mirror of https://github.com/nocodb/nocodb
Muhammed Mustafa
2 years ago
2 changed files with 142 additions and 155 deletions
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<script setup lang="ts"> |
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import type { Edge, Node } from '@braks/vue-flow' |
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import { Background, Controls, VueFlow } from '@braks/vue-flow' |
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import { UITypes } from 'nocodb-sdk' |
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import dagre from 'dagre' |
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import TableNode from './TableNode.vue' |
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import RelationEdge from './RelationEdge.vue' |
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interface Props { |
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tables: any[] |
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config: { |
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showPkAndFk: boolean |
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showViews: boolean |
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} |
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} |
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const { tables, config } = defineProps<Props>() |
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const { metasWithId } = useMetas() |
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const initialNodes = ref<Pick<Node, 'id' | 'data' | 'type'>[]>([]) |
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const nodes = ref<Node[]>([]) |
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const edges = ref<Edge[]>([]) |
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const dagreGraph = new dagre.graphlib.Graph() |
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dagreGraph.setDefaultEdgeLabel(() => ({})) |
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const populateInitalNodes = () => { |
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tables.forEach((table) => { |
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if (!table.id) return |
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dagreGraph.setNode(table.id, { width: 250, height: 50 * metasWithId.value[table.id].columns.length }) |
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initialNodes.value.push({ |
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id: table.id, |
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data: { ...metasWithId.value[table.id], showPkAndFk: config.showPkAndFk }, |
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type: 'custom', |
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}) |
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}) |
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dagreGraph.setGraph({ rankdir: 'LR' }) |
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} |
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const populateEdges = () => { |
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const ltarColumns = tables.reduce((acc: any[], table) => { |
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const meta = metasWithId.value[table.id!] |
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const ltarColumns = meta.columns.filter((column: any) => column.uidt === UITypes.LinkToAnotherRecord && column.system !== 1) |
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ltarColumns.forEach((column: any) => { |
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if (column.colOptions.type === 'hm') { |
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acc.push(column) |
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} |
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if (column.colOptions.type === 'mm') { |
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// Avoid duplicate mm connections |
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const correspondingColumn = acc.find( |
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(c) => |
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c.colOptions.type === 'mm' && |
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c.colOptions.fk_parent_column_id === column.colOptions.fk_child_column_id && |
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c.colOptions.fk_child_column_id === column.colOptions.fk_parent_column_id, |
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) |
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if (!correspondingColumn) { |
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acc.push(column) |
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} |
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} |
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}) |
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return acc |
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}, []) |
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edges.value = ltarColumns.map((column: any) => { |
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const source = column.fk_model_id |
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const target = column.colOptions.fk_related_model_id |
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let sourceColumnId, targetColumnId |
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if (column.colOptions.type === 'hm') { |
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sourceColumnId = column.colOptions.fk_child_column_id |
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targetColumnId = column.colOptions.fk_child_column_id |
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} |
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if (column.colOptions.type === 'mm') { |
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sourceColumnId = column.colOptions.fk_parent_column_id |
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targetColumnId = column.colOptions.fk_child_column_id |
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} |
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dagreGraph.setEdge(source, target) |
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return { |
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id: `e-${sourceColumnId}-${source}-${targetColumnId}-${target}`, |
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source: `${source}`, |
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target: `${target}`, |
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sourceHandle: `s-${sourceColumnId}-${source}`, |
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targetHandle: `d-${targetColumnId}-${target}`, |
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type: 'custom', |
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data: { |
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column, |
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}, |
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} |
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}) |
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} |
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const layoutNodes = () => { |
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dagre.layout(dagreGraph) |
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nodes.value = initialNodes.value.flatMap((node) => { |
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const nodeWithPosition = dagreGraph.node(node.id) |
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if (!nodeWithPosition) return [] |
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return [{ ...node, position: { x: nodeWithPosition.x, y: nodeWithPosition.y } } as Node] |
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}) |
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} |
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onBeforeMount(async () => { |
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populateInitalNodes() |
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populateEdges() |
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layoutNodes() |
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}) |
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</script> |
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<template> |
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<VueFlow :nodes="nodes" :edges="edges" :fit-view-on-init="true" :elevate-edges-on-select="true"> |
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<Controls :show-fit-view="false" :show-interactive="false" /> |
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<template #node-custom="props"> |
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<TableNode :data="props.data" /> |
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</template> |
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<template #edge-custom="props"> |
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<RelationEdge v-bind="props" /> |
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</template> |
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<Background /> |
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</VueFlow> |
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</template> |
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