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| 8 <title>Coverage for appengine/findit/model/versioned_model: 100%</title> |
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| 23 <h1>Coverage for <b>appengine/findit/model/versioned_model</b> : |
| 24 <span class='pc_cov'>100%</span> |
| 25 </h1> |
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rtial</span> |
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| 178 |
| 179 </td> |
| 180 <td class='text' valign='top'> |
| 181 <p id='t1' class='pln'><span class='com'># Copyright 2015 The Chromium Authors.
All rights reserved.</span><span class='strut'> </span></p> |
| 182 <p id='t2' class='pln'><span class='com'># Use of this source code is governed b
y a BSD-style license that can be</span><span class='strut'> </span></p> |
| 183 <p id='t3' class='pln'><span class='com'># found in the LICENSE file.</span><spa
n class='strut'> </span></p> |
| 184 <p id='t4' class='pln'><span class='strut'> </span></p> |
| 185 <p id='t5' class='stm run hide_run'><span class='str'>"""Provides
a model to support versioned entities in datastore.</span><span class='strut'>&
nbsp;</span></p> |
| 186 <p id='t6' class='pln'><span class='strut'> </span></p> |
| 187 <p id='t7' class='pln'><span class='str'>Idea: use a root model entity to keep t
rack of the most recent version of a</span><span class='strut'> </span></p> |
| 188 <p id='t8' class='pln'><span class='str'>versioned entity, and make the versione
d entities and the root model entity in</span><span class='strut'> </span><
/p> |
| 189 <p id='t9' class='pln'><span class='str'>the same entity group so that they coul
d be read and written in a transaction.</span><span class='strut'> </span><
/p> |
| 190 <p id='t10' class='pln'><span class='str'>"""</span><span class='
strut'> </span></p> |
| 191 <p id='t11' class='pln'><span class='strut'> </span></p> |
| 192 <p id='t12' class='stm run hide_run'><span class='key'>import</span> <span class
='nam'>logging</span><span class='strut'> </span></p> |
| 193 <p id='t13' class='pln'><span class='strut'> </span></p> |
| 194 <p id='t14' class='stm run hide_run'><span class='key'>from</span> <span class='
nam'>google</span><span class='op'>.</span><span class='nam'>appengine</span><sp
an class='op'>.</span><span class='nam'>api</span> <span class='key'>import</spa
n> <span class='nam'>datastore_errors</span><span class='strut'> </span></p
> |
| 195 <p id='t15' class='stm run hide_run'><span class='key'>from</span> <span class='
nam'>google</span><span class='op'>.</span><span class='nam'>appengine</span><sp
an class='op'>.</span><span class='nam'>ext</span> <span class='key'>import</spa
n> <span class='nam'>ndb</span><span class='strut'> </span></p> |
| 196 <p id='t16' class='stm run hide_run'><span class='key'>from</span> <span class='
nam'>google</span><span class='op'>.</span><span class='nam'>appengine</span><sp
an class='op'>.</span><span class='nam'>runtime</span> <span class='key'>import<
/span> <span class='nam'>apiproxy_errors</span><span class='strut'> </span>
</p> |
| 197 <p id='t17' class='pln'><span class='strut'> </span></p> |
| 198 <p id='t18' class='pln'><span class='strut'> </span></p> |
| 199 <p id='t19' class='stm run hide_run'><span class='key'>class</span> <span class=
'nam'>_GroupRoot</span><span class='op'>(</span><span class='nam'>ndb</span><spa
n class='op'>.</span><span class='nam'>Model</span><span class='op'>)</span><spa
n class='op'>:</span><span class='strut'> </span></p> |
| 200 <p id='t20' class='pln'> <span class='str'>"""Root entity o
f a group to support versioned children."""</span><span class='st
rut'> </span></p> |
| 201 <p id='t21' class='pln'> <span class='com'># Key id of the most recent chi
ld entity in the datastore. It is monotonically</span><span class='strut'>
</span></p> |
| 202 <p id='t22' class='pln'> <span class='com'># increasing and is 0 if no chi
ld is present.</span><span class='strut'> </span></p> |
| 203 <p id='t23' class='stm run hide_run'> <span class='nam'>current</span> <sp
an class='op'>=</span> <span class='nam'>ndb</span><span class='op'>.</span><spa
n class='nam'>IntegerProperty</span><span class='op'>(</span><span class='nam'>i
ndexed</span><span class='op'>=</span><span class='nam'>False</span><span class=
'op'>,</span> <span class='nam'>default</span><span class='op'>=</span><span cla
ss='num'>0</span><span class='op'>)</span><span class='strut'> </span></p> |
| 204 <p id='t24' class='pln'><span class='strut'> </span></p> |
| 205 <p id='t25' class='pln'><span class='strut'> </span></p> |
| 206 <p id='t26' class='stm run hide_run'><span class='key'>class</span> <span class=
'nam'>VersionedModel</span><span class='op'>(</span><span class='nam'>ndb</span>
<span class='op'>.</span><span class='nam'>Model</span><span class='op'>)</span>
<span class='op'>:</span><span class='strut'> </span></p> |
| 207 <p id='t27' class='pln'> <span class='str'>"""A model that
supports versioning.</span><span class='strut'> </span></p> |
| 208 <p id='t28' class='pln'><span class='strut'> </span></p> |
| 209 <p id='t29' class='pln'><span class='str'> Subclass will automatically be
versioned, if use GetVersion() to</span><span class='strut'> </span></p> |
| 210 <p id='t30' class='pln'><span class='str'> read and use Save() to write.</
span><span class='strut'> </span></p> |
| 211 <p id='t31' class='pln'><span class='str'> """</span><span
class='strut'> </span></p> |
| 212 <p id='t32' class='pln'><span class='strut'> </span></p> |
| 213 <p id='t33' class='stm run hide_run'> <span class='op'>@</span><span class
='nam'>property</span><span class='strut'> </span></p> |
| 214 <p id='t34' class='pln'> <span class='key'>def</span> <span class='nam'>ve
rsion</span><span class='op'>(</span><span class='nam'>self</span><span class='o
p'>)</span><span class='op'>:</span><span class='strut'> </span></p> |
| 215 <p id='t35' class='stm run hide_run'> <span class='key'>return</spa
n> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>key</
span><span class='op'>.</span><span class='nam'>integer_id</span><span class='op
'>(</span><span class='op'>)</span> <span class='key'>if</span> <span class='nam
'>self</span><span class='op'>.</span><span class='nam'>key</span> <span class='
key'>else</span> <span class='num'>0</span><span class='strut'> </span></p> |
| 216 <p id='t36' class='pln'><span class='strut'> </span></p> |
| 217 <p id='t37' class='stm run hide_run'> <span class='op'>@</span><span class
='nam'>classmethod</span><span class='strut'> </span></p> |
| 218 <p id='t38' class='stm run hide_run'> <span class='key'>def</span> <span c
lass='nam'>GetVersion</span><span class='op'>(</span><span class='nam'>cls</span
><span class='op'>,</span> <span class='nam'>version</span><span class='op'>=</s
pan><span class='nam'>None</span><span class='op'>)</span><span class='op'>:</sp
an><span class='strut'> </span></p> |
| 219 <p id='t39' class='pln'> <span class='str'>"""Return
s a version of the entity, the latest if version=None."""</span><
span class='strut'> </span></p> |
| 220 <p id='t40' class='stm run hide_run'> <span class='key'>assert</spa
n> <span class='key'>not</span> <span class='nam'>ndb</span><span class='op'>.</
span><span class='nam'>in_transaction</span><span class='op'>(</span><span class
='op'>)</span><span class='strut'> </span></p> |
| 221 <p id='t41' class='pln'><span class='strut'> </span></p> |
| 222 <p id='t42' class='stm run hide_run'> <span class='nam'>root_key</s
pan> <span class='op'>=</span> <span class='nam'>cls</span><span class='op'>.</s
pan><span class='nam'>_GetRootKey</span><span class='op'>(</span><span class='op
'>)</span><span class='strut'> </span></p> |
| 223 <p id='t43' class='stm run hide_run'> <span class='nam'>root</span>
<span class='op'>=</span> <span class='nam'>root_key</span><span class='op'>.</
span><span class='nam'>get</span><span class='op'>(</span><span class='op'>)</sp
an><span class='strut'> </span></p> |
| 224 <p id='t44' class='stm run hide_run'> <span class='key'>if</span> <
span class='key'>not</span> <span class='nam'>root</span> <span class='key'>or</
span> <span class='key'>not</span> <span class='nam'>root</span><span class='op'
>.</span><span class='nam'>current</span><span class='op'>:</span><span class='s
trut'> </span></p> |
| 225 <p id='t45' class='stm run hide_run'> <span class='key'>retu
rn</span> <span class='nam'>None</span><span class='strut'> </span></p> |
| 226 <p id='t46' class='pln'><span class='strut'> </span></p> |
| 227 <p id='t47' class='stm run hide_run'> <span class='key'>if</span> <
span class='nam'>version</span> <span class='key'>is</span> <span class='nam'>No
ne</span><span class='op'>:</span><span class='strut'> </span></p> |
| 228 <p id='t48' class='stm run hide_run'> <span class='nam'>vers
ion</span> <span class='op'>=</span> <span class='nam'>root</span><span class='o
p'>.</span><span class='nam'>current</span><span class='strut'> </span></p> |
| 229 <p id='t49' class='stm run hide_run'> <span class='key'>elif</span>
<span class='nam'>version</span> <span class='op'><</span> <span class='num'
>1</span><span class='op'>:</span><span class='strut'> </span></p> |
| 230 <p id='t50' class='pln'> <span class='com'># Return No
ne for versions < 1, which causes exceptions in ndb.Key()</span><span class='
strut'> </span></p> |
| 231 <p id='t51' class='stm run hide_run'> <span class='key'>retu
rn</span> <span class='nam'>None</span><span class='strut'> </span></p> |
| 232 <p id='t52' class='pln'><span class='strut'> </span></p> |
| 233 <p id='t53' class='stm run hide_run'> <span class='key'>return</spa
n> <span class='nam'>ndb</span><span class='op'>.</span><span class='nam'>Key</s
pan><span class='op'>(</span><span class='nam'>cls</span><span class='op'>,</spa
n> <span class='nam'>version</span><span class='op'>,</span> <span class='nam'>p
arent</span><span class='op'>=</span><span class='nam'>root_key</span><span clas
s='op'>)</span><span class='op'>.</span><span class='nam'>get</span><span class=
'op'>(</span><span class='op'>)</span><span class='strut'> </span></p> |
| 234 <p id='t54' class='pln'><span class='strut'> </span></p> |
| 235 <p id='t55' class='stm run hide_run'> <span class='op'>@</span><span class
='nam'>classmethod</span><span class='strut'> </span></p> |
| 236 <p id='t56' class='pln'> <span class='key'>def</span> <span class='nam'>Ge
tLatestVersionNumber</span><span class='op'>(</span><span class='nam'>cls</span>
<span class='op'>)</span><span class='op'>:</span><span class='strut'> </sp
an></p> |
| 237 <p id='t57' class='stm run hide_run'> <span class='key'>return</spa
n> <span class='nam'>cls</span><span class='op'>.</span><span class='nam'>_GetRo
otKey</span><span class='op'>(</span><span class='op'>)</span><span class='op'>.
</span><span class='nam'>get</span><span class='op'>(</span><span class='op'>)</
span><span class='op'>.</span><span class='nam'>current</span><span class='strut
'> </span></p> |
| 238 <p id='t58' class='pln'><span class='strut'> </span></p> |
| 239 <p id='t59' class='stm run hide_run'> <span class='key'>def</span> <span c
lass='nam'>Save</span><span class='op'>(</span><span class='nam'>self</span><spa
n class='op'>)</span><span class='op'>:</span><span class='strut'> </span><
/p> |
| 240 <p id='t60' class='pln'> <span class='str'>"""Saves
the current entity, but as a new version."""</span><span class='s
trut'> </span></p> |
| 241 <p id='t61' class='stm run hide_run'> <span class='nam'>root_key</s
pan> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</
span><span class='nam'>_GetRootKey</span><span class='op'>(</span><span class='o
p'>)</span><span class='strut'> </span></p> |
| 242 <p id='t62' class='stm run hide_run'> <span class='nam'>root</span>
<span class='op'>=</span> <span class='nam'>root_key</span><span class='op'>.</
span><span class='nam'>get</span><span class='op'>(</span><span class='op'>)</sp
an> <span class='key'>or</span> <span class='nam'>self</span><span class='op'>.<
/span><span class='nam'>_GetRootModel</span><span class='op'>(</span><span class
='op'>)</span><span class='op'>(</span><span class='nam'>key</span><span class='
op'>=</span><span class='nam'>root_key</span><span class='op'>)</span><span clas
s='strut'> </span></p> |
| 243 <p id='t63' class='pln'><span class='strut'> </span></p> |
| 244 <p id='t64' class='stm run hide_run'> <span class='key'>def</span>
<span class='nam'>SaveData</span><span class='op'>(</span><span class='op'>)</sp
an><span class='op'>:</span><span class='strut'> </span></p> |
| 245 <p id='t65' class='stm run hide_run'> <span class='key'>if</
span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>ke
y</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(<
/span><span class='op'>)</span><span class='op'>:</span><span class='strut'>&nbs
p;</span></p> |
| 246 <p id='t66' class='stm run hide_run'> <span class='ke
y'>return</span> <span class='nam'>False</span> <span class='com'># The en
tity exists, should retry.</span><span class='strut'> </span></p> |
| 247 <p id='t67' class='stm run hide_run'> <span class='nam'>ndb<
/span><span class='op'>.</span><span class='nam'>put_multi</span><span class='op
'>(</span><span class='op'>[</span><span class='nam'>self</span><span class='op'
>,</span> <span class='nam'>root</span><span class='op'>]</span><span class='op'
>)</span><span class='strut'> </span></p> |
| 248 <p id='t68' class='stm run hide_run'> <span class='key'>retu
rn</span> <span class='nam'>True</span><span class='strut'> </span></p> |
| 249 <p id='t69' class='pln'><span class='strut'> </span></p> |
| 250 <p id='t70' class='stm run hide_run'> <span class='key'>def</span>
<span class='nam'>SetNewKey</span><span class='op'>(</span><span class='op'>)</s
pan><span class='op'>:</span><span class='strut'> </span></p> |
| 251 <p id='t71' class='stm run hide_run'> <span class='nam'>root
</span><span class='op'>.</span><span class='nam'>current</span> <span class='op
'>+=</span> <span class='num'>1</span><span class='strut'> </span></p> |
| 252 <p id='t72' class='stm run hide_run'> <span class='nam'>self
</span><span class='op'>.</span><span class='nam'>key</span> <span class='op'>=<
/span> <span class='nam'>ndb</span><span class='op'>.</span><span class='nam'>Ke
y</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>.
</span><span class='nam'>__class__</span><span class='op'>,</span> <span class='
nam'>root</span><span class='op'>.</span><span class='nam'>current</span><span c
lass='op'>,</span> <span class='nam'>parent</span><span class='op'>=</span><span
class='nam'>root_key</span><span class='op'>)</span><span class='strut'> <
/span></p> |
| 253 <p id='t73' class='pln'><span class='strut'> </span></p> |
| 254 <p id='t74' class='stm run hide_run'> <span class='nam'>SetNewKey</
span><span class='op'>(</span><span class='op'>)</span><span class='strut'> 
;</span></p> |
| 255 <p id='t75' class='stm run hide_run'> <span class='key'>while</span
> <span class='nam'>True</span><span class='op'>:</span><span class='strut'>&nbs
p;</span></p> |
| 256 <p id='t76' class='stm run hide_run'> <span class='key'>whil
e</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'
>key</span><span class='op'>.</span><span class='nam'>get</span><span class='op'
>(</span><span class='op'>)</span><span class='op'>:</span><span class='strut'>&
nbsp;</span></p> |
| 257 <p id='t77' class='stm run hide_run'> <span class='na
m'>SetNewKey</span><span class='op'>(</span><span class='op'>)</span><span class
='strut'> </span></p> |
| 258 <p id='t78' class='pln'><span class='strut'> </span></p> |
| 259 <p id='t79' class='stm run hide_run'> <span class='key'>try<
/span><span class='op'>:</span><span class='strut'> </span></p> |
| 260 <p id='t80' class='stm run hide_run'> <span class='ke
y'>if</span> <span class='nam'>ndb</span><span class='op'>.</span><span class='n
am'>transaction</span><span class='op'>(</span><span class='nam'>SaveData</span>
<span class='op'>,</span> <span class='nam'>retries</span><span class='op'>=</sp
an><span class='num'>0</span><span class='op'>)</span><span class='op'>:</span><
span class='strut'> </span></p> |
| 261 <p id='t81' class='stm run hide_run'> <span cl
ass='key'>return</span> <span class='nam'>self</span><span class='op'>.</span><s
pan class='nam'>key</span><span class='strut'> </span></p> |
| 262 <p id='t82' class='stm run hide_run'> <span class='key'>exce
pt</span> <span class='op'>(</span><span class='strut'> </span></p> |
| 263 <p id='t83' class='pln'> <span class='nam'>dat
astore_errors</span><span class='op'>.</span><span class='nam'>InternalError</sp
an><span class='op'>,</span><span class='strut'> </span></p> |
| 264 <p id='t84' class='pln'> <span class='nam'>dat
astore_errors</span><span class='op'>.</span><span class='nam'>Timeout</span><sp
an class='op'>,</span><span class='strut'> </span></p> |
| 265 <p id='t85' class='pln'> <span class='nam'>dat
astore_errors</span><span class='op'>.</span><span class='nam'>TransactionFailed
Error</span><span class='op'>)</span> <span class='key'>as</span> <span class='n
am'>e</span><span class='op'>:</span><span class='strut'> </span></p> |
| 266 <p id='t86' class='pln'> <span class='com'># https://
cloud.google.com/appengine/docs/python/datastore/transactions</span><span class=
'strut'> </span></p> |
| 267 <p id='t87' class='pln'> <span class='com'># states t
he result is ambiguous, it could have succeeded.</span><span class='strut'> 
;</span></p> |
| 268 <p id='t88' class='stm run hide_run'> <span class='na
m'>logging</span><span class='op'>.</span><span class='nam'>info</span><span cla
ss='op'>(</span><span class='str'>'Transaction likely failed: %s'</span>
<span class='op'>,</span> <span class='nam'>e</span><span class='op'>)</span><sp
an class='strut'> </span></p> |
| 269 <p id='t89' class='stm run hide_run'> <span class='key'>exce
pt</span> <span class='op'>(</span><span class='strut'> </span></p> |
| 270 <p id='t90' class='pln'> <span class='nam'>api
proxy_errors</span><span class='op'>.</span><span class='nam'>CancelledError</sp
an><span class='op'>,</span><span class='strut'> </span></p> |
| 271 <p id='t91' class='pln'> <span class='nam'>dat
astore_errors</span><span class='op'>.</span><span class='nam'>BadRequestError</
span><span class='op'>,</span><span class='strut'> </span></p> |
| 272 <p id='t92' class='pln'> <span class='nam'>Run
timeError</span><span class='op'>)</span> <span class='key'>as</span> <span clas
s='nam'>e</span><span class='op'>:</span><span class='strut'> </span></p> |
| 273 <p id='t93' class='stm run hide_run'> <span class='na
m'>logging</span><span class='op'>.</span><span class='nam'>info</span><span cla
ss='op'>(</span><span class='str'>'Transaction failure: %s'</span><span
class='op'>,</span> <span class='nam'>e</span><span class='op'>)</span><span cla
ss='strut'> </span></p> |
| 274 <p id='t94' class='pln'> <span class='key'>else</span><span
class='op'>:</span><span class='strut'> </span></p> |
| 275 <p id='t95' class='stm run hide_run'> <span class='na
m'>SetNewKey</span><span class='op'>(</span><span class='op'>)</span><span class
='strut'> </span></p> |
| 276 <p id='t96' class='pln'><span class='strut'> </span></p> |
| 277 <p id='t97' class='stm run hide_run'> <span class='op'>@</span><span class
='nam'>classmethod</span><span class='strut'> </span></p> |
| 278 <p id='t98' class='pln'> <span class='key'>def</span> <span class='nam'>_G
etRootModel</span><span class='op'>(</span><span class='nam'>cls</span><span cla
ss='op'>)</span><span class='op'>:</span><span class='strut'> </span></p> |
| 279 <p id='t99' class='pln'> <span class='str'>"""Return
s a root model that can be used for versioned entities."""</span>
<span class='strut'> </span></p> |
| 280 <p id='t100' class='stm run hide_run'> <span class='nam'>root_model
_name</span> <span class='op'>=</span> <span class='str'>'%sRoot'</span>
<span class='op'>%</span> <span class='nam'>cls</span><span class='op'>.</span>
<span class='nam'>__name__</span><span class='strut'> </span></p> |
| 281 <p id='t101' class='pln'><span class='strut'> </span></p> |
| 282 <p id='t102' class='stm run hide_run'> <span class='key'>class</spa
n> <span class='nam'>_RootModel</span><span class='op'>(</span><span class='nam'
>_GroupRoot</span><span class='op'>)</span><span class='op'>:</span><span class=
'strut'> </span></p> |
| 283 <p id='t103' class='pln'><span class='strut'> </span></p> |
| 284 <p id='t104' class='stm run hide_run'> <span class='op'>@</s
pan><span class='nam'>classmethod</span><span class='strut'> </span></p> |
| 285 <p id='t105' class='pln'> <span class='key'>def</span> <span
class='nam'>_get_kind</span><span class='op'>(</span><span class='nam'>cls</spa
n><span class='op'>)</span><span class='op'>:</span><span class='strut'> </
span></p> |
| 286 <p id='t106' class='stm run hide_run'> <span class='k
ey'>return</span> <span class='nam'>root_model_name</span><span class='strut'>&n
bsp;</span></p> |
| 287 <p id='t107' class='pln'><span class='strut'> </span></p> |
| 288 <p id='t108' class='stm run hide_run'> <span class='key'>return</sp
an> <span class='nam'>_RootModel</span><span class='strut'> </span></p> |
| 289 <p id='t109' class='pln'><span class='strut'> </span></p> |
| 290 <p id='t110' class='stm run hide_run'> <span class='op'>@</span><span clas
s='nam'>classmethod</span><span class='strut'> </span></p> |
| 291 <p id='t111' class='pln'> <span class='key'>def</span> <span class='nam'>_
GetRootKey</span><span class='op'>(</span><span class='nam'>cls</span><span clas
s='op'>)</span><span class='op'>:</span><span class='strut'> </span></p> |
| 292 <p id='t112' class='stm run hide_run'> <span class='key'>return</sp
an> <span class='nam'>ndb</span><span class='op'>.</span><span class='nam'>Key</
span><span class='op'>(</span><span class='nam'>cls</span><span class='op'>.</sp
an><span class='nam'>_GetRootModel</span><span class='op'>(</span><span class='o
p'>)</span><span class='op'>,</span> <span class='num'>1</span><span class='op'>
)</span><span class='strut'> </span></p> |
| 293 |
| 294 </td> |
| 295 </tr> |
| 296 </table> |
| 297 </div> |
| 298 |
| 299 <div id='footer'> |
| 300 <div class='content'> |
| 301 <p> |
| 302 <a class='nav' href='index.html'>« index</a> <a c
lass='nav' href='http://nedbatchelder.com/code/coverage'>coverage.py v3.7.1</a> |
| 303 </p> |
| 304 </div> |
| 305 </div> |
| 306 |
| 307 </body> |
| 308 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2003423003:
Merge branch 'blacklist_paths' into only_analyze_top_n_frames
Base URL: https://chromium.googlesource.com/infra/infra.git@blacklist_paths