package com.lutao.cloud.common.data.datascope;

import com.baomidou.mybatisplus.core.enums.SqlMethod;
import com.baomidou.mybatisplus.core.injector.AbstractMethod;
import com.baomidou.mybatisplus.core.metadata.TableInfo;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlSource;

/**
 * 扩展支持COUNT查询数量
 *

 * @date 2020/6/17
 */
public class SelectCountByScope extends AbstractMethod{

	@Override
	public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo){
		SqlMethod sqlMethod = SqlMethod.SELECT_LIST;

		String sql = String.format(sqlMethod.getSql(), this.sqlFirst(), this.sqlSelectColumns(tableInfo, true),
				tableInfo.getTableName(), this.sqlWhereEntityWrapper(true, tableInfo), this.sqlOrderBy(tableInfo),
				this.sqlComment());
		SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);

		return this.addSelectMappedStatementForOther(mapperClass, "selectCountByScope", sqlSource, Integer.class);
	}

}
