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`trends` : Managing trends¶

The lino_xl.lib.trends plugin adds functionality for keeping track of "trending events" in different "areas".

This is a tested document. The following instructions are used for initialization:

>>> import lino
>>> lino.startup('lino_book.projects.avanti1.settings')
>>> from lino.api.doctest import *
>>> from django.db.models import Q

Usage ¶

When using this plugin, the application developer should set the Plugin.subject_model and add EventsBySubject to the detail layout of this model.

Reference ¶

class lino_xl.lib.trends.TrendArea¶: Represents a possible choice for the trend_area field of a TrendStage.

class lino_xl.lib.trends.TrendStage¶

trend_area¶: Pointer to the TrendArea.

subject_column¶

Whether this stage should cause subject column to be added .

A subject column is a virtual column on the Plugin.subject_model that shows the date of the first event for a given trend stage and subject.

class lino_xl.lib.trends.TrendEvent¶

subject¶: The subject we are talking about.

user¶: The user who entered this data.

event_date¶: The date when the subject reached the stage.

trend_area¶: Pointer to the TrendArea.

trend_stage¶: Pointer to the TrendStage.

remark¶: A free text field.

class lino_xl.lib.trends.EventsBySubject¶: Shows all trend events of that subject.

class lino_xl.lib.trends.TrendObservable¶: Mixin that should be inherited by the Plugin.subject_model so that Lino automatically adds virtual columns for each trend stage having