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Add limit() details to datamodel.md

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Adam Judd 2012-11-26 23:59:31 -08:00
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docs/en/topics/datamodel.md
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@ -237,6 +237,22 @@ use case could be when you want to find all the members that does not exist in a
// ... Finding all members that does not belong to $group. // ... Finding all members that does not belong to $group.
$otherMembers = Member::get()->subtract($group->Members()); $otherMembers = Member::get()->subtract($group->Members());
### Limit
You can limit the amount of records returned in a DataList by using the `limit()` method.
:::php
// Returning the first 5 members, sorted alphabetically by Surname
$members = Member::get()->sort('Surname')->limit(5);
`limit()` accepts two arguments, the first being the amount of results you want returned, with an optional second
parameter to specify the offset, which allows you to tell the system where to start getting the results from. The
offset, if not provided as an argument, will default to 0.
:::php
// Return 5 members starting from the 5th result
$members = Member::get()->sort('Surname')->limit(5, 4);
### Raw SQL options for advanced users ### Raw SQL options for advanced users
Occasionally, the system described above won't let you do exactly what you need to do. In these situtations, we have Occasionally, the system described above won't let you do exactly what you need to do. In these situtations, we have