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how to add records to has_many :through association in rails

... @Mischa how should i handle error if House.find(params[:house_id]) is nill.. i got error of TypeMismatch if params[:house_id] is nil.. i already using rescue. but is there any better_way..?? – Vishal Jul 30...
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How do I map lists of nested objects with Dapper

... Dapper is not a full blown ORM it does not handle magic generation of queries and such. For your particular example the following would probably work: Grab the courses: var courses = cnn.Query<Course>("select * from Courses where Category = 1 Order by Creatio...
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Tick symbol in HTML/XHTML

We need to display a tick symbol (✓ or ✔) within an internal web app and would ideally like to avoid using an image. ...
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How to run a single RSpec test?

...RSpec.configure do |config| config.filter_run_when_matching :focus end And then add a focus tag to the it, context or describe to run only that block: it 'runs a test', :focus do ...test code end RSpec documentation: https://www.rubydoc.info/github/rspec/rspec-core/RSpec/Core/Configuration...
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Open link in new tab or window [duplicate]

... You should add the target="_blank" and rel="noopener noreferrer" in the anchor tag. For example: <a target="_blank" rel="noopener noreferrer" href="http://your_url_here.html">Link</a> Adding rel="noopener noreferrer" is not mandatory, but it's ...
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jQuery: keyPress Backspace won't fire?

...dent on key. You want to use keypress for Enter key, keydown for Backspace and so forth; otherwise you'll find your events in some browsers don't really work as you expect, especially when you want to prevent the default behavior for the key. When you use the wrong one, what will happen is either yo...
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Mark parameters as NOT nullable in C#/.NET?

...pile time to make sure the literal null isn't being used anywhere for it and at run-time throw ArgumentNullException . 6...
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How to schedule a function to run every hour on Flask?

I have a Flask web hosting with no access to cron command. 8 Answers 8 ...
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Contributing to project on github, how to “rebase my pull request on top of master”

...The project on github is upstream , my forked repo on github is origin , and my local repo on my computer. 2 Answers ...
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From io.Reader to string in Go

...ice is to stick to the official method. Doing a copy is not that expensive and it is not worth the evils of unsafe. If the string is too large to do a copy, you should not be making it into a string. share | ...