generator-martinlabs/generators/app/templates/Store.js

Generates a fullstack CRUD using Java and Vue.js, check the features list

class AdapStore {
  constructor(defaultColumn, callback) {
    this.orderBy = defaultColumn;
    this.callback = callback;
    this.asc = true;
    this.count = 0;
    this.currentPage = 0;
    this.pageCount = 0;
    this.pageSize = 20;
    this.query = '';

    this.searchByQuery = this.debounce(this.privateSearchByQuery, 500);
  }

  setOrder(column, asc) {
    if (asc != null) {
      this.asc = asc;
    } else if (this.orderBy === column) {
      this.asc = !this.asc;
    } else {
      this.asc = true;
    }

    this.orderBy = column;
    this.currentPage = 0;
    this.search();
  }

  setCount(count) {
    this.count = count;
    if (this.pageSize) {
      this.pageCount = Math.floor((this.count - 1) / this.pageSize);
      if (this.currentPage > this.pageCount && this.currentPage !== 0) {
        this.setCurrentPage(0);
      }
    }
  }

  setCurrentPage(page) {
    this.currentPage = page;
    this.search();
  }

  setPageSize(pageSize) {
    this.pageSize = pageSize;
    if (this.pageSize) {
      this.currentPage = 0;
      this.pageCount = Math.floor((this.count - 1) / this.pageSize);
      this.search();
    }
  }

  previousPage() {
    if (this.currentPage > 0) {
      this.currentPage -= 1;
      this.search();
    }
  }

  nextPage() {
    if (this.currentPage < this.pageCount) {
      this.currentPage += 1;
      this.search();
    }
  }

  privateSearchByQuery() {
    if (!this.query || !this.query.length || this.query.length > 2) {
      this.currentPage = 0;
      this.search();
    }
  }

  search() {
    if (this.callback && !this.callingBack) {
      this.callingBack = true;
      this.callback({
        query: this.query,
        page: this.currentPage,
        limit: this.pageSize,
        orderBy: this.orderBy,
        ascending: this.asc,
      });
      this.callingBack = false;
    }
  }

  debounce(func, wait, immediate) {
    let timeout;
    return (...args) => {
      const later = () => {
        timeout = null;
        if (!immediate) func.apply(this, args);
      };
      const callNow = immediate && !timeout;
      clearTimeout(timeout);
      timeout = setTimeout(later, wait);
      if (callNow) {
        func.apply(this, args);
      }
    };
  }
}

export { AdapStore as default };