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How to remove a field from params[:something]
... this question was written newer versions of Rails have added the extract! and except eg:
new_params = params.except[the one I wish to remove]
This is a safer way to 'grab' all the params you need into a copy WITHOUT destroying the original passed in params (which is NOT a good thing to do as it ...
How to empty a list?
...ote that doing lst = [] does not empty the list, just creates a new object and binds it to the variable lst, but the old list will still have the same elements, and effect will be apparent if it had other variable bindings.
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How to run JUnit tests with Gradle?
...dd a junit 4 dependency correctly?
Assuming you're resolving against a standard Maven (or equivalent) repo:
dependencies {
...
testCompile "junit:junit:4.11" // Or whatever version
}
Run those tests in the folders of tests/model?
You define your test source set the same way:
sour...
How does OpenID authentication work?
...e of already existing internet technology (URI, HTTP, SSL, Diffie-Hellman) and realizes that people are already creating identities for themselves whether it be at their blog, photostream, profile page, etc. With OpenID you can easily transform one of these existing URIs into an account which can be...
How to make a DIV visible and invisible with JavaScript
...roperty of that element. To show/hide, you can use two properties: display and visibility, which have slightly different effects:
Adjusting style.display will look as if element is not present at all ("removed").
elem.style.display = 'none'; // hide
elem.style.display = 'block'; // show - use this...
Maven package/install without test (skip tests)
...thanks for ur immediate reply,am running from eclipse, where i add the command -Dmaven.test.skip=true?
– vks
Sep 17 '11 at 15:59
10
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How to append contents of multiple files into one file
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You need the cat (short for concatenate) command, with shell redirection (>) into your output file
cat 1.txt 2.txt 3.txt > 0.txt
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Rails update_attributes without save?
...utes({ :name => 'Josh', :is_admin => true }) raises an error message and doesn't actually set the user's name property.
– Ajedi32
Sep 5 '12 at 19:50
7
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how to unit test file upload in django
...ase. To POST a file, you need only
provide the file field name as a key, and a file handle to the file
you wish to upload as a value. For example:
c = Client()
with open('wishlist.doc') as fp:
c.post('/customers/wishes/', {'name': 'fred', 'attachment': fp})
...
Is inject the same thing as reduce in ruby?
...
Yes, and it's also called fold in many other programming languages and in Mathematics. Ruby aliases a lot in order to be intuitive to programmers with different backgrounds. If you want to use #length on an Array, you can. If you ...