202 lines
3.7 KiB
Markdown
202 lines
3.7 KiB
Markdown
# Charts
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Currently, chart blocks in NocoBase need to be implemented via a configuration file or by writing code. The chart library uses [g2plot](https://g2plot.antv.vision/en/examples), which theoretically supports all charts on [https://g2plot.antv.vision/en/examples](https://g2plot.antv.vision/en/examples). The currently configurable charts include
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- Column charts
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- Bar charts
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- Line charts
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- Pie charts
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- Area charts
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## Add and edit charts
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## Chart Configuration
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The initial chart configuration is static JSON data
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```json
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{
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"data": [
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{
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"type": "furniture & appliances",
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"sales": 38
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},
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{
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"type": "食品油副食",
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"sales": 52
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},
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{
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"type": "Fresh Fruit",
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"sales": 61
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},
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{
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"type": "美容洗护",
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"sales": 145
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},
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{
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"type": "Maternity & Baby Products",
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"sales": 48
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},
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{
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"type": "Imported Food",
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"sales": 38
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},
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{
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"type": "Food & Beverage",
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"sales": 38
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},
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{
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"type": "Home Cleaning",
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"sales": 38
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}
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],
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"xField": "type",
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"yField": "sales",
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"label": {
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"position": "middle",
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"style": {
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"fill": "#FFFFFF",
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"opacity": 0.6
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}
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},
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"xAxis": {
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"label": {
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"autoHide": true,
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"autoRotate": false
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}
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},
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"meta": {
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"type": {
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"alias": "category"
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},
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"sales": {
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"alias": "sales"
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}
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}
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}
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```
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Data supports expression, NocoBase has a built-in `requestChartData(config)` function for custom chart data requests. Parameters are described in: [https://github.com/axios/axios#request-config](https://github.com/axios/axios#request-config)
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Example.
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```json
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{
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"data": "{{requestChartData({ url: 'collectionName:getColumnChartData' })}}",
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"xField": "type",
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"yField": "sales",
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"label": {
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"position": "middle",
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"style": {
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"fill": "#FFFFFF",
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"opacity": 0.6
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}
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},
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"xAxis": {
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"label": {
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"autoHide": true,
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"autoRotate": false
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}
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},
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"meta": {
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"type": {
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"alias": "category"
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},
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"sales": {
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"alias": "sales"
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}
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}
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}
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```
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HTTP API example.
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```bash
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GET /api/collectionName:getColumnChartData
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Response Body
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{
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"data": [
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{
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"type": "furniture & appliances",
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"sales": 38
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},
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{
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"type": "食品油副食",
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"sales": 52
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},
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{
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"type": "Fresh Fruit",
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"sales": 61
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},
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{
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"type": "美容洗护",
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"sales": 145
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},
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{
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"type": "Maternity & Baby Products",
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"sales": 48
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},
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{
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"type": "Imported Food",
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"sales": 38
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},
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{
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"type": "Food & Beverage",
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"sales": 38
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},
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{
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"type": "Home Cleaning",
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"sales": 38
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}
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]
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}
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```
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## Server-side implementation
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Add a custom getColumnChartData method to the data table named collectionName.
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```js
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app.resourcer.registerActionHandlers({
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'collectionName:getColumnChartData': (ctx, next) => {
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// The data to be output
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ctx.body = [];
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await next();
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},
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});
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```
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## Video
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### Static data
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https://user-images.githubusercontent.com/1267426/198877269-1c56562b-167a-4808-ada3-578f0872bce1.mp4
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### Dynamic data
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https://user-images.githubusercontent.com/1267426/198877336-6bd85f0b-17c5-40a5-9442-8045717cc7b0.mp4
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### More charts
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Theoretically supports all charts on [https://g2plot.antv.vision/en/examples](https://g2plot.antv.vision/en/examples)
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https://user-images.githubusercontent.com/1267426/198877347-7fc2544c-b938-4e34-8a83-721b3f62525e.mp4
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## JS Expressions
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Syntax
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```js
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{
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"key1": "{{ js expression }}"
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}
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```
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https://user-images.githubusercontent.com/1267426/198877361-808a51cc-6c91-429f-8cfc-8ad7f747645a.mp4
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