mod_report_affiliations: Fix traceback a non-user is sending a presence For now we won’t touch their presence instead of emiting this traceback: error Traceback[s2s]: /usr/lib/prosody/core/rostermanager.lua:275: attempt to concatenate a nil value (local 'username') stack traceback: /usr/lib/prosody/core/rostermanager.lua:275: in function 'prosody.core.rostermanager.is_user_subscribed' ...ules/mod_report_affiliations/mod_report_affiliations.lua:116: in field '?' /usr/lib/prosody/util/events.lua:81: in function </usr/lib/prosody/util/events.lua:77> (...tail calls...) /usr/lib/prosody/core/stanza_router.lua:184: in upvalue 'core_post_stanza' /usr/lib/prosody/modules/mod_presence.lua:244: in function </usr/lib/prosody/modules/mod_presence.lua:231> (...tail calls...) /usr/lib/prosody/util/events.lua:81: in function </usr/lib/prosody/util/events.lua:77> (...tail calls...) /usr/lib/prosody/core/stanza_router.lua:188: in upvalue 'core_post_stanza' /usr/lib/prosody/core/stanza_router.lua:128: in upvalue 'core_process_stanza' /usr/lib/prosody/modules/mod_s2s.lua:818: in upvalue 'func' /usr/lib/prosody/util/async.lua:149: in function </usr/lib/prosody/util/async.lua:147>

# Introduction

::: {.alert .alert-danger}
Consider using [mod_mam][doc:modules:mod_mam] together with
[mod_readonly] instead.
:::

This module logs messages to a SQL database.

SQL connection options are configured in a `message_log_sql` option,
which has the same syntax as the `sql` option for
[mod_storage_sql][doc:modules:mod_storage_sql].

# Usage

You will need to create the following table in the configured database:

``` sql
CREATE TABLE `prosodyarchive` (
        `host` TEXT,
        `user` TEXT,
        `store` TEXT,
        `id` INTEGER PRIMARY KEY AUTOINCREMENT,
        `when` INTEGER,
        `with` TEXT,
        `resource` TEXT,
        `stanza` TEXT);
```

# Compatibility

Does *NOT* work with 0.10 due to a conflict with the new archiving
support in `mod_storage_sql`·