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Chrome Dev Tools: How to trace network for a link that opens a new tab?
...tributes.target.value = '_self';
}
});
window.open = function(url) {
location.href = url;
};
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How to log SQL statements in Grails
...river:
driverClassName: com.p6spy.engine.spy.P6SpyDriver
And your jdbc url:
url: jdbc:p6spy:mysql://
Configure it using spy.properties (in grails-app/conf).
driverlist=org.h2.Driver,com.mysql.jdbc.Driver
autoflush=true
appender=com.p6spy.engine.spy.appender.StdoutLogger
databaseDialectDate...
Check if image exists on server using JavaScript?
...
You could use something like:
function imageExists(image_url){
var http = new XMLHttpRequest();
http.open('HEAD', image_url, false);
http.send();
return http.status != 404;
}
Obviously you could use jQuery/similar to perform your HTTP request.
$.get(image_url...
How to install gem from GitHub source?
...stall a gem from its github repository (like 'edge'), or from an arbitrary URL. Very usefull for forking gems and hacking on them on multiple machines and such.
gem install specific_install
gem specific_install -l <url to a github gem>
e.g.
gem specific_install https://github.com/githubsvnclo...
How does RewriteBase work in .htaccess
...[a-z0-9\-]+)$ $1/ [NC,R=301,L]
This is a real rule I used to ensure that URLs have a trailing slash. This will convert
http://www.example.com/~new/page
to
http://www.example.com/~new/page/
By having the RewriteBase there, you make the relative path come off the RewriteBase parameter.
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How to access a preexisting collection with Mongoose?
...el.
Try something like the following, either schema-mapped:
new Schema({ url: String, text: String, id: Number},
{ collection : 'question' }); // collection name
or model mapped:
mongoose.model('Question',
new Schema({ url: String, text: String, id: Number}),
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form_for with nested resources
...ribed at http://edgeguides.rubyonrails.org/routing.html#creating-paths-and-urls-from-objects
For example, inside a collections partial with comment_item supplied for iteration,
<%= link_to "delete", article_comment_path(@article, comment_item),
:method => :delete, :confirm => "Reall...
pip install from git repo branch
...
Prepend the url prefix git+ (See VCS Support):
pip install git+https://github.com/tangentlabs/django-oscar-paypal.git@issue/34/oscar-0.6
And specify the branch name without the leading /.
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Accessing Session Using ASP.NET Web API
...bApiConfig.cs
public static class WebApiConfig
{
public static string UrlPrefix { get { return "api"; } }
public static string UrlPrefixRelative { get { return "~/api"; } }
public static void Register(HttpConfiguration config)
{
config.Routes.MapHttpRoute(
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How to create a new database using SQLAlchemy?
...= create_engine("postgres://localhost/mydb")
if not database_exists(engine.url):
create_database(engine.url)
print(database_exists(engine.url))
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