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Entity Framework - Add Navigation Property Manually
... what you do:
1 - Right click on the designer, Add -> Association
2 - Setup the association and cardinalities (People *..1 Gender, People *..1 Race)
3 - Go into the Model Browser -> Associations
4 - Right click on your newly created associations, click Properties
5 - Here you need to setu...
How do I find numeric columns in Pandas?
...Following codes will return list of names of the numeric columns of a data set.
cnames=list(marketing_train.select_dtypes(exclude=['object']).columns)
here marketing_train is my data set and select_dtypes() is function to select data types using exclude and include arguments and columns is used t...
How do you remove all the options of a select box and then add one option and select it with jQuery?
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@nickf: I have the same problem, but I need to add a set of checkboxes rather than one on change of dropdown but my checkboxes are coming from xml. this doesn't work
– defau1t
Jan 15 '12 at 11:32
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When do I need to use AtomicBoolean in Java?
...e. You can fix it by using AtomicBoolean:
if (atomicInitialized.compareAndSet(false, true)) {
initialize();
}
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In Firebase, is there a way to get the number of children of a node without loading all the node dat
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The code snippet you gave does indeed load the entire set of data and then counts it client-side, which can be very slow for large amounts of data.
Firebase doesn't currently have a way to count children without loading data, but we do plan to add it.
For now, one solution wou...
What's the best way to retry an AJAX request on failure using jQuery?
... console.log(retries); // prrint retry count
retries > 0 && setTimeout(function(){
runAjax(--retries);
},delay);
})
})(3, 100);
Another approach would be to use a retries property on the $.ajax
// define ajax settings
var ajaxSettings = {
type : 'GET',
url ...
In javascript, is an empty string always false as a boolean?
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Aaaaand it's settled
– Anthony
Mar 2 '16 at 22:34
29
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How to read if a checkbox is checked in PHP?
...value="value1">
After submitting the form you can check it with:
isset($_POST['test'])
or
if ($_POST['test'] == 'value1') ...
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Include intermediary (through model) in responses in Django Rest Framework
...fine a field on it like:
groups = MembershipSerializer(source='membership_set', many=True)
and then on your membership serializer you can create this:
class MembershipSerializer(serializers.HyperlinkedModelSerializer):
id = serializers.Field(source='group.id')
name = serializers.Field(s...
How can I count all the lines of code in a directory recursively?
...wc -l **/*.php
In the Bash shell this requires the globstar option to be set, otherwise the ** glob-operator is not recursive. To enable this setting, issue
shopt -s globstar
To make this permanent, add it to one of the initialization files (~/.bashrc, ~/.bash_profile etc.).
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