Add query executed event; forward model events to global event bus

src/orm/connection/event/QueryExecutedEvent.ts

@@ -0,0 +1,67 @@
+import {Event} from '../../../event/Event'
+import {Inject, Injectable} from '../../../di'
+import {InvalidJSONStateError, JSONState} from '../../../util'
+import {Connection} from '../Connection'
+import {DatabaseService} from '../../DatabaseService'
+
+/**
+ * Event fired when a query is executed.
+ */
+@Injectable()
+export class QueryExecutedEvent extends Event {
+    @Inject()
+    protected database!: DatabaseService
+
+    /**
+     * The name of the connection where the query was executed.
+     * @protected
+     */
+    public connectionName!: string
+
+    /**
+     * The connection where the query was executed.
+     */
+    public connection!: Connection
+
+    /**
+     * The query that was executed.
+     */
+    public query!: string
+
+    constructor(
+        connectionName?: string,
+        connection?: Connection,
+        query?: string,
+    ) {
+        super()
+        if ( connectionName ) {
+            this.connectionName = connectionName
+        }
+
+        if ( connection ) {
+            this.connection = connection
+        }
+
+        if ( query ) {
+            this.query = query
+        }
+    }
+
+    async dehydrate(): Promise<JSONState> {
+        return {
+            connectionName: this.connectionName,
+            query: this.query,
+        }
+    }
+
+    rehydrate(state: JSONState): void {
+        if ( !state.connectionName || !state.query ) {
+            throw new InvalidJSONStateError('Missing connectionName or query from QueryExecutedEvent state.')
+        }
+
+        this.query = String(state.query)
+        this.connectionName = String(state.connectionName)
+        this.connection = this.database.get(this.connectionName)
+    }
+
+}