Limit retained history about deltachat-android HOT 20 CLOSED

This is planned. In fact, we already have an option for it (currently hidden at "System->Delta Chat App-info / Memory / Manage memory")

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if we implement this feature, we should have different timeouts until messages from the "Contact requests" and messages from other chats are deleted (deleted from the device, not from the server), this would target #132 then.

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In fact, we already have an option for it (currently hidden at "System->Delta Chat App-info / Memory / Manage memory")

At my device I see here only "System->Delta Chat / App-info / Memory / Delete memory" ??
No possibility to manage something.

Waiting urgently for an automatic feature ;-)

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well, the ui has changed the last months :)

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My proposal for a handy function:

1. IMPORTANT: make messages stickable or pinable first (I don't know the best wording ;-) ).
   That means that a message can be marked manually and then it is not touched by an automatic garbage collection. This enables the user to keep important messages!
   I think for that function database has to be extended?
2. introduce an option to set max number of messages in a chat's setting (and show somewhere current number of messages in a chat).
3. trigger the garbage collection whether manually or automatic
   (with new message in a chat or once per day or even with a button?)

Comments welcome ;-)

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Maybe this issue is better moved to the core?

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yes, however, issues cannot be moved on github. so, i prefer most times to leave things unsorted over having fragmentation :)

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EDIT proposal for a handy function:

1. IMPORTANT: use starring of messages as it is foreseen yet.
   That means that a message which is starred is not touched by an automatic garbage collection. This enables the user to keep important messages!
2. Introduce an option to set max number of messages in a chat's setting (and show somewhere current number of messages in a chat).
3. Trigger the garbage collection whether manually or automatic.
   (with new message arriving in chat or per interval or even with a button to do manually?)

EDIT (07/24/2018)

4. Add a compression function (vacuum) for internal data base

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The last comment looks identical to what you wrote three messages ago, and what you posted at deltachat/deltachat-core#120 [consolidated] (auto-)archive / delete (support continuous daily usage)

And one UI point in deltachat/deltachat-core#120 is:

• UI feature to auto-archive older messages from chats (default those exceeding a 100 messages count?)

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In my last post 1. has been updated in wording

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Updated my last bigger comment (list item 4)

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With my own experience now while updating DC and the need of using the backup function for that, I've been running nearly into a memory constraint and reimporting data has been at high risk not to finalize any more.
I'm using DC for a year now and database grows and grows. 1GB (database file only) is reached meanwhile.
With this comment I want to remind that this issue here is important because there is no possiblity to shrink the database file by deleting messages. Especially standard users have no chance to do anything except new installation of DC with an empty new database!

The database compression (Point 4. / vacuum function) should be attacked as soon as possible!

And finally as a 5th point I want to propose an archive funktion to a(some) second database file(s) which could be opened from DC to look for older archieved messages and/or copied from the device to another storage location.

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6. it should be possible to define the external SD storage card for attachments.

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Maybe open different issues for 4. and 6.?

The other points are part of deltachat/deltachat-core#120
Should I also add 5. there, so all (auto) archiving and deleting stuff is kept together, and this issue can be closed?

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ok, added 5. to deltachat/deltachat-core#120

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Point 4/5/6 are the technical functions which complete point 1-3 (user functions). Only with 4-6 the other functions really fulfills their intention to release and free space (!)

And yes, maybe it is worth to move them to a separate issue. Will do that later ;-)

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As I saw @r10s wants to keep this issue open to handle all this stuff. And therefore I included all ideas to that here ;-)

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I don't know, the issues are clearly unsorted and fragmented, and thus there is no clear path, and streamlined progress on the issues is much harder (with limited on/off time constrains). Quickly solvable topics could be lined up better, when things are sorted out.

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yes, please leave this issue open.
btw. i think many issues are fine, i use the title and the first text for orientation when coming back to an issue.
eg. this issue is very fine: it has a clear title and handles only one aspect.

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as this affects desktop as well as android, i've moved this to the core, see deltachat/deltachat-core#244

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