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How do I compare two hashes?
... expected_hash with HashDiff.diff(got_hash, expected_hash).should eql [] I now get output which shows exactly what I need. Perfect!
– davetapley
Jul 24 '12 at 19:29
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How to select a single field for all documents in a MongoDB collection?
...e returned document will return only the roll field (and exclude the _id).
If we don't mention _id:0 the fields returned will be roll and _id. The '_id' field is always displayed by default. So we need to explicitly mention _id:0 along with roll.
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Ruby optional parameters
...s = nil)
scope ||= LDAP::LDAP_SCOPE_SUBTREE
... do something ...
end
Now if you call the method as above, the behaviour will be as you expect.
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Rails 3 - can't install pg gem
...pplications/Postgres.app/Contents/MacOS/bin:$PATH"
gem install pg should now work. (This is what worked for me.)
Note New versions path looks like:
/Applications/Postgres.app/Contents/Versions/<version>/bin
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Eliminate extra separators below UITableView
...dded if (tableView.style != UITableViewStyleGrouped) { } around your code. Now all my non-grouped tables lose their extra cells, while my grouped tables are unaffected.
– arlomedia
Aug 31 '12 at 16:03
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how to get the current working directory's absolute path from irb
I'm running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__)
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What is the difference between require_relative and require in Ruby?
What is the difference between require_relative and require in Ruby?
7 Answers
7
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Get all related Django model objects
...me: links = [field.get_accessor_name() for field in obj._meta.get_fields() if issubclass(type(field), ForeignObjectRel)] (given from django.db.models.fields.related import ForeignObjectRel)
– driftcatcher
May 31 '18 at 20:41
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What does `m_` variable prefix mean?
... need to see where they're defined to know their scope. This is also great if you already know the scope and you're using something like intelliSense, you can start with m_ and a list of all your member variables are shown. Part of Hungarian notation, see the part about scope in the examples here.
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Mongoose populate after save
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It would be nice if this worked with virtual attributes. like creator.profile
– chovy
Jun 5 '14 at 7:31
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