Package com.tubeilike.model

Source Code of com.tubeilike.model.CategoryModel

package com.tubeilike.model;

import java.util.ArrayList;
import java.util.List;
import javax.jdo.PersistenceManager;
import javax.jdo.Query;
import com.tubeilike.entity.Category;

public class CategoryModel {

  static PersistenceManager pm = PMF.get().getPersistenceManager();

  public static void initPm() {
    if (pm.isClosed()) {
      pm = PMF.get().getPersistenceManager();
    }
  }

  @SuppressWarnings("unchecked")
  public static List<Category> all() {
    initPm();
    List<Category> result = new ArrayList<Category>();
    Query query = pm.newQuery(Category.class);
    query.setFilter("status==1");
    query.setRange(0, 10);
    result = (List<Category>) query.execute();
    return result;
  }

  public static boolean add(Category cate) {
    initPm();
    try {
      pm.makePersistent(cate);
    } catch (Exception e) {
      e.printStackTrace();
      return false;
    }
    return true;
  }

  public static boolean addAll(List<Category> listCate) {
    initPm();
    try {
      pm.makePersistentAll(listCate);
    } catch (Exception e) {
      e.printStackTrace();
      return false;
    }
    return true;
  }

  public static boolean update(Category cate) {
    initPm();
    pm.makePersistent(cate);
    return true;
  }

  @SuppressWarnings("unchecked")
  public static Category getByCateAlias(String alias) {
    initPm();
    Category cate = null;
    Query query = pm.newQuery(Category.class);
    query.setFilter("alias=='" + alias + "' && status==1");
    query.setRange(0, 1);
    List<Category> listResult = (List<Category>) query.execute(alias);
    if (listResult.size() > 0) {
      cate = listResult.get(0);
    }
    return cate;
  }

  public static void closePM() {
    pm.close();
  }

}
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