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79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
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# Copyright 2019 Camptocamp SA
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# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
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import logging
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from flectra import api, fields, models
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_logger = logging.getLogger(__name__)
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class MultiStepWizard(models.AbstractModel):
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"""Mixin to ease the creation of multisteps wizards
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_selection_state must return all possible step of
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the wizard.
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For each state but final, there must be a method named
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"state_exit_X" where X is the name of the state. Each
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of these method must set the next state in self.state.
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For each state but start, there may be a method named
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"state_previous_X" where X is the name of the state. Each
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of these method must set the next state in self.state.
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The final state has no related method because the view
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should only display a button to close the wizard.
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open_next, open_previous and _reopen_self should not need to be
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overidden, but _selection_state and state_exit_start
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likely will need to.
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"""
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_name = "multi.step.wizard.mixin"
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_description = "Multi Steps Wizard Mixin"
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state = fields.Selection(
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selection="_selection_state", default="start", required=True
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)
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allow_back = fields.Boolean(compute="_compute_allow_back")
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@api.depends("state")
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def _compute_allow_back(self):
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for record in self:
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record.allow_back = getattr(
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record, "state_previous_%s" % record.state, False
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)
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@api.model
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def _selection_state(self):
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return [("start", "Start"), ("final", "Final")]
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def open_next(self):
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state_method = getattr(self, f"state_exit_{self.state}", None)
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if state_method is None:
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raise NotImplementedError(f"No method defined for state {self.state}")
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state_method()
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return self._reopen_self()
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def open_previous(self):
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state_method = getattr(self, f"state_previous_{self.state}", None)
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if state_method is None:
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raise NotImplementedError(f"No method defined for state {self.state}")
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state_method()
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return self._reopen_self()
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def _reopen_self(self):
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return {
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"type": "ir.actions.act_window",
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"res_model": self._name,
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"res_id": self.id,
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"view_mode": "form",
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"target": "new",
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}
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def state_exit_start(self):
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self.state = "final"
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