Uncaught TypeError: Cannot read properties of undefined (reading 'data')

[erikbjoern]

Describe the bug

Uncaught error at src/connection/Connection.ts:45 in the source code:

vuex-orm.esm-bundler.js:2298 Uncaught TypeError: Cannot read properties of undefined (reading 'data')
    at Connection.get (vuex-orm.esm-bundler.js:2298:62)
    at eval (eval at cashRows (cash.ts:1:1), <anonymous>:1:53)
    at cashRows (cash.ts:504:5)
    at wrappedGetter (vuex.esm.js:881:12)
    at Vue.<anonymous> (vuex.esm.js:140:12)
    at Watcher2.get (vue.runtime.esm.js:4473:25)
    at Watcher2.evaluate (vue.runtime.esm.js:4578:21)
    at Vue.computedGetter [as cash/cashRows] (vue.runtime.esm.js:4830:17)
    at Object.get [as cash/cashRows] (vuex.esm.js:671:39)
    at VueComponent.mappedGetter (vuex.esm.js:1026:26)

It's calling return this.database.store.state[connection][entity].data in src/connection/Connection.ts:45.

We currently have five models in VuexORM and at the point in time where this method was called, only four of them existed on state[connection] - I know that at least one of them had data stored in it at the time, and I'm almost sure the other three had too, since they are populated from network requests that load initial state. But the cashRow model is only used in frontend, and it wasn't populated with any data yet.

Steps to reproduce the bug

I cannot even reproduce it myself anymore. I suspected that the problem was caused by a Vue.$watch called from within a created hook (options API), but I'm not sure. It was not set to { immediate: true } either. It is watching a vuex getter which returns store.$repo(models.cashRow).all()

Expected behaviour

I expected this.$repo(model).all() to always be callable and return an empty array if no data is found

Versions

• "@vuex-orm/core": "^1.0.0-draft.16"
• "vue": "2.6.10"