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How to fix the Hibernate “object references an unsaved transient instance - save the transient insta
...resent in the database. By specifying the above options you tell hibernate to save them to the database when saving their parent.
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Use of 'prototype' vs. 'this' in JavaScript?
...ore looking at the differences, the following should be noted:
A constructor's prototype provides a way to share methods and values among instances via the instance's private [[Prototype]] property.
A function's this is set by how the function is called or by the use of bind (not discussed here). ...
How to configure heroku application DNS to Godaddy Domain?
I have created a heroku application and wants to give domain to it from godaddy.com.
6 Answers
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Socket.io rooms difference between broadcast.to and sockets.in
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socket.broadcast.to broadcasts to all sockets in the given room, except to the socket on which it was called while io.sockets.in broadcasts to all sockets in the given room.
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How serious is this new ASP.NET security vulnerability and how can I workaround it?
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What should I do to protect myself?
[Update 2010-09-29]
Microsoft security bulletin
KB Article with reference to the fix
ScottGu has links for the downloads
[Update 2010-09-25]
While we are waiting for the fix, yesterday ScottGu postet ...
Is there a MySQL option/feature to track history of changes to records?
I've been asked if I can keep track of the changes to the records in a MySQL database. So when a field has been changed, the old vs new is available and the date this took place. Is there a feature or common technique to do this?
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Convert to/from DateTime and Time in Ruby
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You'll need two slightly different conversions.
To convert from Time to DateTime you can amend the Time class as follows:
require 'date'
class Time
def to_datetime
# Convert seconds + microseconds into a fractional number of seconds
seconds = sec + Rational(u...
How to use the “number_to_currency” helper method in the model rather than view?
I would like to use to_dollar method in my model like this:
11 Answers
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Database development mistakes made by application developers [closed]
... indexes should often cover multiple columns based on the queries you need to execute.
2. Not enforcing referential integrity
Your database may vary here but if your database supports referential integrity--meaning that all foreign keys are guaranteed to point to an entity that exists--you should ...
How can I use Autolayout to set constraints on my UIScrollview?
...have spent two days trying out the various solutions for Mixed and Pure Autolayout approaches to achieve what was a trivial scrollview setup prior to autolayout, and it's now official - I must be too stupid. I am setting this up mostly in Storyboard (well, it's just the way it is).
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