pipeline_2.js

    activate() {
        this.pipeline = {
            A_requestModel: () => {
                this.params.loading = true;
                return this.get(newRequest(this.params));
            },
            B_requestDataOnce: () => {
                const state = this.store.getState();
                this.constants = state.constants;
                this.currentUser = state.currentUser;
                return Promise.resolve();
            },
            C_dumpFromStore: () => {
                const state = this.store.getState();
                this.model = state.allApprovals;
                this.model.data = this.model.data.map(a => this.convertStatus(a));
                return Promise.resolve();
            },
            D_end: () => {
                this.loadsetLastSelectRow(this.model.data, this.lastSelectRow);
                this.params.loading = false;
            },
        };
    }

    fetchData() {
        this.startPipeline(this.pipeline);
    }