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Commit
31cb5abf
authored
Mar 09, 2014
by
Dudás Ádám
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storage: make is_in_use into property
parent
b88a5c9f
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-3
circle/storage/models.py
+4
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circle/storage/models.py
View file @
31cb5abf
...
...
@@ -175,13 +175,14 @@ class Disk(AclBase, TimeStampedModel):
return
any
((
not
i
.
is_deletable
()
for
i
in
self
.
derivatives
.
all
()))
@property
def
is_in_use
(
self
):
"""
Returns
if disk is attached to an active VM.
"""
True
if disk is attached to an active VM.
'In use' means the disk is attached to a VM which is not STOPPED, as
any other VMs leave the disk in an inconsistent state.
"""
return
any
(
[
i
.
state
!=
'STOPPED'
for
i
in
self
.
instance_set
.
all
()]
)
return
any
(
i
.
state
!=
'STOPPED'
for
i
in
self
.
instance_set
.
all
()
)
def
get_exclusive
(
self
):
"""Get an instance of the disk for exclusive usage.
...
...
@@ -432,7 +433,7 @@ class Disk(AclBase, TimeStampedModel):
if
self
.
type
not
in
mapping
.
keys
():
raise
self
.
WrongDiskTypeError
(
self
.
type
)
if
self
.
is_in_use
()
:
if
self
.
is_in_use
:
raise
self
.
DiskInUseError
(
self
)
# from this point on, the caller has to guarantee that the disk is not
...
...
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