Django: Count Queries and Query time without using connection.queries


HOME ยป Web Design

For performance monitoring I want to send the count of total
queries and the elapsed query time for each request to statsd. In
dev/staging I can use connection.queries but I obviously don't want to
enable debug on production.


Is there another way to do
this without writing a custom cursor wrapper? Anyone have experience
doing this?

I am struggling with a way to combine two queries into one (obvious
i am not an sql guru ;))


SELECT COUNT(orderid) AS
TotalAmountOfOrders
FROM tableorder
WHERE (YEAR(orderDate)
BETWEEN 2012 AND 2012)
SELECT COUNT(errorid) AS
AmountOfErrorsOnOrders
FROM tableError />WHERE (YEAR(errorDate) BETWEEN 2012 AND 2012)
/>

The problem is if i am just adding them as


SELECT
COUNT(orderid) AS ...,COUNT(errorid) AS ...
From tableorder inner
join tableError

I am not getting the total amount
but only the amount of orders with errors

Coding

While i am executing second Stored procedure with same connection
statement(Using PDO), getting the below error.

/>

=================================================

/>

SQLSTATE[HY000]:
General error: 2014 Cannot execute queries
while other unbuffered queries are active. Consider using
PDOStatement::fetchAll().
Alternatively, if your code is only
ever going to run against mysql, you may enable query buffering by
setting the
PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute.

/>

=======================================================

/>

This is my code in drupal


$conn->setAttribute(
Databases

I'm trying to capture the queries which my code submits to the
database by examining the contents of
django.db.connection.queries. For some reason though,
after all the automatically produced setup queries are logged, no
further queries are logged from my own code. The following test case
demonstrates the behavior.


from django.test import
TestCase
from django.db import reset_queries, connection />from django.contrib.auth.models import User
from django.conf
import settings
class Test1(TestCase):
def
setUp(self):
settings.DEBUG = True
def
test1(self):
self.assert_(settin
Databases

For performance monitoring I want to send the count of total
queries and the elapsed query time for each request to statsd. In
dev/staging I can use connection.queries but I obviously don't want to
enable debug on production.


Is there another way to do
this without writing a custom cursor wrapper? Anyone have experience
doing this?

Web Design

Suppose I have a Book model with a language field and a foreign key
to a Publisher model.


Currently I use a Count annotation
in a custom Publisher manager to allow me to add to the admin a
sortable column with the number of books by each publisher. (see
http://stackoverflow.com/questions/3491766/how-to-add-a-sortable-count-column-to-the-django-admin-of-a-model-with-a-many-to
)


My problem now is that I need to have a different column
count for the books published in each language.


Is there
any way to make the annotation subject to a filter of the related
model?

Databases

I've got a Python/Django application which runs quite a lot of SQL
statements. For debugging purposes, I thought I should create a
simple view for me which just lists all the SQL statements that have
been run.


According to the documentation, this code should
be enough to do that:


from django.db import
connection
connection.queries

as long as
DEBUG is True.


However, this is not giving me anything.
DEBUG is most certainly set to True. In what context is this
connection.queries stored? I'm mean, I should be able to execute one
page which executes a lot of SQL statements, and then ju

Web Design

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