Thingsboard仪表板自定义操作NullInjectorError
Thingsboard仪表板自定义操作NullInjectorError
提问于 2020-06-12 17:31:02
我尝试为“点击行时”配置自定义操作，但是火狐和Chromium都失败了，返回NullInjectorError。我不知道如何找到根本问题并解决它。
即使我重复"ThingsBoard仪表板开发指南。第2部分“视频教程代码示例(视频上的代码：https://youtu.be/mqWEGs1Z2BQ?t=589)，它也会失败，并返回相同的错误。
我的代码：
var $injector = widgetContext.$scope.$injector;
$injector.get('deviceService').getDevice(entityId.id).then(function(device){
if(device.type == 'energy sensor'){
openDashboardState('energy_state');
} else if(device.type == 'water sensor'){
openDashboardState('water_state');
} else if(device.type == 'temperature sensor'){
openDashboardState('temperature_state');
} else {
// fallback here if I mistaken with device.types
openDashboardState('temperature_state');
}
});
function openDashboardState(stateId){
var params = {
entityId: entityId,
entityName: entityName
};
widgetContext.stateController.openState(stateId, params, false);
}我在Chromiun上的错误：
NullInjectorError: R3InjectorError(e)[deviceService -> deviceService -> deviceService -> deviceService]:
NullInjectorError: No provider for deviceService!
at e.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:692603)
at e.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:764401)
at e.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:764401)
at e.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:764401)
at e.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:764401)
at t.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:862099)
at Object.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:846305)
at Qn (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:706656)
at e.get (http://my-server-addr:8880/polyfills.e5ed3e112692f855567f.js:1:708213)
at eval (eval at e.handleWidgetAction (http://my-server-addr:8880/1.22c948d0d38c2bc05630.js:1:584011), <anonymous>:5:11)
e.handleWidgetAction @ 1.22c948d0d38c2bc05630.js:1
e.onRowClick @ 1.22c948d0d38c2bc05630.js:1
e_mat_row_25_Template_mat_row_click_0_listener @ template.html:87
gl @ polyfills.e5ed3e112692f855567f.js:1
i @ polyfills.e5ed3e112692f855567f.js:1
(anonymous) @ polyfills.e5ed3e112692f855567f.js:1
e.invokeTask @ polyfills.e5ed3e112692f855567f.js:1
onInvokeTask @ polyfills.e5ed3e112692f855567f.js:1
e.invokeTask @ polyfills.e5ed3e112692f855567f.js:1
t.runTask @ polyfills.e5ed3e112692f855567f.js:1
t.invokeTask @ polyfills.e5ed3e112692f855567f.js:1
h @ polyfills.e5ed3e112692f855567f.js:1
f @ polyfills.e5ed3e112692f855567f.js:1回答 1
Stack Overflow用户
回答已采纳
发布于 2020-06-29 11:47:51
我检查了同样的问题。我找到了一个解决方案。
var $injector = widgetContext.$scope.$injector;
$injector.get(widgetContext.servicesMap.get('deviceService')).getDevice(entityId.id).subscribe(function(device) {
if (device.type == 'energy sensor') {
openDashboardState('energy_state')
}
else if(device.type == 'water sensor') {
openDashboardState('water_state')
}
else {
openDashboardState('temperature_state')
}
});
function openDashboardState(stateId) {
var params = {
entityId: entityId,
entityName: entityName
}
widgetContext.stateController.openState(stateId, params,
false);
}我希望这对你有帮助。祝你好运！:)
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/62341426
复制相关文章
相似问题
腾讯云开发者
