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from plugin.models import SchedulerTask, SchedulerJob |
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from plugin.preferences.options.core.base.base import Option |
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import logging |
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log = logging.getLogger(__name__) |
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class SchedulerOption(Option): |
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def __init__(self, preferences, task=None, job=None): |
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super(SchedulerOption, self).__init__(preferences, job) |
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self._task = task |
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@property |
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def value(self): |
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if self._option is None: |
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log.warn('Tried to retrieve value from an option without "get()"') |
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return None |
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return self._option.trigger |
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def get(self, account=None): |
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# Verify get() call is valid |
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if self.scope == 'account': |
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if account is None: |
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raise ValueError('Account option requires the "account" parameter') |
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if not self._validate_account(account): |
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raise ValueError('Invalid value for "account" parameter: %r' % account) |
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if self.scope == 'server' and account is not None: |
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raise ValueError("Server option can't be called with the \"account\" parameter") |
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# Get/Create `SchedulerTask` |
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task, _ = SchedulerTask.get_or_create( |
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key=self.key |
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) |
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# Get/Create `SchedulerJob` |
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job, _ = SchedulerJob.get_or_create( |
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account=account or 0, |
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task=task, |
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defaults={ |
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'trigger': self.default |
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} |
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) |
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if job.trigger and job.due_at is None: |
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job.due_at = self.get_next(job) |
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job.save() |
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return self._clone(task, job) |
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def update(self, value, account=None, emit=True): |
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if self.scope == 'account': |
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if account is None: |
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raise ValueError('Account option requires the "account" parameter') |
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if not self._validate_account(account): |
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raise ValueError('Invalid value for "account" parameter: %r' % account) |
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if self.scope == 'server' and account is not None: |
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raise ValueError("Server option can't be called with the \"account\" parameter") |
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# Get/Create `SchedulerTask` |
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task, _ = SchedulerTask.get_or_create( |
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key=self.key |
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) |
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# Get/Create `SchedulerJob` |
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job, _ = SchedulerJob.get_or_create( |
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account=account or 0, |
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task=task |
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) |
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# Update job |
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self.update_trigger(job, value) |
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# Emit database change to handler (if enabled) |
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if emit: |
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self._preferences.on_database_changed(self.key, value, account=account) |
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def update_trigger(self, job, value): |
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if job.trigger == value: |
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# Trigger hasn't changed |
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return |
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# Update `trigger` and `due_at` properties |
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job.trigger = value |
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job.due_at = self.get_next(job) |
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# Save changes |
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job.save() |
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@classmethod |
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def get_next(cls, job): |
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if job.trigger is None: |
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return None |
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return job.next_at() |
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Methods which raise
NotImplementedError
should be overridden in concrete child classes.