# How is the Relationships view so responsive?
**URL:** https://gramps.discourse.group/t/how-is-the-relationships-view-so-responsive/2802
**Category:** Help
**Created:** [September 23, 2022, 5:51am UTC](https://gramps.discourse.group/t/how-is-the-relationships-view-so-responsive/2802 "2022-09-23T05:51:05Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@emyoulation](https://gramps.discourse.group/u/emyoulation)
#### Post date: [September 23, 2022, 5:51am UTC](https://gramps.discourse.group/t/how-is-the-relationships-view-so-responsive/2802/1 "2022-09-23T05:51:05Z")
How does the Relationships view populate so quickly?
When switching persons in the Relationships view using the example.gramps tree, the view mode updates on my Windoze box in less than a second.
That refresh time includes changing focus, finding the Families that have the Active Person as a child or spouse, all the people in those families, the marriage events for the Families, the birth & death events for all the people, all the Places for those events, and thumbnails for those people. Then it has to build a appropriate layout around all those objects.
All in less than a second.
It is often useful to run a filter that finds a subset of those: all the objects in one View category for immediate family of the Active Person. And to do that, Gramps requires a (divergent set of rules for each Category) complex mulit-stage custom filter. And it has a painfully slow progress bar for each stage.
What is the difference in the way the Relationship view finds this subset of the Tree? Is there a way to grab the populating method for the Relationship view and layer it into a narrow scope modality for the other views?
---
### Author:  [@emyoulation](https://gramps.discourse.group/u/emyoulation)
#### Post date: [September 23, 2022, 11:40pm UTC](https://gramps.discourse.group/t/how-is-the-relationships-view-so-responsive/2802/2 "2022-09-23T23:40:17Z")
Looking at the [gramps/plugins/view/relview.py starting at Line 618](https://github.com/gramps-project/gramps/blob/master/gramps/plugins/view/relview.py#L618), it doesn’t builds lists from queries. It calls functions to return lists of handles from that class.
So… I suppose the budding developers need a great cheatsheet so they don’t re-invent the wheel.
from [gramps/gen/lib/person.py#L883](https://github.com/gramps-project/gramps/blob/458989f47aed00ed33331c8760f8049266f3495a/gramps/gen/lib/person.py#L883)
family\_handle\_list = person.get\_family\_handle\_list()
```auto
def get_family_handle_list(self):
"""
Return the list of :class:`~.family.Family` handles in which the person
is a parent or spouse.
:returns: Returns the list of handles corresponding to the
:class:`~.family.Family` records with which the person
is associated.
:rtype: list
"""
return self.family_list
```
from [gramps/gen/lib/person.py#L934](https://github.com/gramps-project/gramps/blob/458989f47aed00ed33331c8760f8049266f3495a/gramps/gen/lib/person.py#L934)
family\_handle\_list = person.get\_parent\_family\_handle\_list()
```auto
def get_parent_family_handle_list(self):
"""
Return the list of :class:`~.family.Family` handles in which the person
is a child.
:returns: Returns the list of handles corresponding to the
:class:`~.family.Family` records with which the person is a
child.
:rtype: list
"""
return self.parent_family_list
```
---
### Author:  [@system](https://gramps.discourse.group/u/system)
#### Post date: [October 23, 2022, 11:40pm UTC](https://gramps.discourse.group/t/how-is-the-relationships-view-so-responsive/2802/3 "2022-10-23T23:40:50Z")
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