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Check if OneToOneField is None in Django
...xist.
– Don Kirkby
Jun 27 '16 at 18:32
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No mapping found for field in order to sort on in ElasticSearch
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After digging more, I found the solution as given below. ignore_unmapped should be explicitly set to true in the sort clause.
"sort" : [
{ "rating": {"order" : "desc" , "ignore_unmapped" : true} },
{ "price": {"order" : "asc" , "missing" : "_last" , "ignore_unmapped" : tru...
What is a “callback” in C and how are they implemented?
...tring.h>
#include "../../common_typedef.h"
typedef void (*call_back) (S32, S32);
void test_call_back(S32 a, S32 b)
{
printf("In call back function, a:%d \t b:%d \n", a, b);
}
void call_callback_func(call_back back)
{
S32 a = 5;
S32 b = 7;
back(a, b);
}
S32 main(S32 argc, S8 *...
How to include package data with setuptools/distribute?
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larskslarsks
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How to convert an entire MySQL database characterset and collation to UTF-8?
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answered Aug 8 '12 at 21:32
Arnold DanielsArnold Daniels
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Loading Backbone and Underscore using RequireJS
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B RobsterB Robster
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Saving enum from select in Rails 4.1
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edited Dec 18 '16 at 21:32
Ahmed Fahmy
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answered May 15 '14 at 19...
namespaces for enum types - best practices
...m
{
Red,
Blue,
Green,
Yellow
} enum_type;
private:
enum_type _val;
public:
Color(enum_type val = Blue)
: _val(val)
{
assert(val <= Yellow);
}
operator enum_type() const
{
return _val;
}
};
void SetPenC...
SQL query to get all values a enum can have
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
How can I list all foreign keys referencing a given table in SQL Server?
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Not sure why no one suggested but I use sp_fkeys to query foreign keys for a given table:
EXEC sp_fkeys 'TableName'
You can also specify the schema:
EXEC sp_fkeys @pktable_name = 'TableName', @pktable_owner = 'dbo'
Without specifying the schema, the docs state ...