moved generic history table into base framework

Author: saemideluxe

basxconnect/core/layouts/editperson/common/history_tab.py

@@ -1,139 +1,9 @@
-from itertools import chain
-
-from django.conf import settings
-from django.core.exceptions import FieldDoesNotExist
-from django.db.models.fields.related import RelatedField
-
-try:
-    from itertools import pairwise
-except ImportError:
-    # python<3.10 compatability
-    from itertools import tee
-
-    def pairwise(iterable):
-        a, b = tee(iterable)
-        next(b, None)
-        return zip(a, b)
-
-
-import htmlgenerator as hg
 from basxbread import layout
 from django.utils.translation import gettext_lazy as _
 
 from basxconnect.core.layouts.editperson.common import utils
 
 R = layout.grid.Row
-C = layout.grid.Col
-
-
-def changes(c):
-    if c["row"][0] is not None and c["row"][1] is not None:
-        return list(c["row"][0].diff_against(c["row"][1]).changes)
-    return ()
-
-
-def haschanges(a, b):
-    return a is not None and b is not None and len(a.diff_against(b).changes) > 0
-
-
-def fieldname(c, model):
-    try:
-        return model._meta.get_field(c["change"].field).verbose_name
-    except FieldDoesNotExist:
-        return c["change"].field.replace("_", " ").capitalize()
-
-
-def newfieldvalue(c, model):
-    try:
-        field = model._meta.get_field(c["change"].field)
-        if isinstance(field, RelatedField):
-            try:
-                return field.related_model.objects.get(id=int(c["change"].new))
-            except field.related_model.DoesNotExist:
-                return hg.SPAN(_("<Value has been deleted>"), style="color: red")
-    except FieldDoesNotExist:
-        pass
-    return c["change"].new
-
-
-def oldfieldvalue(c, model):
-    try:
-        field = model._meta.get_field(c["change"].field)
-        if isinstance(field, RelatedField):
-            ret = field.related_model.objects.filter(id=int(c["change"].old)).first()
-            return ret or hg.SPAN(_("<Value has been deleted>"), style="color: red")
-    except FieldDoesNotExist:
-        pass
-    return c["change"].old
-
-
-def diff_table(model, historylist, showObjectLabel=None):
-    def historyentries(c):
-        return (
-            (i, j)
-            for i, j in pairwise(chain(historylist(c), [None]))
-            if haschanges(i, j)
-        )
-
-    return layout.components.datatable.DataTable(
-        row_iterator=hg.F(historyentries),
-        columns=[
-            layout.components.datatable.DataTableColumn(
-                _("Date"),
-                layout.localize(layout.localtime(hg.C("row")[0].history_date).date()),
-            ),
-            layout.components.datatable.DataTableColumn(
-                _("Time"),
-                layout.localize(layout.localtime(hg.C("row")[0].history_date).time()),
-            ),
-            layout.components.datatable.DataTableColumn(
-                _("User"),
-                hg.C("row")[0].history_user,
-            ),
-            *(
-                [
-                    layout.components.datatable.DataTableColumn(
-                        _("Object"),
-                        hg.F(lambda c: showObjectLabel(c["row"][0].instance)),
-                    )
-                ]
-                if showObjectLabel is not None
-                else []
-            ),
-            layout.components.datatable.DataTableColumn(
-                _("Changes"),
-                hg.UL(
-                    hg.Iterator(
-                        hg.F(changes),
-                        "change",
-                        hg.LI(
-                            hg.SPAN(
-                                hg.F(lambda c: fieldname(c, model(c))),
-                                style="font-weight: 600",
-                            ),
-                            ": ",
-                            hg.SPAN(
-                                hg.If(
-                                    hg.C("change").old,
-                                    hg.F(lambda c: oldfieldvalue(c, model(c))),
-                                    settings.HTML_NONE,
-                                ),
-                                style="text-decoration: line-through;",
-                            ),
-                            " -> ",
-                            hg.SPAN(
-                                hg.If(
-                                    hg.C("change").new,
-                                    hg.F(lambda c: newfieldvalue(c, model(c))),
-                                    settings.HTML_NONE,
-                                )
-                            ),
-                        ),
-                    ),
-                ),
-            ),
-        ],
-    )
 
 
 def history_tab():
@@ -152,7 +22,7 @@ def historyentries(c):
         utils.grid_inside_tab(
             R(
                 utils.tiling_col(
-                    diff_table(
+                    layout.history_table.diff_table(
                         lambda c: type(c["object"]), historyentries
                     ).with_toolbar(_("Changes"))
                 )