1224132 - [Music]Invoke music in other apps for the first time, the songs list cannot be shown.

Status: VERIFIED FIXED

(Firefox OS Graveyard :: Gaia::Music, defect, P2)

Description

[SandKing]

Attachment: Bug log: logcat_1525.txt

[1.Description]:
[Aries  KKv2.5&v2.6][Flame v2.5&v2.6][Music]If there are some musics in device and user has never used Music app, the songs can not be loaded to other apps(e.g "Settings" and"Message")
See video:"Aries_v2.6.3GP"
See log:"logcat_1525.txt"
Found Time:15:25

[2.Testing Steps]: 
Precondition: There are some songs on device, and has user never invoked "Music" app.
1. Launch "Settings"->"Sound"->"Manage Tones".
2. Tap the "+" icon.
3. Observe the songs list page.

[3.Expected Result]: 
3. There should be some songs display in songs list view.

[4.Actual Result]: 
3. There is no song displays in songs list view.

[5.Reproduction build]: 
Device: Flame KK 2.5  512mb (Affected)
Build ID               20151109004552
Gaia Revision          cf646c52bb947af28329b0a100df91d1b1f2a907
Gaia Date              2015-11-09 02:55:50
Gecko Revision         https://hg.mozilla.org/releases/mozilla-

b2g44_v2_5/rev/4eafef5b80f8985c94c4a067f130d37513e1a581
Gecko Version          44.0a2
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20151109.041411
Firmware Date          Mon Nov  9 04:14:26 EST 2015
Firmware Version       v18D v4
Bootloader             L1TC000118D0

Device: Flame KK v2.6 512mb (master)(Affected)
Build ID               20151111150236
Gaia Revision          22f8023b112dfae83531b0a075ab9eb9a5444dfa
Gaia Date              2015-11-10 23:35:38
Gecko Revision         https://hg.mozilla.org/mozilla-central/rev/84a7cf29f4f14c9b359db2f7f19c0abd6a8e178e
Gecko Version          45.0a1
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20151111.182640
Firmware Date          Wed Nov 11 18:26:52 EST 2015
Firmware Version       v18D v4
Bootloader             L1TC000118D0

Device: Aries KK 2.5 (Affected)
Build ID               20151110094357
Gaia Revision          07baf613699fa6225359c7f04825c5caeb71d424
Gaia Date              2015-11-09 21:32:50
Gecko Revision         http://hg.mozilla.org/releases/mozilla-

b2g44_v2_5/rev/e14287b00a514a15418dfaa89287030c588ad19d
Gecko Version          44.0a2
Device Name            aries
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.worker.20151110.090331
Firmware Date          Tue Nov 10 09:03:39 UTC 2015
Bootloader             s1

Device: Aries KK 2.6 (master)(Affected)
Build ID               20151112014800
Gaia Revision          98f63d4cc530906fa51d839a10469006c257b998
Gaia Date              2015-11-12 02:03:26
Gecko Revision         https://hg.mozilla.org/integration/mozilla-

inbound/rev/a8ed7dd831d1969a5a1a8636e63bd93d6aeaf94a
Gecko Version          45.0a1
Device Name            aries
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.worker.20151112.011957
Firmware Date          Thu Nov 12 01:20:05 UTC 2015
Bootloader             s1


[6.Reproduction Frequency]: 
Always Recurrence,5/5

[7.TCID]: 
Free Test

[8.Note];
After 10 minutes, the songs still can not be loaded.

Comment 1

[SandKing]

Attachment: Bug video: Aries_v2.6.3GP

Comment 2

[Jim Porter (:squib)]

I'm almost completely certain this used to work. A regression range would help narrow down the problem.

Comment 3

[Sxean Lee-David [:sxean]]

NO REPRO on this build: 

Note:  after pressing the + Icon the music list propagated as expected. 

Environmental Variables:
Device: Flame 2.2
BuildID: 20151112032505
Gaia: 885647d92208fb67574ced44004ab2f29d23cb45
Gecko: e772f343b736
Gonk: bd9cb3af2a0354577a6903917bc826489050b40d
Version: 37.0 (2.2) 
Firmware Version: v18D
User Agent: Mozilla/5.0 (Mobile; rv:37.0) Gecko/37.0 Firefox/37.0

REPRO on the following builds: 

Note:  after pressing the + Icon the music did not list as expected.

Environmental Variables:
Device: Flame 2.5
BuildID: 20151109004552
Gaia: cf646c52bb947af28329b0a100df91d1b1f2a907
Gecko: 4eafef5b80f8985c94c4a067f130d37513e1a581
Gonk: 205ac4204bbbb2098a8046444acba551ba5dc75a
Version: 44.0a2 (2.5) 
Firmware Version: v18D
User Agent: Mozilla/5.0 (Mobile; rv:44.0) Gecko/44.0 Firefox/44.0

Environmental Variables:
Device: Aries 2.6
BuildID: 20151112122058
Gaia: 27bc9412ca607648bc398b25bb1ae25653b2b278
Gecko: 3cc3b1968524248450c465c4ea2ee5596ffa65f2
Gonk: a19052e4389c3ae2d8fc3e7a74a475401baacc56
Version: 45.0a1 (2.6) 
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:45.0) Gecko/45.0 Firefox/45.0

Comment 4

[Jim Porter (:squib)]

Can we narrow this down further than just 2.2 vs 2.5? I feel like it worked in 2.5 as well.

Comment 5

[Lela(Leave from Mozilla)]

I will continue to find the regression window next monday, before that, if anyone can help with this based on my current result, please go ahead, thanks. :)
Last Working Environmental Variables: 2015-10-28-21-19-46
First Broken Environmental Variables: 2015-10-31-23-32-37

Comment 6

[Hema Koka [:hema]]

Marking this P2. No songs are displayed in this scenario leading to poor and confused user experience (workaround for user is to restart the app to bring the song list back -- looks like a cache issue with fast list here)

Etiene/Wilson,

Justin is investigating. But if needs help please do the needful. Ni'ing to keep this in your radar. 

Thanks
hema

Comment 7

[Justin D'Arcangelo [:justindarc]]

This may be related to Bug 1224503 where search results can't be cleared out. In the "pick" activity, the app starts out in the Songs view. This means that a <gaia-fast-list> is rendering the list of songs in MediaDB while the app is scanning for new media. If the very first time you run the app is through the "pick" activity, the <gaia-fast-list> `model` will initially be set to an empty array. When this happens, the following error is thrown in the console:

E/Music   (11532): [JavaScript Error: "TypeError: object is undefined" {file: "app://music.gaiamobile.org/components/poplar/poplar.js" line: 287}]

However, as MediaDB scans, we re-call update()/render() in the view which in turn re-sets the `model` value of the <gaia-fast-list> to actually have the scanned content. When this happens, the <gaia-fast-list> never updates (same behavior as Bug 1224503).

As I mentioned in my comment on Bug 1224503 here https://bugzilla.mozilla.org/show_bug.cgi?id=1224503#c9 , this could quite possibly be a race where we are re-setting the `model` of <gaia-fast-list> before it is ready to accept the change. However, my knowledge of the internals of <gaia-fast-list> is somewhat limited, so this is just an educated guess at this point.

Comment 8

[Lela(Leave from Mozilla)]

b2g-inbound Regression Window:

Last Working Environmental Variables:
Device: Flame 
Build ID               20151030192729
Gaia Revision          91cac94948094cfdcd00cba5c6483e27e80cb3b0
Gaia Date              2015-10-28 20:32:15
Gecko Revision         https://hg.mozilla.org/integration/b2g-inbound/rev/3eaedda79e46530dc03b17bbaea52a2248aefe23
Gecko Version          45.0a1
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20151105.043012
Firmware Date          Thu Nov  5 04:30:24 EST 2015
Firmware Version       V18DV4
Bootloader             L1TC000118D0

First Broken Environmental Variables:
Device: Flame 
Build ID               20151031120755
Gaia Revision          717ee46c64fde7d69a1146f3c54e95b2ef20e706
Gaia Date              2015-10-29 11:34:07
Gecko Revision         https://hg.mozilla.org/integration/b2g-inbound/rev/d9bfbd50c917e7f432a4a8cb12a21dca0b96cc0a
Gecko Version          45.0a1
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20151105.043012
Firmware Date          Thu Nov  5 04:30:24 EST 2015
Firmware Version       V18DV4
Bootloader             L1TC000118D0

First Broken Gaia & Last Working Gecko - issue DOES repro
Gaia Revision          717ee46c64fde7d69a1146f3c54e95b2ef20e706
GeckoRevision         https://hg.mozilla.org/integration/b2g-inbound/rev/3eaedda79e46530dc03b17bbaea52a2248aefe23

First Broken Gecko & Last Working Gaia – issue DOES NOT repro
Gaia Revision          91cac94948094cfdcd00cba5c6483e27e80cb3b0
Gecko Revision         https://hg.mozilla.org/integration/b2g-inbound/rev/d9bfbd50c917e7f432a4a8cb12a21dca0b96cc0a

Gecko pushlog: 
https://github.com/mozilla-b2g/gaia/compare/91cac94948094cfdcd00cba5c6483e27e80cb3b0...717ee46c64fde7d69a1146f3c54e95b2ef20e706

Comment 9

[Etienne Segonzac (:etienne)]

Is there an easy way to get a JSON.stringify() version of the model that is set?

Comment 10

[GitHub Autolander Bot]

Attachment: [gaia] wilsonpage:1224132 > mozilla-b2g:master

Comment 11

[Justin D'Arcangelo [:justindarc]]

Comment on attachment 8688517 [details] [review]
[gaia] wilsonpage:1224132 > mozilla-b2g:master

Just a version bump for <gaia-fast-list> -- LGTM.

Comment 12

[Wilson Page [:wilsonpage]]

Comment on attachment 8688517 [details] [review]
[gaia] wilsonpage:1224132 > mozilla-b2g:master

https://github.com/mozilla-b2g/gaia/commit/a3ca99a6923d4e901bda637979ae9aa9d82bebc0

Comment 13

[SandKing]

This bug has been verified as pass on latest Flame master and Aries KK master by STR on comment 0.
Rate:0/10
Actual result: The songs will display in songs list view.

Device info:
Flame master 512M(Pass)
Build ID               20151119224634
Gaia Revision          94a821b49f4dca3f9321cd80e13c44c4a6696952
Gaia Date              2015-11-19 15:35:33
Gecko Revision         https://hg.mozilla.org/mozilla-central/rev/cc325db44f6f8a58604d60b746c140e73f3d8216
Gecko Version          45.0a1
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.worker.20151119.220436
Firmware Date          Thu Nov 19 22:04:46 UTC 2015
Firmware Version       v18D v4
Bootloader             L1TC000118D0

Aries KK master(Pass):
Build ID               20151120061630
Gaia Revision          94a821b49f4dca3f9321cd80e13c44c4a6696952
Gaia Date              2015-11-19 15:35:33
Gecko Revision         https://hg.mozilla.org/mozilla-central/rev/3835b568092ae3b71adc931d24928670ad7141a7
Gecko Version          45.0a1
Device Name            aries
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.worker.20151120.052332
Firmware Date          Fri Nov 20 05:23:39 UTC 2015
Bootloader             s1

Comment 14

[Wilson Page [:wilsonpage]]

Comment on attachment 8688517 [details] [review]
[gaia] wilsonpage:1224132 > mozilla-b2g:master

[Approval Request Comment]
[Bug caused by] (feature/regressing bug #):
[User impact] if declined: Song pick broken on first run
[Testing completed]: Y
[Risk to taking this patch] (and alternatives if risky): Low
[String changes made]: N

Comment 15

[Norry.L.F(Leave from Mozilla)]

Need check in to 2.5

Comment 16

[Carsten Book [:Tomcat]]

2.5 is approval-only - so need first approval before checkin

Comment 17

[Mahendra Potharaju [:mahe]]

Comment on attachment 8688517 [details] [review]
[gaia] wilsonpage:1224132 > mozilla-b2g:master

Approved for 2.5 as this is marked as a P2. 

Thanks

Comment 18

[Carsten Book [:Tomcat]]

for 2.5 https://github.com/mozilla-b2g/gaia/commit/ed2b6547619e0d70b321f691b3b3b753a1b3614a

Comment 19

[Lela(Leave from Mozilla)]

This bug has been verified as "pass" on the latest build of Aries KK v2.5 and Flame KK v2.5 512mb by the STR in comment 0 .

Actual result: There are some songs display in songs list view in step 3.
See attachment: Verified_Aries_KK_v2.5.3gp
Reproduce rate: 0/10.

Device: Aries KK v2.5( Pass )
Build ID               20151223153111
Gaia Revision          8db2cdd9eb9b42932c4dfc86d109b3e46c220809
Gaia Date              2015-12-23 13:30:29
Gecko Revision         http://hg.mozilla.org/releases/mozilla-b2g44_v2_5/rev/6fac3536a96a87185a6415d6ae2c36a85612e863
Gecko Version          44.0
Device Name            aries
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.worker.20151223.144147
Firmware Date          Wed Dec 23 14:41:54 UTC 2015
Bootloader             s1

Device: Flame KK v2.5 512mb( Pass )
Build ID               20151223152613
Gaia Revision          8db2cdd9eb9b42932c4dfc86d109b3e46c220809
Gaia Date              2015-12-23 13:30:29
Gecko Revision         http://hg.mozilla.org/releases/mozilla-b2g44_v2_5/rev/6fac3536a96a87185a6415d6ae2c36a85612e863
Gecko Version          44.0
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.worker.20151223.143931
Firmware Date          Wed Dec 23 14:39:41 UTC 2015
Firmware Version       v18D v4
Bootloader             L1TC000118D0

Comment 20

[Lela(Leave from Mozilla)]

Attachment: Verified video: Verified_Aries_kk_v2.5.3gp