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How to make PDF file downloadable in HTML link?

...ad of linking to the .PDF file, instead do something like <a href="pdf_server.php?file=pdffilename">Download my eBook</a> which outputs a custom header, opens the PDF (binary safe) and prints the data to the user's browser, then they can choose to save the PDF despite their browser s...
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Adding :default => true to boolean in existing Rails column

...dding a default boolean value to an existing column. So I tried the change_column suggestion but I mustn't be doing it right. ...
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How to use font-awesome icons from node-modules

...file, you can either import the whole font awesome less using @import "node_modules/font-awesome/less/font-awesome.less", or look in that file and import just the components that you need. I think this is the minimum for basic icons: /* adjust path as needed */ @fa_path: "../node_modules/font-aweso...
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What is the Swift equivalent to Objective-C's “@synchronized”?

...d on some of the code I've seen from Matt Bridges and others. func synced(_ lock: Any, closure: () -> ()) { objc_sync_enter(lock) closure() objc_sync_exit(lock) } Usage is pretty straight forward synced(self) { println("This is a synchronized closure") } There is one problem...
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Merge, update, and pull Git branches without using checkouts

...n directory, you can call it as a git command: git merge-ff. #!/bin/bash _usage() { echo "Usage: git merge-ff <branch> <committish-to-merge>" 1>&2 exit 1 } _merge_ff() { branch="$1" commit="$2" branch_orig_hash="$(git show-ref -s --verify refs/heads/$branch...
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How to set default values in Rails?

...ay: class SetDefault < ActiveRecord::Migration def self.up change_column :people, :last_name, :type, :default => "Doe" end def self.down # You can't currently remove default values in Rails raise ActiveRecord::IrreversibleMigration, "Can't remove the default" end end Be...
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Version number comparison in Python

...o for your cmp function: >>> cmp = lambda x, y: StrictVersion(x).__cmp__(y) >>> cmp("10.4.10", "10.4.11") -1 If you want to compare version numbers that are more complex distutils.version.LooseVersion will be more useful, however be sure to only compare the same types. >>...
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How to get notified about changes of the history via history.pushState?

...late the whole code into an IIFE: en.wikipedia.org/wiki/Immediately-invoked_function_expression – gblazex Nov 16 '13 at 14:55  |  show 15 more...
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Android Notification Sound

... code: Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); builder.setSound(alarmSound); share | improve this answer | follow ...
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How can I restore the MySQL root user’s full privileges?

...ue the following commands in the mysql client: UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root'; FLUSH PRIVILEGES; After that, you should be able to run GRANT ALL ON *.* TO 'root'@'localhost'; and have it work. ...