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Ruby on Rails: how to render a string as HTML?

...n, it is recommended to use sanitize instead of html_safe. Link What's happening is that, as a security measure, Rails is escaping your string for you because it might have malicious code embedded in it. But if you tell Rails that your string is html_safe, it'll pass it right through. @str = "&l...
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How do I change the android actionbar title and icon

... android:label="My new title" /> To enable the back button in your app use: getActionBar().setHomeButtonEnabled(true); getActionBar().setDisplayHomeAsUpEnabled(true); The code should all be placed in your onCreate so that the label/icon changing is transparent to the user, but in realit...
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Android SQLite DB When to Close

...t. this will prevent multiple manipulations to the database and save your application from a potential crash so in your singleton, you might have a method like this to get your single SQLiteOpenHelper object: private SQLiteDatabase db; private MyDBOpenHelper mySingletonHelperField; public MyDBOpe...
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IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration d

...son it cannot read the config file is because the process running your web app does not have permission to access the file/directory. So you need to give the process running your web app those permissions. The access rights should be fairly straightforward, i.e. at least Read, and, depending on yo...
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What is the difference between self-types and trait subclasses?

... self-types for DI. But somehow I am not convinced. I had created a sample app here long back (bitbucket.org/mushtaq/scala-di). Look specifically at /src/configs folder. I achieved DI to replace complex Spring configurations without self-types. – Mushtaq Ahmed ...
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How to correctly require a specific commit in Composer so that it would be available for dependent p

...rette library at that hash, with a dev flag, in both your library and your application. Something like this should work in the application composer.json: { "name": "bar/bar-app", "repositories": [ { "type": "vcs", "url": "ssh://git.example.com/foo-lib" ...
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ExpressJS - throw er Unhandled error event

I created expressjs application using the following commands: 32 Answers 32 ...
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Where Is Machine.Config?

I want to apply a change so That I can use Server GC settings for my C# 3.5 app - I can do that by editing the machine.config file. ...
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android asynctask sending callbacks to ui [duplicate]

... article which, I think, is a better way to go for developing your Android apps with asynchronous operations. share | improve this answer | follow | ...
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Unable to resolve host “”; No address associated with hostname [closed]

In my Android application for reading RSS links, I am getting this error: 17 Answers ...