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Update one MySQL table with values from another
... imageUploader: {
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How to merge YAML arrays?
I would like to merge arrays in YAML, and load them via ruby -
5 Answers
5
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How to implement a ViewPager with different Fragments / Layouts
...layout.activity_main);
ViewPager pager = (ViewPager) findViewById(R.id.viewPager);
pager.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));
}
private class MyPagerAdapter extends FragmentPagerAdapter {
public MyPagerAdapter(FragmentManager fm) {
...
Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...ook if it then works.
In the end it's easier to do it with a simple mapper by your own, because hibernate is just an additional intransparent burden.
Another example: Trying to read parameters from one database and persist them in another forces you to do nearly all work manually. But if you have to...
How do I convert a String object into a Hash object?
...
The string created by calling Hash#inspect can be turned back into a hash by calling eval on it. However, this requires the same to be true of all of the objects in the hash.
If I start with the hash {:a => Object.new}, then its string repr...
Encoding Javascript Object to Json string
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gdb fails with “Unable to find Mach task port for process-id” error
...ings on the system or open ports lower than 1024 (higher ports can be used by non system/non root users). Even if you "trust" your own code it doesn't mean you didn't make a mistake that causes it to rm -rf /or something similiarly destructive where you overwrite some config/binaries that your comp...
How to remove a column from an existing table?
...t generally speaking this is not so trivial.
If this column is referenced by other tables then you need to figure out what to do with other tables/columns. One option is to remove foreign keys and keep referenced data in other tables.
Another option is to find all referencing columns and remove th...
Best way to create unique token in Rails?
...safe random token and ensuring it's uniqueness for the model (when using Ruby 1.9 and ActiveRecord):
class ModelName < ActiveRecord::Base
before_create :generate_token
protected
def generate_token
self.token = loop do
random_token = SecureRandom.urlsafe_base64(nil, false)
...
Flushing footer to bottom of the page, twitter bootstrap
...ot that it's impossible, but general purpose solutions can be hard to come by, and fixing annoying things like this in our layouts shouldn't take trips to stack exchange, multiple gist revisions, cross-browswer testing, and eventual surrender to a simple JS trick. Yeah, I feel a bit dirty, but at l...