Expand EasyCode front workbench features

This commit is contained in:
王鹏
2026-05-23 11:31:38 +08:00
parent 56dbc02526
commit 2c8b74ea8a
70 changed files with 6596 additions and 638 deletions

View File

@@ -8,6 +8,8 @@
<nav class="nav">
<router-link to="/">工作台</router-link>
<router-link to="/generate">生成项目</router-link>
<router-link to="/source-store">源码库</router-link>
<router-link to="/projects">我的项目</router-link>
</nav>
<div class="actions">

View File

@@ -323,7 +323,8 @@ function removeField(index) {
.delete-col {
display: flex;
align-items: end;
align-items: flex-start;
padding-top: 30px;
}
.field-head {
@@ -347,5 +348,9 @@ function removeField(index) {
border-right: 0;
border-bottom: 1px solid #e3e8f0;
}
.delete-col {
padding-top: 0;
}
}
</style>

View File

@@ -0,0 +1,514 @@
<template>
<div class="er-diagram">
<el-empty v-if="!graph.nodes.length" description="生成数据库后可查看 ER 图" />
<template v-else>
<div class="er-toolbar">
<div class="relation-builder">
<el-select v-model="relationForm.source" placeholder="来源表">
<el-option v-for="node in graph.nodes" :key="node.id" :label="node.title" :value="node.id" />
</el-select>
<el-select v-model="relationForm.sourceField" placeholder="来源字段">
<el-option v-for="field in sourceFields" :key="field.id" :label="field.name" :value="field.name" />
</el-select>
<span class="relation-arrow"></span>
<el-select v-model="relationForm.target" placeholder="目标表">
<el-option v-for="node in graph.nodes" :key="node.id" :label="node.title" :value="node.id" />
</el-select>
<el-select v-model="relationForm.targetField" placeholder="目标字段">
<el-option v-for="field in targetFields" :key="field.id" :label="field.name" :value="field.name" />
</el-select>
<el-button type="primary" :icon="Plus" @click="addRelation">添加关系</el-button>
</div>
<el-button :icon="Picture" @click="exportPng">导出图片</el-button>
</div>
<div class="er-scroll">
<svg ref="svgRef" class="er-canvas" :viewBox="`0 0 ${canvas.width} ${canvas.height}`" :style="canvasStyle">
<defs>
<marker
id="er-arrow"
markerWidth="10"
markerHeight="10"
refX="8"
refY="3"
orient="auto"
markerUnits="strokeWidth"
>
<path d="M0,0 L0,6 L8,3 z" fill="#8aa0bc" />
</marker>
</defs>
<g class="edge-layer">
<g v-for="edge in edgeViews" :key="edge.id">
<path class="relation-line" :class="{ manual: !edge.inferred }" :d="edge.path" marker-end="url(#er-arrow)" />
<text class="relation-label" :x="edge.labelX" :y="edge.labelY">{{ edge.fieldName }}</text>
<g class="edge-delete" :transform="`translate(${edge.labelX + 44}, ${edge.labelY - 13})`" @click="removeRelation(edge)">
<circle r="9" />
<path d="M-4,-4 L4,4 M4,-4 L-4,4" />
</g>
</g>
</g>
<g class="node-layer">
<foreignObject
v-for="node in graph.nodes"
:key="node.id"
:x="node.x"
:y="node.y"
:width="node.width"
:height="node.height"
>
<div xmlns="http://www.w3.org/1999/xhtml" class="entity-node" @pointerdown="startDrag($event, node)">
<div class="entity-head">
<strong>{{ node.title }}</strong>
<span v-if="node.comment">{{ node.comment }}</span>
</div>
<div class="field-list">
<div v-for="field in node.fields" :key="field.id" class="field-row">
<span v-if="field.primary" class="field-badge primary">PK</span>
<span v-else-if="field.required" class="field-badge required">*</span>
<span v-else class="field-badge muted">-</span>
<span class="field-name">{{ field.name }}</span>
<small v-if="field.comment">{{ field.comment }}</small>
</div>
<div v-if="!node.fields.length" class="field-empty">暂无字段</div>
</div>
</div>
</foreignObject>
</g>
</svg>
</div>
</template>
</div>
</template>
<script setup>
import { computed, reactive, ref, watch } from 'vue'
import { ElMessage } from 'element-plus'
import { Picture, Plus } from '@element-plus/icons-vue'
import { buildErExportSvg } from '@/utils/erExport'
import { buildErGraph } from '@/utils/erGraph'
import { saveBlob } from '@/utils/download'
const FIELD_HEIGHT = 28
const HEADER_HEIGHT = 60
const props = defineProps({
tables: {
type: Array,
default: () => []
},
draft: {
type: Object,
default: () => ({ positions: {}, relations: [], deletedEdgeIds: [] })
}
})
const emit = defineEmits(['update:draft'])
const svgRef = ref(null)
const relationForm = reactive({
source: '',
sourceField: '',
target: '',
targetField: ''
})
const dragging = ref(null)
const draftValue = computed(() => normalizeDraft(props.draft))
const graph = computed(() => buildErGraph(props.tables, draftValue.value))
const nodeMap = computed(() => {
const map = new Map()
graph.value.nodes.forEach((node) => map.set(node.id, node))
return map
})
const canvas = computed(() => {
const nodes = graph.value.nodes
const width = Math.max(900, ...nodes.map((node) => node.x + node.width + 48))
const height = Math.max(480, ...nodes.map((node) => node.y + node.height + 48))
return { width, height }
})
const canvasStyle = computed(() => ({
width: `${canvas.value.width}px`,
height: `${canvas.value.height}px`
}))
const sourceFields = computed(() => fieldsOf(relationForm.source))
const targetFields = computed(() => fieldsOf(relationForm.target))
watch(
() => graph.value.nodes.map((node) => node.id).join(','),
() => ensureRelationDefaults(),
{ immediate: true }
)
watch(
() => relationForm.source,
() => {
relationForm.sourceField = sourceFields.value[0]?.name || ''
}
)
watch(
() => relationForm.target,
() => {
relationForm.targetField = targetFields.value[0]?.name || ''
}
)
function normalizeDraft(value) {
const source = value && typeof value === 'object' ? value : {}
return {
positions: source.positions && typeof source.positions === 'object' ? source.positions : {},
relations: Array.isArray(source.relations) ? source.relations : [],
deletedEdgeIds: Array.isArray(source.deletedEdgeIds) ? source.deletedEdgeIds : []
}
}
function emitDraft(patch) {
emit('update:draft', {
...draftValue.value,
...patch
})
}
function fieldsOf(nodeId) {
return nodeMap.value.get(nodeId)?.fields || []
}
function ensureRelationDefaults() {
const nodes = graph.value.nodes
if (!relationForm.source && nodes[0]) {
relationForm.source = nodes[0].id
}
if (!relationForm.target && nodes[1]) {
relationForm.target = nodes[1].id
}
if (!relationForm.target && nodes[0]) {
relationForm.target = nodes[0].id
}
if (!relationForm.sourceField) {
relationForm.sourceField = sourceFields.value[0]?.name || ''
}
if (!relationForm.targetField) {
relationForm.targetField = targetFields.value[0]?.name || ''
}
}
function fieldY(node, fieldName) {
const index = Math.max(0, node.fields.findIndex((field) => field.name === fieldName))
return node.y + HEADER_HEIGHT + index * FIELD_HEIGHT + FIELD_HEIGHT / 2
}
function edgeAnchors(edge) {
const source = nodeMap.value.get(edge.source)
const target = nodeMap.value.get(edge.target)
if (!source || !target) return null
const sourceOnLeft = source.x <= target.x
const sourceX = sourceOnLeft ? source.x + source.width : source.x
const targetX = sourceOnLeft ? target.x : target.x + target.width
return {
sourceX,
sourceY: fieldY(source, edge.fieldName),
targetX,
targetY: fieldY(target, edge.targetFieldName),
curve: Math.max(56, Math.abs(targetX - sourceX) / 2)
}
}
function addRelation() {
if (!relationForm.source || !relationForm.target || !relationForm.sourceField || !relationForm.targetField) {
ElMessage.warning('请选择关系两端的表和字段')
return
}
if (relationForm.source === relationForm.target) {
ElMessage.warning('关系两端不能是同一张表')
return
}
const relation = {
id: `manual_${Date.now()}_${Math.random().toString(16).slice(2)}`,
source: relationForm.source,
target: relationForm.target,
fieldName: relationForm.sourceField,
targetFieldName: relationForm.targetField
}
emitDraft({ relations: [...draftValue.value.relations, relation] })
}
function removeRelation(edge) {
if (edge.inferred) {
emitDraft({ deletedEdgeIds: Array.from(new Set([...draftValue.value.deletedEdgeIds, edge.id])) })
return
}
emitDraft({ relations: draftValue.value.relations.filter((relation) => relation.id !== edge.id) })
}
function startDrag(event, node) {
dragging.value = {
id: node.id,
startX: event.clientX,
startY: event.clientY,
x: node.x,
y: node.y
}
event.currentTarget.setPointerCapture?.(event.pointerId)
window.addEventListener('pointermove', handleDrag)
window.addEventListener('pointerup', stopDrag, { once: true })
}
function handleDrag(event) {
if (!dragging.value) return
const nextX = Math.max(0, Math.round(dragging.value.x + event.clientX - dragging.value.startX))
const nextY = Math.max(0, Math.round(dragging.value.y + event.clientY - dragging.value.startY))
emitDraft({
positions: {
...draftValue.value.positions,
[dragging.value.id]: { x: nextX, y: nextY }
}
})
}
function stopDrag() {
dragging.value = null
window.removeEventListener('pointermove', handleDrag)
}
async function exportPng() {
const svgText = buildErExportSvg({
width: canvas.value.width,
height: canvas.value.height,
nodes: graph.value.nodes,
edges: edgeViews.value
})
const svgBlob = new Blob([svgText], { type: 'image/svg+xml;charset=utf-8' })
const url = URL.createObjectURL(svgBlob)
const image = new Image()
image.decoding = 'async'
try {
await new Promise((resolve, reject) => {
image.onload = resolve
image.onerror = reject
image.src = url
})
const canvasElement = document.createElement('canvas')
canvasElement.width = canvas.value.width
canvasElement.height = canvas.value.height
const context = canvasElement.getContext('2d')
context.fillStyle = '#f8fafc'
context.fillRect(0, 0, canvasElement.width, canvasElement.height)
context.drawImage(image, 0, 0)
const blob = await new Promise((resolve) => canvasElement.toBlob(resolve, 'image/png'))
if (blob) {
saveBlob(blob, 'er-diagram.png')
}
} finally {
URL.revokeObjectURL(url)
}
}
const edgeViews = computed(() => graph.value.edges
.map((edge) => {
const anchors = edgeAnchors(edge)
if (!anchors) return null
const direction = anchors.sourceX <= anchors.targetX ? 1 : -1
const c1x = anchors.sourceX + anchors.curve * direction
const c2x = anchors.targetX - anchors.curve * direction
return {
...edge,
path: `M ${anchors.sourceX} ${anchors.sourceY} C ${c1x} ${anchors.sourceY}, ${c2x} ${anchors.targetY}, ${anchors.targetX} ${anchors.targetY}`,
labelX: (anchors.sourceX + anchors.targetX) / 2,
labelY: (anchors.sourceY + anchors.targetY) / 2 - 8
}
})
.filter(Boolean))
</script>
<style scoped lang="scss">
.er-diagram {
min-height: 430px;
background: #f8fafc;
}
.er-toolbar {
display: flex;
align-items: center;
justify-content: space-between;
gap: 16px;
padding: 14px 18px;
border-bottom: 1px solid #e3e8f0;
background: #ffffff;
}
.relation-builder {
display: grid;
grid-template-columns: minmax(120px, 170px) minmax(120px, 170px) auto minmax(120px, 170px) minmax(120px, 170px) auto;
align-items: center;
gap: 10px;
}
.relation-arrow {
color: #64748b;
font-weight: 700;
}
.er-scroll {
overflow: auto;
min-height: 430px;
padding: 24px;
}
.er-canvas {
display: block;
}
.relation-line {
fill: none;
stroke: #8aa0bc;
stroke-width: 1.6;
stroke-dasharray: 6 5;
}
.relation-line.manual {
stroke: #2563eb;
stroke-dasharray: none;
}
.edge-delete {
cursor: pointer;
circle {
fill: #ffffff;
stroke: #e2e8f0;
}
path {
stroke: #ef4444;
stroke-width: 1.8;
stroke-linecap: round;
}
}
.relation-label {
fill: #64748b;
font-size: 12px;
paint-order: stroke;
stroke: #f8fafc;
stroke-width: 4px;
text-anchor: middle;
}
.entity-node {
overflow: hidden;
height: 100%;
border: 1px solid #d6e0ee;
border-radius: 8px;
background: #ffffff;
box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
cursor: move;
user-select: none;
}
.entity-head {
display: grid;
gap: 4px;
padding: 12px 14px;
border-bottom: 1px solid #e7edf5;
background: #eef5ff;
strong {
overflow: hidden;
color: #0f172a;
font-size: 15px;
text-overflow: ellipsis;
white-space: nowrap;
}
span {
overflow: hidden;
color: #64748b;
font-size: 12px;
text-overflow: ellipsis;
white-space: nowrap;
}
}
.field-list {
padding: 8px 10px 10px;
}
.field-row {
display: grid;
grid-template-columns: 34px minmax(0, 1fr) minmax(0, 0.9fr);
align-items: center;
gap: 6px;
min-height: 28px;
color: #334155;
font-size: 13px;
small {
overflow: hidden;
color: #94a3b8;
text-overflow: ellipsis;
white-space: nowrap;
}
}
.field-badge {
display: inline-grid;
min-width: 26px;
height: 18px;
place-items: center;
border-radius: 4px;
font-size: 11px;
font-weight: 700;
}
.field-badge.primary {
color: #1d4ed8;
background: #dbeafe;
}
.field-badge.required {
color: #b45309;
background: #fef3c7;
}
.field-badge.muted {
color: #cbd5e1;
}
.field-name {
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.field-empty {
padding: 18px 0;
color: #94a3b8;
text-align: center;
}
@media (max-width: 1080px) {
.er-toolbar {
align-items: flex-start;
flex-direction: column;
}
.relation-builder {
grid-template-columns: minmax(140px, 1fr) minmax(140px, 1fr);
width: 100%;
}
.relation-arrow {
display: none;
}
}
</style>