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91 lines
3.2 KiB
91 lines
3.2 KiB
from datetime import datetime, date
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def db_page(entity_filter, order, data, number):
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"""分页帮助方法.
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对db.session出来的实体进行分页
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Args:
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entity_filter: an entity that need pagination.
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order: Sort by.
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data: get pageNumber.
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number: Number of lists per page
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Returns:
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可供json转换的dict
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Raises:
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TYPEError: 类型转换出错
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"""
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entityPaginate = entity_filter.order_by(order.desc()).paginate(
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int(data.get('pageNumber')), number,
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error_out=False)
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resultList = []
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for (i, result) in enumerate(entityPaginate.items):
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result_modified = dict(zip(result.keys(), result))
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for (j, child) in enumerate(result):
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if type(child) == date or type(child) == datetime:
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result_modified.__setitem__(result.keys()[j], str(child))
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resultList.append(result_modified)
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return resultList
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def db_page_entity(entity, data, number):
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"""分页帮助方法.
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对实体查询出来的实体集合进行分页
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Args:
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entity: an entity that need pagination.
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data: get pageNumber.
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number: Number of lists per page
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Returns:
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可供json转换的dict
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Raises:
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TYPEError: 类型转换出错
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"""
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data_list = entity.paginate(int(data.get('pageNumber')), number, error_out=False)
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result_list = [dict(zip([attr for attr in dir(result) if '_' not in attr and
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attr is not 'query' and
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attr is not 'metadata'],
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[str(getattr(result, attr)) if
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type(getattr(result, attr)) == date or
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type(getattr(result, attr)) == datetime else
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getattr(result, attr) for attr in dir(result) if '_' not in attr and
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attr is not 'query' and
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attr is not 'metadata']))
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for result in data_list.items]
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return result_list
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def entityDictToStringDict(resultList):
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"""
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没啥用的函数，以前用来转换json数据为string模式的，更新了之后可以支持所有类型的数据 以前是因为json.dumps()不支持decimal类型的数据
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用List2Json中的方法转换为float就解决了
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"""
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jsonList = []
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for dic in resultList:
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dicItem = {}
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for key, value in dic.items():
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if value is None:
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value = ''
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dicItem[key] = str(value)
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jsonList.append(dicItem)
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return jsonList
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def singleEntityToJson(singleEntity):
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"""
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单条数据转json，不需要分页的
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"""
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dictList = [dict(zip([attr for attr in dir(singleEntity) if '_' not in attr and
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attr is not 'query' and
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attr is not 'metadata'],
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[getattr(singleEntity, attr) for attr in dir(singleEntity)
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if '_' not in attr and
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attr is not 'query' and
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attr is not 'metadata']))]
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return dictList[0]
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