data: contribution: context

1 files changed, 29 insertions, 0 deletions

diff --git a/src/data/composite/things/contribution/withContributionContext.js b/src/data/composite/things/contribution/withContributionContext.js
new file mode 100644
index 00000000..83ad5b73
--- /dev/null
+++ b/src/data/composite/things/contribution/withContributionContext.js
@@ -0,0 +1,29 @@
+import {input, templateCompositeFrom} from '#composite';
+
+import {withPropertiesFromObject} from '#composite/data';
+
+export default templateCompositeFrom({
+  annotation: `withContributionContext`,
+
+  outputs: [
+    '#contributionTarget',
+    '#contributionProperty',
+  ],
+
+  steps: () => [
+    {
+      dependencies: ['thing', 'thingProperty'],
+
+      compute: (continuation, {
+        ['thing']: thing,
+        ['thingProperty']: thingProperty,
+      }) => continuation({
+        ['#contributionTarget']:
+          thing.constructor[Symbol.for('Thing.referenceType')],
+
+        ['#contributionProperty']:
+          thingProperty,
+      }),
+    },
+  ],
+});