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Show error if no entity specified for history card (#7752)

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Philip Allgaier 2020-11-21 13:50:56 +01:00 committed by GitHub
parent fd5b125c2d
commit aad6492a6a
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1 changed files with 2 additions and 2 deletions
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src/panels/lovelace/cards/hui-history-graph-card.ts
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@ -73,8 +73,8 @@ export class HuiHistoryGraphCard extends LitElement implements LovelaceCard {
} }
public setConfig(config: HistoryGraphCardConfig): void { public setConfig(config: HistoryGraphCardConfig): void {
if (!config.entities) { if (!config.entities.length) {
throw new Error("Entities must be defined"); throw new Error("Entities must be specified");
} }
if (config.entities && !Array.isArray(config.entities)) { if (config.entities && !Array.isArray(config.entities)) {