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Limit form history records (bug 494952, r=thunder)

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--HG--
extra : rebase_source : c3e983d30a14efd972eea2651a59be76924da256
This commit is contained in:
Anant Narayanan 2009-07-14 12:28:18 -07:00
parent 5ad22f9709
commit 7cd35a2c36
1 changed files with 21 additions and 3 deletions
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24
services/sync/modules/engines/forms.js
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@ -47,6 +47,7 @@ Cu.import("resource://weave/util.js");
Cu.import("resource://weave/engines.js");
Cu.import("resource://weave/stores.js");
Cu.import("resource://weave/trackers.js");
Cu.import("resource://weave/base_records/collection.js");
Cu.import("resource://weave/type_records/forms.js");
function FormEngine() {
@ -67,9 +68,15 @@ FormEngine.prototype = {
},
/* Wipe cache when sync finishes */
_syncFinish: function FormEngine__syncFinish() {
_syncFinish: function FormEngine__syncFinish(error) {
this._store.clearFormCache();
SyncEngine.prototype._syncFinish.call(this);
// Only leave 1 month's worth of form history
this._tracker.resetScore();
let coll = new Collection(this.engineURL, this._recordObj);
coll.older = this.lastSync - 2592000; // 60*60*24*30
coll.full = 0;
coll.delete();
},
_recordLike: function SyncEngine__recordLike(a, b) {
@ -111,7 +118,18 @@ FormStore.prototype = {
},
get _formStatement() {
let stmnt = this._formDB.createStatement("SELECT * FROM moz_formhistory");
// This is essentially:
// SELECT * FROM moz_formhistory ORDER BY 1.0 * (lastUsed - minLast) /
// (maxLast - minLast) * timesUsed / minTimes DESC LIMIT 200
let stmnt = this._formDB.createStatement(
"SELECT * FROM moz_formhistory ORDER BY 1.0 * (lastUsed - \
(SELECT lastUsed FROM moz_formhistory ORDER BY lastUsed ASC LIMIT 1)) / \
((SELECT lastUsed FROM moz_formhistory ORDER BY lastUsed DESC LIMIT 1) - \
(SELECT lastUsed FROM moz_formhistory ORDER BY lastUsed ASC LIMIT 1)) * \
timesUsed / (SELECT timesUsed FROM moz_formhistory ORDER BY timesUsed DESC LIMIT 1) \
DESC LIMIT 200"
);
this.__defineGetter__("_formStatement", function() stmnt);
return stmnt;
},