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django syncdb and an updated model
... this automatically. Your options are:
Drop the table from the database, then recreate it in new form using syncdb.
Print out SQL for the database using python manage.py sql (appname), find the added line for the field and add it manually using alter table SQL command. (This will also allow you to...
Is Javascript a Functional Programming Language?
...guage as
the language that supports first class
functions and lambdas, then yes, JavaScript *is* a
functional language.
If you also consider the factors like
support for immutability, algebraic
data types, pattern matching, partial
application etc then no, JavaScript
*is not* a fu...
How to specify new GCC path for CMake
...port only needs to be done once, the first time you configure the project, then those values will be read from the CMake cache.
UPDATE: longer explanation on why not overriding CMAKE_C(XX)_COMPILER after Jake's comment
I recommend against overriding the CMAKE_C(XX)_COMPILER value for two main re...
How to get the directory of the currently running file?
...
@DerekDowling a way would be first doing a go install, then running go build -v *.go && ./main. The -v would tell you which files are being built. Generally, I've found that the time different between go run and go build is tolerable if I've already run go install. For wi...
Advantages to Using Private Static Methods
.... If you give a static method access to a reference to some mutable state, then that static method can very well mess up your state.
– sara
May 19 '16 at 7:07
1
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How do I delete an item or object from an array using ng-click?
...ve it from array and can pass bday item to your remove function in markup. Then in controller look up the index of item and remove from array
<a class="btn" ng-click="remove(item)">Delete</a>
Then in controller:
$scope.remove = function(item) {
var index = $scope.bdays.indexOf(ite...
How to trigger a build only if changes happen on particular set of files
...d:
Job #1
This should be triggered on changes in your Git repository. It then tests whether the path you specify ("src" here) has changes and then uses Jenkins' CLI to trigger a second job.
export JENKINS_CLI="java -jar /var/run/jenkins/war/WEB-INF/jenkins-cli.jar"
export JENKINS_URL=http://local...
Changing MongoDB data store directory
...
I updated /etc/mongodb.conf per this solution. Then, after starting mongod, I saw that /data/db was used. Why did updating mongodb.conf not affect where mongod stored the db? (Note that using the --dbpath argument worked.
– Kevin Meredith
...
Does using “new” on a struct allocate it on the heap or stack?
...but in fact (for that specific code) the stack is only allocated once, and then the same storage location is reused.
EDIT: Just to be clear, this is only true in some cases... in particular, the value of guid won't be visible if the Guid constructor throws an exception, which is why the C# compiler...
How to avoid the “divide by zero” error in SQL?
...y zero" error we have programmed it like this:
Select Case when divisor=0 then null
Else dividend / divisor
End ,,,
But here is a much nicer way of doing it:
Select dividend / NULLIF(divisor, 0) ...
Now the only problem is to remember the NullIf bit, if I use the "/" key.
...