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75 lines
2.6 KiB
Python
75 lines
2.6 KiB
Python
3 years ago
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from django.contrib.auth.models import User
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from django.db import models
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from compensation.models import AbstractCompensation
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from konova.settings import DEFAULT_SRID_RLP, LANIS_LINK_TEMPLATE
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from user.models import UserActionLogEntry
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class Ema(AbstractCompensation):
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"""
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EMA = Ersatzzahlungsmaßnahme
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(compensation actions from payments)
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Until 2015 the EMA was the data object to keep track of any compensation, which has been funded by payments
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previously paid. In 2015 another organization got in charge of this, which led to the creation of the data object
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MAE (which is basically the same, just renamed in their system) to differ between the 'old' payment funded ones and
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the new. For historical reasons, we need to keep EMAs in our system, since there are still entries done to this day,
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which have been performed somewhere before 2015 and therefore needs to be entered.
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Further information:
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https://snu.rlp.de/de/foerderungen/massnahmen-aus-ersatzzahlungen/uebersicht-mae/
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EMA therefore holds data like a compensation: actions, before-/after-states, deadlines, ...
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"""
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# Users having access on this object
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# Not needed in regular Compensation since their access is defined by the linked intervention's access
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users = models.ManyToManyField(
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User,
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help_text="Users having access (shared with)"
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)
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# Refers to "verzeichnen"
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recorded = models.OneToOneField(
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UserActionLogEntry,
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on_delete=models.SET_NULL,
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null=True,
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blank=True,
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help_text="Holds data on user and timestamp of this action",
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related_name="+"
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)
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def __str__(self):
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return "{}".format(self.identifier)
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def save(self, *args, **kwargs):
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if self.identifier is None or len(self.identifier) == 0:
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# Create new identifier
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new_id = self._generate_new_identifier()
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while Ema.objects.filter(identifier=new_id).exists():
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new_id = self._generate_new_identifier()
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self.identifier = new_id
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super().save(*args, **kwargs)
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def get_LANIS_link(self) -> str:
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""" Generates a link for LANIS depending on the geometry
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Returns:
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"""
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try:
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geom = self.geometry.geom.transform(DEFAULT_SRID_RLP, clone=True)
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x = geom.centroid.x
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y = geom.centroid.y
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zoom_lvl = 16
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except AttributeError:
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# If no geometry has been added, yet.
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x = 1
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y = 1
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zoom_lvl = 6
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return LANIS_LINK_TEMPLATE.format(
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zoom_lvl,
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x,
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y,
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)
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