Examples with QueryCondition com.chao.cloud.common.extra.mybatis.annotation.QueryCondition used on opensource projects

Example 1 with QueryCondition

use of com.chao.cloud.common.extra.mybatis.annotation.QueryCondition in project chao-cloud by chaojunzi.

the class MybatisUtil method parseQueryCondition.

/**
 * 解析 {@link QueryCondition}
 *
 * @param <T>       数据实体
 * @param param     参数
 * @param beanClass 实体类型
 * @param wrapper   条件构造器
 * @return {@link AbstractWrapper}
 */
static <T> AbstractWrapper<T, ?, ?> parseQueryCondition(Object param, Class<T> beanClass, AbstractWrapper<T, ?, ?> wrapper) {
    if (param == null) {
        return wrapper;
    }
    Field[] fields = ReflectUtil.getFields(param.getClass());
    if (ArrayUtil.isEmpty(fields)) {
        return wrapper;
    }
    // 获取字段名
    TableInfo info = TableInfoHelper.getTableInfo(beanClass);
    Assert.notNull(info, "无效的数据实体 beanClass={}", beanClass.getName());
    Map<String, String> propColumnMap = info.getFieldList().stream().collect(Collectors.toMap(TableFieldInfo::getProperty, TableFieldInfo::getColumn));
    for (Field field : fields) {
        // 判断model中是否存在 @QueryCondition 注解
        QueryCondition q = field.getAnnotation(QueryCondition.class);
        if (q == null) {
            continue;
        }
        SqlTemplate template = q.value();
        // 实体字段名字
        Class<? extends FuncExps> funcClass = q.funcClass();
        String fieldName = field.getName();
        SFunction<?, ?> func = null;
        if (funcClass != FuncExps.class) {
            // 调用sfunction
            func = getSFunction(funcClass);
            String name = FunctionUtil.getFieldName(func);
            if (StrUtil.isNotBlank(name)) {
                fieldName = name;
            }
        }
        // 
        String column = propColumnMap.get(fieldName);
        // 
        boolean sqlSegment = template == SqlTemplate.SEGMENT;
        boolean isSql = template == SqlTemplate.APPLY_SQL;
        if (!sqlSegment && !isSql) {
            Assert.notBlank(column, "数据库字段不匹配;paramName={}", field.getName());
        }
        // 获取属性值
        Object v = ReflectUtil.getFieldValue(param, field);
        if (v == null) {
            continue;
        }
        // 处理自定义sql
        if (isSql) {
            parseApplySql(wrapper, v);
            continue;
        }
        // 排序单独处理
        if (template == SqlTemplate.ORDER_BY && func != null) {
            Assert.state(v instanceof Boolean, "排序请使用 Boolean 类型（B大写）");
            // 反射方法
            Method method = ReflectUtil.getMethodByName(wrapper.getClass(), template.getTemplate());
            ReflectUtil.invoke(wrapper, method, true, v, func);
            continue;
        }
        // 处理in查询-占位符
        if (template == SqlTemplate.IN) {
            Assert.state(v instanceof Collection, "in 查询 请传入 集合");
            // 反射方法
            Method method = ReflectUtil.getMethodByName(wrapper.getClass(), template.getTemplate());
            ReflectUtil.invoke(wrapper, method, true, func, v);
            continue;
        }
        // 
        if (sqlSegment) {
            // 必须是String类型
            if (v instanceof List) {
                List<String> strList = (List<String>) v;
                strList.forEach(wrapper::apply);
            }
            if (v instanceof String) {
                wrapper.apply(v.toString());
            }
        } else {
            wrapper.apply(template.getApplySql(column), template.formatValue(v));
        }
    }
    return wrapper;
}