The new locateUsersWatchingTitle implementation could end up returning
thousands of users, currently on enwiki there are 25 titles with more
than 10k subscribed users and aprox 550 titles with more than 1k subscribed
users.
This switches the user collection to an iterator based implementation so that
we no longer need to have the entire users list at any one time.
Change-Id: I3d3fa9328f348bb48682d3658622952ce82d3925
Replace implementation specific code with generalized user-locator
implementations that can be re-used by more notifications in other
extensions.
This patch adjusts the `user-locators` notification parameter to allow
arrays which facilitate passing options to the locator.
Previously(still works):
'user-locators' => array( 'foo', 'bar' ),
New functionality:
'user-locators' => array(
'foo',
array( 'bar', 42 )
)
In the second example the callback specified by `bar` will receive
an EchoEvent as the first argument and array( 42 ) as its second
argument.
Change-Id: I7305279bc91d1e40e7054e2fd42a819a35526b82
