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added node expansion feature #8

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Merged
dpgiakatos merged 1 commit into from
Aug 4, 2025
Merged

added node expansion feature #8

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7 changes: 6 additions & 1 deletion src/components/OutputPanel.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -107,6 +107,11 @@ const handleEditorHeightChange = (newHeight) => {
outputPanel.value.style.height = `${height + diff}px`;
};

const handleNodeExpanded = ({ newNodes, newRels }) => {
nodes.value.push(...newNodes);
relationships.value.push(...newRels);
};

onMounted(() => {
run(props.query, props.queryTypeInput);
if (!props.disableResizer) {
Expand Down Expand Up @@ -184,7 +189,7 @@ onMounted(() => {
v-if="nodes.length"
class="output-tab-panel"
>
<GraphOutput :nodes="nodes" :relationships="relationships" />
<GraphOutput :nodes="nodes" :relationships="relationships" @nodeExpanded="handleNodeExpanded"/>
</q-tab-panel>
<q-tab-panel
name="table"
Expand Down
41 changes: 35 additions & 6 deletions src/components/output/GraphOutput.vue
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
<script setup>
import { ref, onMounted, onUnmounted, watch } from "vue";
import { ref, onMounted, onUnmounted, watch, inject } from "vue";
import { NVL } from "@neo4j-nvl/base";
import {
ZoomInteraction,
Expand All @@ -9,6 +9,8 @@ import {
ClickInteraction,
} from "@neo4j-nvl/interaction-handlers";

const Neo4jApi = inject("Neo4jApi");
const emit = defineEmits(['nodeExpanded']);
const props = defineProps(["nodes", "relationships"]);

const graph = ref();
Expand Down Expand Up @@ -62,9 +64,36 @@ const reset = () => {
nvl.resetZoom();
};

const nodeExpansion = () => {
console.log("Expand:", nodeRightClickMenu.value.node);
};
const fetchConnectedNodes = async (nodeId) => {
const cypher = `
MATCH (n)
WHERE elementId(n) = "${nodeId}"
MATCH (n)-[r]->(m)
WITH type(r) AS relType, r, m
WITH relType, collect({r: r, m: m}) AS connections
UNWIND connections[..1] AS conn
RETURN conn.r AS rel, conn.m AS target
`
const res = await Neo4jApi.run(cypher);
return {
nodes: res.graph?.nodes || [],
relationships: res.graph?.relationships || []
}
}

const nodeExpansion = async (nodeId) => {
const { nodes: newNodes, relationships: newRels, rows: newRows, columns: newCols } = await fetchConnectedNodes(nodeId);
if(newNodes.length){
nvl.addAndUpdateElementsInGraph([...newNodes], [...newRels]);
emit('nodeExpanded', {
newNodes,
newRels
});
}
else{
console.log("node is not expandable");
}
}

const updateNvlElementselectedElement = (element) => {
if (!element && selectedElement.value.clicked) {
Expand Down Expand Up @@ -218,9 +247,9 @@ onUnmounted(() => {
<template>
<div class="graph">
<div ref="graph">
<q-menu :target="nodeRightClickMenu.clicked" context-menu>
<q-menu v-model="nodeRightClickMenu.clicked" context-menu>
<q-list dense>
<q-item clickable v-close-popup @click="nodeExpansion">
<q-item clickable v-close-popup @click="() => nodeExpansion(nodeRightClickMenu.node?.id)">
<q-item-section>Expand</q-item-section>
</q-item>
</q-list>
Expand Down