openstack/deb-python-sqlalchemy-utils
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Fix line lengths

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This commit is contained in:
Konsta Vesterinen
2014-03-19 15:52:01 +02:00
parent 8d873cab98
commit ac819c2683
1 changed files with 17 additions and 9 deletions
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26
sqlalchemy_utils/aggregates.py
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@@ -31,10 +31,12 @@ Features
* Automatically updates aggregate columns when aggregated values change
* Supports aggregate values through arbitrary number levels of relations
* Highly optimized: uses single query per transaction per aggregate column
* Aggregated columns can be of any data type and use any selectable scalar expression
* Aggregated columns can be of any data type and use any selectable scalar
expression
.. _column_property: http://docs.sqlalchemy.org/en/latest/orm/mapper_config.html#using-column-property
.. _column_property:
http://docs.sqlalchemy.org/en/latest/orm/mapper_config.html#using-column-property
.. _counter_culture: https://github.com/magnusvk/counter_culture
.. _stackoverflow reply by Michael Bayer:
http://stackoverflow.com/questions/13693872/
@@ -84,9 +86,12 @@ Simple aggregates
Custom aggregate expressions
----------------------------
Aggregate expression can be virtually any SQL expression not just a simple function taking one parameter. You can try things such as subqueries and different kinds of functions.
Aggregate expression can be virtually any SQL expression not just a simple
function taking one parameter. You can try things such as subqueries and
different kinds of functions.
In the following example we have a Catalog of products where each catalog knows the net worth of its products.
In the following example we have a Catalog of products where each catalog
knows the net worth of its products.
::
@@ -163,8 +168,9 @@ Now the net_worth column of Catalog model will be automatically whenever:
Multiple aggregates per class
-----------------------------
Sometimes you may need to define multiple aggregate values for same class. If you need
to define lots of relationships pointing to same class, remember to define the relationships as viewonly when possible.
Sometimes you may need to define multiple aggregate values for same class. If
you need to define lots of relationships pointing to same class, remember to
define the relationships as viewonly when possible.
::
@@ -208,7 +214,8 @@ to define lots of relationships pointing to same class, remember to define the r
Many-to-Many aggregates
-----------------------
Aggregate expressions also support many-to-many relationships. The usual use scenarios includes things such as:
Aggregate expressions also support many-to-many relationships. The usual use
scenarios includes things such as:
1. Friend count of a user
2. Group count where given user belongs to
@@ -258,8 +265,9 @@ Aggregate expressions also support many-to-many relationships. The usual use sce
Multi-level aggregates
----------------------
Aggregates can span accross multiple relationships. In the following example each
Catalog has a net_worth which is the sum of all products in all categories.
Aggregates can span accross multiple relationships. In the following example
each Catalog has a net_worth which is the sum of all products in all
categories.
::