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ID

0036445

Type

Category

Severity

Reproducibility

Date Submitted

Last Update

defect

[Retail Modules] Web POS

major

always

2017-07-07 11:37

2017-07-13 10:53

Reporter

malsasua

View Status

public

Assigned To

ranjith_qualiantech_com

Priority

normal

Resolution

fixed

Fixed in Version

Status

closed

Fix in branch

Fixed in SCM revision

Projection

none

ETA

none

Target Version

OS

Any

Database

Any

Java version

OS Version

Database version

Ant version

Product Version

SCM revision

Review Assigned To

migueldejuana

Regression level

Regression date

Regression introduced in release

Regression introduced by commit

Triggers an Emergency Pack

No

Summary

0036445: many listeners are being created for change event in scrollable table when lines are not added in the last position

Description

When orderlines are created and they are inserted not in the last position (because a customization)[attached], then the method _createComponentForModel of ScrollableComponent component is creating listeners for events change and updateview many times for lines which already have it.

Steps To Reproduce

see attachment

Proposed Solution

Option 1 (preferred)

Test it carefully!! Create a static function. Maybe backbone will detect that your "on" is against a function which is already being used as a listener, so it will not create the listener

    this.func_checkAll = function (col) {
      //if the same collection is used by different components and one of them has been destroyed, the event is ignored
      if (this.destroyed) {
        if (this.collection) {
          this.collection.off('checkAll', this.func_checkAll);
        }
        return true;
      }
      this.collection.each(function (model) {
        model.trigger('check');
      });
    };
    this.collection.on('checkAll', this.func_checkAll, this);

Option 2

When creating listerners, first check if a model is already connected to a listener function. If it is, remove the listener (off) and then create again the listener (on).

example:
    if (!this.func_focus) {
      this.func_focus = function () {
        //stuff
      };
    }
    this.task.off('focusCalculated', this.func_focus);
    this.task.on('focusCalculated', this.func_focus);
    //end workaround

Tags

No tags attached.

hookPerformanceProblem.txt [^] (401 bytes) 2017-07-07 11:37 [Show Content] [Hide Content]

OB.UTIL.HookManager.registerHook('OBPOS_PostAddProductToOrder', function(args, c) {
    var order = args.receipt;
    if(!order.get('lines').__proto__.comparator){
        order.get('lines').__proto__.comparator = function(line){
            return -line.get('product').get('originalStandardPrice');
      };
    }
    order.get('lines').sort();
    OB.UTIL.HookManager.callbackExecutor(args, c);
});

Relationships [ Relation Graph ] [ Dependency Graph ]

Notes
(0098055) hgbot (developer) 2017-07-13 08:13	Repository: erp/pmods/org.openbravo.mobile.core Changeset: cb08b24b56b58ef9c9998840d4e302041f31b42a Author: Ranjith S R <ranjith <at> qualiantech.com> Date: Thu Jul 13 11:42:37 2017 +0530 URL: http://code.openbravo.com/erp/pmods/org.openbravo.mobile.core/rev/cb08b24b56b58ef9c9998840d4e302041f31b42a [^] Fixed issue 36445 : Validate duplicate listeners in OB Scrollable Table * In OBScrollable table, duplicate listeners should be avoided when component is created multiple times for same model --- M web/org.openbravo.mobile.core/source/component/ob-scrollabletable.js ---

(0098061) migueldejuana (developer) 2017-07-13 10:53	Tested and reviewed

Issue History
Date Modified	Username	Field	Change
2017-07-07 11:37	malsasua	New Issue
2017-07-07 11:37	malsasua	Assigned To	=> Retail
2017-07-07 11:37	malsasua	File Added: hookPerformanceProblem.txt
2017-07-07 11:37	malsasua	Resolution time	=> 1501192800
2017-07-07 11:37	malsasua	Triggers an Emergency Pack	=> No
2017-07-07 11:42	Practics	Issue Monitored: Practics
2017-07-10 15:49	jmonfort	Issue Monitored: jmonfort
2017-07-12 14:17	ranjith_qualiantech_com	Assigned To	Retail => ranjith_qualiantech_com
2017-07-12 14:17	ranjith_qualiantech_com	Status	new => scheduled
2017-07-13 08:13	hgbot	Checkin
2017-07-13 08:13	hgbot	Note Added: 0098055
2017-07-13 08:13	hgbot	Status	scheduled => resolved
2017-07-13 08:13	hgbot	Resolution	open => fixed
2017-07-13 08:13	hgbot	Fixed in SCM revision	=> http://code.openbravo.com/erp/pmods/org.openbravo.mobile.core/rev/cb08b24b56b58ef9c9998840d4e302041f31b42a [^]
2017-07-13 10:53	migueldejuana	Review Assigned To	=> migueldejuana
2017-07-13 10:53	migueldejuana	Note Added: 0098061
2017-07-13 10:53	migueldejuana	Status	resolved => closed

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