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Convert Django Model object to dict with all of the fields intact
..._key_id': 2,
'id': 1,
'normal_value': 1,
'readonly_value': 2}
This is by far the simplest, but is missing many_to_many, foreign_key is misnamed, and it has two unwanted extra things in it.
2. model_to_dict
from django.forms.models import model_to_dict
model_to_dict(instance)
which returns...
How do I use cascade delete with SQL Server?
...ADD CONSTRAINT command:
And hit the "Execute" button to run this query.
By the way, to get a list of your Foreign Keys, and see which ones have "Cascade delete" turned on, you can run this script:
SELECT
OBJECT_NAME(f.parent_object_id) AS 'Table name',
COL_NAME(fc.parent_object_id,fc.pare...
How to use WHERE IN with Doctrine 2
...g the named parameter as an array causes the bound parameter number issue. By removing it from its array wrapping:
$qb->add('where', $qb->expr()->in('r.winner', '?1'));
This issue should be fixed. This might have been a problem in previous versions of Doctrine, but it is fixed in the mos...
Javascript - Append HTML to container element without innerHTML
...ive (as using DocumentFragment does not seem to work): You can simulate it by iterating over the children of the newly generated node and only append those.
var e = document.createElement('div');
e.innerHTML = htmldata;
while(e.firstChild) {
element.appendChild(e.firstChild);
}
...
MySQL Orderby a number, Nulls last
Currently I am doing a very basic OrderBy in my statement.
12 Answers
12
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Python assigning multiple variables to same value? list behavior
...tiple assignment as show below to initialize variables, but I got confused by the behavior, I expect to reassign the values list separately, I mean b[0] and c[0] equal 0 as before.
...
List the queries running on SQL Server
... ,'CHECKPOINT SLEEP'
,'RA MANAGER')
order by batch_duration desc
If you need to see the SQL running for a given spid from the results, use something like this:
declare
@spid int
, @stmt_start int
, @stmt_end int
, @sql_handle binary(20)
set @spid = XXX ...
Rest with Express.js nested router
...
You can nest routers by attaching them as middleware on an other router, with or without params.
You must pass {mergeParams: true} to the child router if you want to access the params from the parent router.
mergeParams was introduced in Expr...
Which annotation should I use: @IdClass or @EmbeddedId
...argue that this differs from a more natural language like the one promoted by IdClass. But most of the times understanding right from the query that a given field is part of the composite key is of invaluable help.
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postgresql: INSERT INTO … (SELECT * …)
...IMIT to specify top 20 rows, but I think you need to sort them using ORDER BY clause first.
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