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Regression since version 4.4.0

See original GitHub issue

After upgrading to version 4.4.0 i get the following exception, during selecting a timespan in the calender. When reverting back to 4.3.0 it works as usual.

SitesCalendar.js:585 TypeError: Cannot read property 'calendar' of undefined
    at TimeGridSlicer../node_modules/@fullcalendar/core/main.esm.js.Slicer._sliceDateSpan (main.esm.js:8519)
    at TimeGridSlicer.sliceDateSelection (main.esm.js:1552)
    at TimeGridSlicer../node_modules/@fullcalendar/core/main.esm.js.Slicer.sliceProps (main.esm.js:8446)
    at main.esm.js:82
    at mapHash (main.esm.js:1265)
    at ResourceTimeGrid../node_modules/@fullcalendar/resource-timegrid/main.esm.js.ResourceTimeGrid.render (main.esm.js:81)
    at ResourceTimeGrid../node_modules/@fullcalendar/core/main.esm.js.Component.receiveProps (main.esm.js:3951)
    at ResourceTimeGridView../node_modules/@fullcalendar/resource-timegrid/main.esm.js.ResourceTimeGridView.render (main.esm.js:161)
    at ResourceTimeGridView../node_modules/@fullcalendar/core/main.esm.js.Component.receiveProps (main.esm.js:3951)
    at CalendarComponent../node_modules/@fullcalendar/core/main.esm.js.CalendarComponent.renderView (main.esm.js:6298) {componentStack: "↵    in FullCalendar (at SitesCalendar.js:591)↵    in SitesCalendar"}

It looks like the https://github.com/fullcalendar/fullcalendar/blame/master/packages/core/src/common/slicing-utils.ts#L168 context refactor commit broke something in combination with how the fullcaendar-react component works.

Issue Analytics

State:
Created 4 years ago
Comments:5 (1 by maintainers)

Top GitHub Comments

5reactions

Moglumcommented, Mar 20, 2020

https://codesandbox.io/s/fullcalendar-functional-mydrf This sandbox demonstrates the error when selecting a timespan. If you change the @fullcalendar dependencies to 4.3.0, the error disappears.

And as a bonus - when you don’t use a functional React component, but rewrite it to a Class component, it works even with 4.4.0 🤯 https://codesandbox.io/s/fullcalendar-class-7u48i

0reactions

acerixcommented, May 28, 2020

Sorry for the delay in responding to your issue, I have just begun triaging on this repo. Please see this post about the state of the repo (https://github.com/fullcalendar/fullcalendar-react/issues/66) for more info.

I believe this ticket in the main repo is for the same issue which was fixed in version 4.4.1 which was just releasd: https://github.com/fullcalendar/fullcalendar/issues/5266

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