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How to set default values in Rails?

... "Correct" is a dangerous word in Ruby. There's usually more than one way to do anything. If you know you'll always want that default value for that column on that table, setting them in a DB migration file is the easiest way: class SetDefault < ActiveRecord::Migration ...
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Ignore Xcode warnings when using Cocoapods

...it, after the latest Xcode updates. (for example the Facebook SDK pod) Now all these warnings are shown in my Xcode on the place I want to see my own warnings or errors. ...
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Django Model - Case-insensitive Query / Filtering

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
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Find out if ListView is scrolled to the bottom?

...r_list_id: // Make your calculation stuff here. You have all your // needed info from the parameters of this function. // Sample calculation to determine if the last // item is fully visible. final int lastItem = firstVisibleItem + ...
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What does Connect.js methodOverride do?

...en you can use app.delete and app.put in Express instead of using app.post all the time (thus more descriptive, verbose): Backend: // the app app.put('/users/:id', function (req, res, next) { // edit your user here }); Client logic: // client side must be.. <form> ... <input type=...
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how to delete all cookies of my website in php

I'm wondering if I can delete all my website's cookies when a user click on logout, because I used this as function to delete cookies but it isn't work properly: ...
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Connect to a locally built Jekyll Server using mobile devices in the LAN

...e Jekyll on the command line. That will make Jekyll's HTTP server bind to all available IPs, rather than just to localhost. You can also add this to your _config.yml with host: 0.0.0.0. GitHub will simply ignore this when you push, so it's safe to use if you don't mind having your work openly acce...
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Is git not case sensitive?

In the first commitment of my partial called _Electronics it was written beginning with a capital letters, then I changed it to _electronics . ...
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Best way to structure a tkinter application? [closed]

The following is the overall structure of my typical python tkinter program. 7 Answers ...
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How to Unit test with different settings in Django?

... EDIT: This answer applies if you want to change settings for a small number of specific tests. Since Django 1.4, there are ways to override settings during tests: https://docs.djangoproject.com/en/dev/topics/testing/tools/#overriding-settings TestCase will have a self.settings context ma...