guid's. There's a huge difference!
– Logicalmind
Dec 3 '08 at 20:31
45
...
Is the C# static constructor thread safe?
...e any instances of a class are created or any static members are accessed. https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/static-constructors
The implementation shown is thread safe for the initial construction, that is, no locking or null testing is required f...
How to use the CancellationToken property?
...you app goto background you can cancel this token.
You can do this in PCL https://developer.xamarin.com/guides/xamarin-forms/application-fundamentals/app-lifecycle
var cancelToken = new CancellationTokenSource();
Task.Factory.StartNew(async () => {
await Task.Delay(10000);
// call web A...
How do you search an amazon s3 bucket?
...
AWS released a new Service to query S3 buckets with SQL: Amazon Athena https://aws.amazon.com/athena/
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adding and removing classes in angularJs using ng-click
...
});
.red{
color:red;
}
.blue{
color:blue;
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="ap" ng-controller="con">
<div ng-class="class">{{class}}</div>
<button ng-click="changeClass(...