Last change
on this file since 2730 was
1644,
checked in by broder, 16 years ago
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I still want to see all VMs, even the ones without an ACL
|
File size:
1.3 KB
|
Line | |
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1 | """Exceptions for the web interface.""" |
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2 | |
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3 | import time |
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4 | from invirt import database |
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5 | from invirt.database import Machine, MachineAccess |
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6 | |
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7 | import controls |
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8 | |
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9 | def cachedproperty(func): |
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10 | name = '__cache_' + func.__name__ + '_' + str(id(func)) |
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11 | def getter(self): |
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12 | try: |
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13 | return getattr(self, name) |
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14 | except AttributeError: |
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15 | value = func(self) |
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16 | setattr(self, name, value) |
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17 | return value |
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18 | return property(getter) |
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19 | |
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20 | class State(object): |
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21 | """State for a request""" |
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22 | def __init__(self, user, isadmin=False): |
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23 | self.username = user |
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24 | self.isadmin = isadmin |
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25 | |
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26 | def getMachines(self): |
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27 | if self.isadmin: |
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28 | return Machine.query().all() |
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29 | else: |
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30 | return Machine.query().join('acl').filter_by(user=self.username) |
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31 | |
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32 | machines = cachedproperty(getMachines) |
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33 | xmlist_raw = cachedproperty(lambda self: controls.getList()) |
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34 | xmlist = cachedproperty(lambda self: |
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35 | dict((m, self.xmlist_raw[m.name]) |
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36 | for m in self.machines |
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37 | if m.name in self.xmlist_raw)) |
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38 | |
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39 | def clear(self): |
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40 | """Clear the state so future accesses reload it.""" |
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41 | for attr in list(self.__dict__): |
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42 | if attr.startswith('__cache_'): |
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43 | delattr(self, attr) |
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