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Rails new vs create
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Within Rails' implementation of REST new and create are treated differently.
An HTTP GET to /resources/new is intended to render a form suitable for creating a new resource, which it does by calling the new action within the controller, which creates a new unsaved...
Why does `a == b or c or d` always evaluate to True?
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In many cases, Python looks and behaves like natural English, but this is one case where that abstraction fails. People can use context clues to determine that "Jon" and "Inbar" are objects joined to the verb "equals", but the Python interpreter is more...
How to print to console in pytest?
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By default, py.test captures the result of standard out so that it can control how it prints it out. If it didn't do this, it would spew out a lot of text without the context of what test printed that text.
However, if a test fails, it will include a section in the res...
Android webview launches browser when calling loadurl
I created an Activity that has a title and a web view in a LinearLayout . In the onResume() method it calls webView.loadUrl(url) . The problem is that the activity first shows the title with the rest of the screen blank, then the device browser is launched with the page for the URL. What I wan...
Check if a string contains a number
...mbers in what I'd like to be a numberless string.
I need to enter a string and check to see if it contains any numbers and if it does reject it.
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Getting attribute using XPath
...he XML document.
To get just the string value of this attribute use the standard XPath function string():
string(/*/book[1]/title/@lang)
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Grep only the first match and stop
... you. btw - are all those other arguments necessary that I have in the command? and what if I can't pipe it by chance (just in case).
– Tim Kamm
Dec 30 '12 at 18:48
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Eager load polymorphic
... this issue, you need to explicitly define the relationship between Review and Shop.
class Review < ActiveRecord::Base
belongs_to :user
belongs_to :reviewable, polymorphic: true
# For Rails < 4
belongs_to :shop, foreign_key: 'reviewable_id', conditions: "reviews.reviewable_type = ...
“The remote certificate is invalid according to the validation procedure.” using Gmail SMTP server
...ew MMC.
File --> Add/Remove Snap-In...
Click Add...
Choose Certificates and click Add.
Check the "Computer Account" radio button. Click Next.
Choose the client computer in the next screen. Click Finish.
Click Close.
Click OK.
NOW install the certificate into the Trusted Root Certification Author...
Question mark (?) in XML attributes for Android
Can anyone explain the question mark means in Android XML attributes?
2 Answers
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