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Fix bug where subscriptions would not update on query change #1249

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merged 4 commits into from
Apr 21, 2023
Merged

Fix bug where subscriptions would not update on query change #1249

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f9d64eb
Fix bug where subscriptions would not update on query change
MetRonnie Feb 21, 2023
d782fe6
Update changelog
MetRonnie Feb 22, 2023
ce869a7
Ensure lumino tabs are created with unique IDs
MetRonnie Mar 3, 2023
0440c23
Merge branch 'master' into subscriptions
MetRonnie Mar 3, 2023
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6 changes: 6 additions & 0 deletions CHANGES.md
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Expand Up @@ -18,6 +18,12 @@ ones in. -->
[#1187](https://github.com/cylc/cylc-ui/pull/1187) - Improved the workflow
filtering menu in the sidebar.

### Fixes

[#1249](https://github.com/cylc/cylc-ui/pull/1249) - Fix tasks not loading
when navigating between workflows in the standalone `#/tree/` and `#/table/`
views.

-------------------------------------------------------------------------------
## __cylc-ui-1.5.0 (<span actions:bind='release-date'>Released 2023-02-20</span>)__

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27 changes: 0 additions & 27 deletions src/components/cylc/workflow/index.js
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9 changes: 9 additions & 0 deletions src/mixins/subscriptionComponent.js
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Expand Up @@ -35,8 +35,17 @@ export default {
],
beforeMount () {
this.$workflowService.subscribe(this)
this.$workflowService.startSubscriptions()
},
beforeDestroy () {
this.$workflowService.unsubscribe(this)
},
watch: {
query () {
// if the query changes, unsubscribe & re-subscribe
this.$workflowService.unsubscribe(this)
this.$workflowService.subscribe(this)
this.$workflowService.startSubscriptions()
}
Comment on lines 36 to +49
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Ah heck, something I hadn't thought about is what happens when there are multiple "views" in the workspace.

Currently we always initiate a workspace with a single view (because we don't remember the previous tab layout and haven't got default layouts sorted yet). But soon we will be initiating views with multiple components.

I think that calling startSubscriptions in either beforeMount or watch.query would result in subscribing and unsubscribing multiple times as each view registers its subscription in turn. This is probably why this call was bound to navigation events rather than component lifecycle events (as we did briefly remember tab layout by accident in an earlier version).

So we want to delay running $workflowService.startSubscriptions() until $workflowService.subscribe(this) has run for all views, not just the first. I'm not sure how to do this without introducing an arbitrary timeout.

Perhaps the parent view should be responsible for registering subscriptions before the child component is mounted?

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Looking at

cylc-ui/src/services/workflow.service.js

Lines 241 to 250 in b9fe3a8

/**
* Start any pending subscriptions.
*/
startSubscriptions () {
const pendingSubscriptions = Object.values(this.subscriptions)
.filter(subscription => {
return subscription.observable === null || subscription.reload
})
pendingSubscriptions.forEach(subscription => this.startSubscription(subscription))
}

There is no difference between calling both $workflowService.subscribe(vm) and $workflowService.startSubscriptions() multiple times vs calling the former multiple times and the latter only once.

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Sadly that means the problem is larger than anticipated. We will need some mechanism for delaying the subscription start until all of the components have registered their sub-subscriptions to avoid creating/cancelling subs multiple times on startup.

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@MetRonnie MetRonnie Mar 7, 2023 •
edited
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Is this ok to go in, with a follow-up issue for dealing with multiple subscriptions?

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#1248 isn't really a problem so there's no real pressure to get this in?

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@MetRonnie MetRonnie Mar 7, 2023 •
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Aye but in the Vue 3 upgrade this also fixes the critical problem of tasks not loading when navigating between different workflows in the Workspace view

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Where did this discussion end up?

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I think this is currently being used within the Vue 3 work.

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IMO it would be sensible to merge this before Vue 3 if we are happy it works. vuejs/router#1710:

Routing Lifecycle and Component Lifecycle are independent. Callbacks passed to hooks should therefore also be independent and not rely on the order.

Merging this now would take it out of the already-large diff of the Vue 3 PR.

I suggest we open a separate issue to document Oliver's point

We will need some mechanism for delaying the subscription start until all of the components have registered their sub-subscriptions to avoid creating/cancelling subs multiple times on startup.

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#1278

}
}
40 changes: 0 additions & 40 deletions src/mixins/subscriptionView.js
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4 changes: 1 addition & 3 deletions src/views/Dashboard.vue
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Expand Up @@ -168,7 +168,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
import { mapState, mapGetters } from 'vuex'
import { mdiBook, mdiBookMultiple, mdiBookOpenVariant, mdiCog, mdiHubspot, mdiTable } from '@mdi/js'
import pageMixin from '@/mixins/index'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import subscriptionComponentMixin from '@/mixins/subscriptionComponent'
import { createUrl } from '@/utils/urls'
import { WorkflowState, WorkflowStateOrder } from '@/model/WorkflowState.model'
Expand All @@ -179,8 +178,7 @@ export default {
name: 'Dashboard',
mixins: [
pageMixin,
subscriptionComponentMixin,
subscriptionViewMixin
subscriptionComponentMixin
],
metaInfo () {
return {
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4 changes: 1 addition & 3 deletions src/views/Graph.vue
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Expand Up @@ -96,7 +96,6 @@ import gql from 'graphql-tag'
import { mapGetters } from 'vuex'
import pageMixin from '@/mixins/index'
import graphqlMixin from '@/mixins/graphql'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import subscriptionComponentMixin from '@/mixins/subscriptionComponent'
import SubscriptionQuery from '@/model/SubscriptionQuery.model'
// import CylcTreeCallback from '@/services/treeCallback'
Expand Down Expand Up @@ -203,8 +202,7 @@ export default {
mixins: [
pageMixin,
graphqlMixin,
subscriptionComponentMixin,
subscriptionViewMixin
subscriptionComponentMixin
],
name: 'Graph',
components: {
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2 changes: 0 additions & 2 deletions src/views/Guide.vue
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Expand Up @@ -191,11 +191,9 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
import Task from '@/components/cylc/Task'
import Job from '@/components/cylc/Job'
import { TaskStateUserOrder } from '@/model/TaskState.model'
import subscriptionViewMixin from '@/mixins/subscriptionView'

export default {
name: 'Guide',
mixins: [subscriptionViewMixin],
components: {
task: Task,
job: Job
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6 changes: 2 additions & 4 deletions src/views/Log.vue
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Expand Up @@ -89,8 +89,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
import { mdiFileDocumentMultipleOutline } from '@mdi/js'
import pageMixin from '@/mixins/index'
import graphqlMixin from '@/mixins/graphql'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import subscriptionMixin from '@/mixins/subscriptionComponent'
import subscriptionComponentMixin from '@/mixins/subscriptionComponent'
import LogComponent from '@/components/cylc/log/Log'
import SubscriptionQuery from '@/model/SubscriptionQuery.model'
import { LOGS_SUBSCRIPTION } from '@/graphql/queries'
Expand All @@ -116,8 +115,7 @@ export default {
mixins: [
pageMixin,
graphqlMixin,
subscriptionMixin,
subscriptionViewMixin
subscriptionComponentMixin
],
name: 'Log',
components: {
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4 changes: 1 addition & 3 deletions src/views/Table.vue
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Expand Up @@ -32,7 +32,6 @@ import { mapState, mapGetters } from 'vuex'
import { mdiTable } from '@mdi/js'
import pageMixin from '@/mixins/index'
import graphqlMixin from '@/mixins/graphql'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import subscriptionComponentMixin from '@/mixins/subscriptionComponent'
import TableComponent from '@/components/cylc/table/Table.vue'
import SubscriptionQuery from '@/model/SubscriptionQuery.model'
Expand All @@ -43,8 +42,7 @@ export default {
mixins: [
pageMixin,
graphqlMixin,
subscriptionComponentMixin,
subscriptionViewMixin
subscriptionComponentMixin
],
name: 'Table',
components: {
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4 changes: 1 addition & 3 deletions src/views/Tree.vue
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Expand Up @@ -38,7 +38,6 @@ import { mapState, mapGetters } from 'vuex'
import { mdiFileTree } from '@mdi/js'
import pageMixin from '@/mixins/index'
import graphqlMixin from '@/mixins/graphql'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import subscriptionComponentMixin from '@/mixins/subscriptionComponent'
import SubscriptionQuery from '@/model/SubscriptionQuery.model'
import TreeComponent from '@/components/cylc/tree/Tree'
Expand All @@ -48,8 +47,7 @@ export default {
mixins: [
pageMixin,
graphqlMixin,
subscriptionComponentMixin,
subscriptionViewMixin
subscriptionComponentMixin
],
name: 'Tree',
components: {
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4 changes: 1 addition & 3 deletions src/views/UserProfile.vue
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Expand Up @@ -215,15 +215,13 @@ import { decreaseFontSize, getCurrentFontSize, increaseFontSize, resetFontSize }
import { mdiCog, mdiFormatFontSizeDecrease, mdiFormatFontSizeIncrease } from '@mdi/js'
import Job from '@/components/cylc/Job'
import JobState from '@/model/JobState.model'
import subscriptionViewMixin from '@/mixins/subscriptionView'

// TODO: update where user preferences are stored after #335

export default {
name: 'UserProfile',
mixins: [
pageMixin,
subscriptionViewMixin
pageMixin
],
components: {
Job
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4 changes: 1 addition & 3 deletions src/views/Workflows.vue
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Expand Up @@ -25,16 +25,14 @@ import GScan from '@/components/cylc/gscan/GScan'
import { GSCAN_DELTAS_SUBSCRIPTION } from '@/graphql/queries'
import pageMixin from '@/mixins/index'
import subscriptionComponentMixin from '@/mixins/subscriptionComponent'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import SubscriptionQuery from '@/model/SubscriptionQuery.model'

export default {
name: 'Workflows',

mixins: [
pageMixin,
subscriptionComponentMixin,
subscriptionViewMixin
subscriptionComponentMixin
],

components: {
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4 changes: 2 additions & 2 deletions src/views/WorkflowsTable.vue
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Expand Up @@ -72,7 +72,7 @@ import { mapState, mapGetters } from 'vuex'
import i18n from '@/i18n'
import { mdiTable } from '@mdi/js'
import pageMixin from '@/mixins/index'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import subscriptionMixin from '@/mixins/subscription'
import SubscriptionQuery from '@/model/SubscriptionQuery.model'
import { WORKFLOWS_TABLE_DELTAS_SUBSCRIPTION } from '@/graphql/queries'
import WorkflowIcon from '@/components/cylc/gscan/WorkflowIcon'
Expand All @@ -81,7 +81,7 @@ export default {
name: 'WorkflowsTable',
mixins: [
pageMixin,
subscriptionViewMixin
subscriptionMixin
],
metaInfo () {
return {
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15 changes: 4 additions & 11 deletions src/views/Workspace.vue
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Expand Up @@ -51,12 +51,12 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.

<script>
import Vue from 'vue'
import { uniqueId } from 'lodash'
import { each, iter } from '@lumino/algorithm'
import pageMixin from '@/mixins'
import graphqlMixin from '@/mixins/graphql'
import subscriptionViewMixin from '@/mixins/subscriptionView'
import subscriptionMixin from '@/mixins/subscription'
import ViewState from '@/model/ViewState.model'
import { createWidgetId } from '@/components/cylc/workflow/index'
import Lumino from '@/components/cylc/workflow/Lumino'
import Toolbar from '@/components/cylc/workflow/Toolbar'
import TableView from '@/views/Table'
Expand All @@ -70,7 +70,7 @@ export default {
mixins: [
pageMixin,
graphqlMixin,
subscriptionViewMixin
subscriptionMixin
],

components: {
Expand Down Expand Up @@ -176,16 +176,9 @@ export default {
}
Vue.set(
this.widgets,
createWidgetId(),
uniqueId(),
{ view, initialOptions }
)
this.$nextTick(() => {
// Views use navigation-guards to start the pending subscriptions. But we don't have
// this in this view. We must pretend we are doing the beforeRouteEnter here, and
// call the .startSubscriptions function, so that the WorkflowService will take care
// of loading the pending subscriptions (like the ones created by the new view).
this.$workflowService.startSubscriptions()
})
},
/**
* Remove all the widgets present in the UI.
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3 changes: 2 additions & 1 deletion tests/unit/components/cylc/drawer.vue.spec.js
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Expand Up @@ -17,7 +17,7 @@

import { expect } from 'chai'
import { createLocalVue, mount } from '@vue/test-utils'
import Drawer from '../../../../src/components/cylc/Drawer'
import Drawer from '@/components/cylc/Drawer'

import Vue from 'vue'
import Vuetify from 'vuetify'
Expand All @@ -37,6 +37,7 @@ const mountFunction = options => {
register () {},
unregister () {},
subscribe () {},
startSubscriptions () {},
introspection: Promise.resolve({
mutations: [
{ args: [] }
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27 changes: 0 additions & 27 deletions tests/unit/components/cylc/workflow/index.spec.js
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