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How to work with Git branches and Rails migrations
...mply run rake db:schema:load.
Note that this will recreate the entire database, and existing data will be lost.
You'll probably only want to run production off of one branch which you're very careful with, so these steps don't apply there (just run rake db:migrate as usual there). But in developm...
Which Architecture patterns are used on Android? [closed]
...r software tasks - they aim to provide templates for software organization based on the use cases of the software component in question.
It sounds a bit complicated, but I hope an example will clarify: If some application will be used to fetch data from a remote server and present it to the user in ...
When to use valueChangeListener or f:ajax listener?
...e is already set.
}
Also, if you would need to update another property based on the submitted value, then it would fail when you're using valueChangeListener as the updated property can be overridden by the submitted value during the subsequent UPDATE_MODEL_VALUES phase. That's exactly why you s...
What does the @ symbol represent in objective-c?
...
Sort of arbitrary; it needed to be in the base ASCII set and not already used by C when the first Objective-C preprocessor was being written. That’s why it’s @.
– Chris Hanson
Apr 9 '19 at 5:33
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Why does Java's Arrays.sort method use two different sorting algorithms for different types?
... arrays so Java's Array.sort() tries to choose the best algorithm to apply based on those criteria.
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Implementing comparison operators via 'tuple' and 'tie', a good idea?
...
else
{
return lexiLessthan(rest...);
}
}
And the .cpp for the base case without arguments:
bool lexiLessthan()
{
return false;
}
Now your example becomes:
return lexiLessthan(
lhs.one_member, rhs.one_member,
lhs.another, rhs.another,
lhs.yet_more, rhs.yet_more
);
...
What do the arrow icons in Subclipse mean?
...electing from the drop-down allows switching between different remote code bases.
- Shows only incoming changes (remote → local).
- Shows only outgoing changes (local → remote).
- Shows both incoming and outgoing changes (remote ↔ local).
- Shows conflicting changes.
- Updates all local r...
How does node.bcrypt.js compare hashed and plaintext passwords without the salt?
...t this way, does it matter if attacker knows salt for certain user in data base like this: column_password = hash, column_salt = salt vs column_password = hash_salt. attacker still has same information. Point of salt is to make every password so random and bigger that it becomes unlikely someone h...
Which method performs better: .Any() vs .Count() > 0?
...ve used LINQ to filter it etc (Where etc), you will have an iterator-block based sequence, and so this ICollection<T> optimisation is useless.
In general with IEnumerable<T> : stick with Any() ;-p
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Git: How to remove file from historical commit?
...refs.
The filter-branch approach is considerably more powerful than the rebase approach, since it
allows you to work on all branches/refs at once,
renames any tags on the fly
operates cleanly even if there have been several merge commits since the addition of the file
operates cleanly even if t...