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package com.minlia.module.data.batis.query;

import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.toolkit.SqlUtils;
import com.baomidou.mybatisplus.toolkit.StringUtils;
import java.util.HashMap;
import java.util.Map;

/**
 * 自定义查询构造器
 */
public class AbstractQuery extends EntityWrapper {

  /**
   * 外键表别名对象
   */
  protected Map aliasMap = new HashMap<>();

  @Override
  public String getSqlSelect() {
    return StringUtils.isEmpty(this.sqlSelect) ? "*" : SqlUtils.stripSqlInjection(this.sqlSelect);
  }

  public Map getAliasMap() {
    return aliasMap;
  }

  /**
   * 创建外键表关联对象,需要在mapper(xml)中编写join
   */
  public void createAlias(String entiry, String alias) {
    this.aliasMap.put(entiry, alias);
  }
}