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MINOR: Add documentation for aggregate filters (#6796)

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* MINOR: Add documentation for aggregate filters

* Update 01_Data_Model_and_ORM.md

* Update 01_Data_Model_and_ORM.md
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Aaron Carlino 2017-04-19 15:44:00 +12:00 committed by GitHub
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docs/en/02_Developer_Guides/00_Model/01_Data_Model_and_ORM.md
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@ -390,6 +390,23 @@ It is also often useful to filter by all rows with either empty or null for a gi
// ... WHERE "FirstName" == '' OR "FirstName" IS NULL
// Returns rows with FirstName which is either empty or null
### Filtering by aggregates
You can use aggregate expressions in your filters, as well.
```php
// get the teams that have more than 10 players
$teams = Team::get()->filter('Players.Count():GreaterThan', 10);
// get the teams with at least one player who has scored 5 or more points
$teams = Team::get()->filter('Players.Min(PointsScored):GreaterThanOrEqual', 5);
// get the teams with players who are averaging more than 15 points
$teams = Team::get()->filter('Players.Avg(PointsScored):GreaterThan', 15);
// get the teams whose players have scored less than 300 points combined
$teams = Team::get()->filter('Players.Sum(PointsScored):LessThan', 300);
```
### filterByCallback