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Entity Framework code first unique column

...ap()); // ... } Update 2 for EntityFrameworkCore see also this topic: https://github.com/aspnet/EntityFrameworkCore/issues/1698 Update 3 for EF6.2 see: https://github.com/aspnet/EntityFramework6/issues/274 Update 4 ASP.NET Core Mvc 2.2 with EF Core: [DatabaseGenerated(DatabaseGeneratedO...
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What is the difference between pluck and collect in Rails?

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How to make a DIV not wrap?

...t; <div class="slide">something4</div> </div> https://css-tricks.com/snippets/css/a-guide-to-flexbox/ share | improve this answer | follow ...
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Where should Rails 3 custom validators be stored?

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How do I convert an integer to string as part of a PostgreSQL query?

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Change a Rails application to production

...of the server (CentOS 6, but it should apply to nearly all Linux flavors): https://www.digitalocean.com/community/tutorials/how-to-setup-a-rails-4-app-with-apache-and-passenger-on-centos-6 Make absolute certain that after Passenger is set up you've edited the /etc/httpd/conf/httpd.conf file to refle...
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Is there a concurrent List in Java's JDK?

....edu/dl/classes/EDU/oswego/cs/dl/util/concurrent/CopyOnWriteArrayList.html https://docs.oracle.com/javase/9/docs/api/java/util/concurrent/CopyOnWriteArrayList.html https://www.logicbig.com/tutorials/core-java-tutorial/java-collections/concurrent-collection-cheatsheet.html ...
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How to delete migration files in Rails 3

... your table or columns. Another great reference for migrations is: http://guides.rubyonrails.org/migrations.html share | improve this answer | follow | ...
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Remove or uninstall library previously added : cocoapods

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Launching Spring application Address already in use

...on completion of my SpringBoot Consuming Rest application in this tutorial https://spring.io/guides/gs/consuming-rest/ spring-boot share | improve this answer | follow ...