Inline fragments
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GraphQL's permits through , through objects being available as and . Eduflow uses inline fragments across the various .
Eduflow activities all have Activity.title, so all activities inherit from ActivityInterface.
{
course(id: "00000000-5945-95c7-65fc-a9747b200320") {
flows {
activities {
... on ActivityInterface {
title
}
}
}
}
}{
"data": {
"course": {
"flows": [
{
"activities": [
{
"title": "Welcome to the root-level Activity"
}
]
},
{
"activities": [
{
"title": "Learn about paper"
},
{
"title": "Environmental friendliness"
},
{
"title": "Climate change"
}
]
},
{
"activities": [
{
"title": "Introduction to sales"
},
{
"title": "CRM technology"
},
{
"title": "Funnel configuration"
}
]
}
]
}
}
}Using specific activity fragments act as a way to objects. Here's an example of PeerReview ran against the connection above, and via direct activity lookup.
{
course(id: "00000000-5945-95c6-65fc-a9747b200320") {
flows {
activities {
__typename
... on ActivityInterface {
title
}
... on PeerReviewActivity {
reviews {
edges {
node {
reviewType
createdAt
}
}
}
}
}
}
}
}Notice the specialized fields only return for the activity type that are PeerReviews:
{
"data": {
"course": {
"flows": [
{
"activities": [
{
"__typename": "ContentActivity",
"title": "Welcome aboard!"
}
]
},
{
"activities": [
{
"__typename": "ContentActivity",
"title": "Our Mission"
},
{
"__typename": "SubmissionActivity",
"title": "Make an impact"
},
{
"__typename": "PeerReviewActivity",
"title": "Spot-check and team build",
"reviews": {
"edges": [
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.576582"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.617394"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.661450"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.703841"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:32.501897"
}
}
]
}
},
{
"__typename": "FeedbackReflectionActivity",
"title": "Introspect and reflect"
},
{
"__typename": "TeacherReviewActivity",
"title": "From your manager"
},
{
"__typename": "SelfReviewActivity",
"title": "How would you improve?"
},
{
"__typename": "ContentActivity",
"title": "Water cooler"
},
{
"__typename": "ContentActivity",
"title": "Networking: Meet across divisions"
}
]
},
{
"activities": [
{
"__typename": "ContentActivity",
"title": "Paper: Relevant today?"
},
{
"__typename": "SubmissionActivity",
"title": "How do you use paper?"
},
{
"__typename": "ContentActivity",
"title": "Our philosophy"
}
]
}
]
}
}
}title exists in PeerReviewActivity as well, no need to use ActivityInterface:
{
activity(id: "10aa7684-f0b2-4595-9161-4845e3602312") {
... on PeerReviewActivity {
title
reviews {
edges {
node {
reviewType
createdAt
}
}
}
}
}
}{
"data": {
"activity": {
"title": "Spot-check and team build",
"reviews": {
"edges": [
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.576582"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.617394"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.661450"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:30.703841"
}
},
{
"node": {
"reviewType": "PeerReview",
"createdAt": "2021-02-08T17:56:32.501897"
}
}
]
}
}
}
}on graphql.org
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