forked from DGNum/gestioCOF
90 lines
2.6 KiB
Python
90 lines
2.6 KiB
Python
import djconfig
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from django.core.exceptions import ValidationError
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from django.db import models
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class KFetConfig(object):
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"""kfet app configuration.
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Enhance isolation with backend used to store config.
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"""
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prefix = "kfet_"
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def __init__(self):
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# Set this to False again to reload the config, e.g for testing
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# purposes.
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self._conf_init = False
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def _check_init(self):
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# For initialization purposes, we call 'reload_maybe' directly
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# (normaly done once per request in middleware).
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# Note it should be called only once across requests, if you use
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# kfet_config instance below.
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if not self._conf_init:
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djconfig.reload_maybe()
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self._conf_init = True
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def __getattr__(self, key):
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self._check_init()
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if key == "subvention_cof":
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# Allows accessing to the reduction as a subvention
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# Other reason: backward compatibility
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reduction_mult = 1 - self.reduction_cof / 100
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return (1 / reduction_mult - 1) * 100
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return getattr(djconfig.config, self._get_dj_key(key))
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def list(self):
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"""Get list of kfet app configuration.
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Returns:
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(key, value) for each configuration entry as list.
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"""
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# prevent circular imports
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from kfet.forms import KFetConfigForm
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self._check_init()
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return [
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(field.label, getattr(djconfig.config, name))
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for name, field in KFetConfigForm.base_fields.items()
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]
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def _get_dj_key(self, key):
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return "{}{}".format(self.prefix, key)
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def set(self, **kwargs):
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"""Update configuration value(s).
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Args:
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**kwargs: Keyword arguments. Keys must be in kfet config.
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Config entries are updated to given values.
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"""
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# prevent circular imports
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from kfet.forms import KFetConfigForm
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self._check_init()
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# get old config
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new_cfg = KFetConfigForm().initial
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# update to new config
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for key, value in kwargs.items():
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dj_key = self._get_dj_key(key)
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if isinstance(value, models.Model):
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new_cfg[dj_key] = value.pk
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else:
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new_cfg[dj_key] = value
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# save new config
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cfg_form = KFetConfigForm(new_cfg)
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if cfg_form.is_valid():
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cfg_form.save()
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else:
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raise ValidationError(
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"Invalid values in kfet_config.set: %(fields)s",
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params={"fields": list(cfg_form.errors)},
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)
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kfet_config = KFetConfig()
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