sqlalchemy 处理 JSON 数据（添加、查找，聚合）

sqlalchemy_json.py

# 模型
from app import db
from sqlalchemy.dialects.postgresql import UUID, JSON
from sqlalchemy import text as sa_text


class User(db.Model):
    id = db.Column(UUID(as_uuid=True), primary_key=True, default=sa_text("uuid_generate_v4()"))
    username = db.Column(db.CHAR(16), unique=True, nullable=False)
    profile = db.Column(JSON)

    def __repr__(self):
        return '<User %r>' % self.username

# 添加
@admin.route('/user/add')
def user_add():
    from random import randint
    # from uuid import uuid4
    user = User(username='yesen' + str(randint(1, 9999)))
    # profile = dict(age=randint(1, 99), face=str(uuid4()) + '.jpg', gender=randint(0, 1))
    profile = dict(age=randint(1, 99), city='longnan', gender=randint(0, 1), rmb=randint(0, 999))
    user.profile = profile
    db.session.add(user)
    db.session.commit()
    return 'user added success: id:{}, username:{}, profile:{}'.format(user.id, user.username, user.profile)
  
# 查找
@admin.route('/user/find')
def user_find():
    from sqlalchemy.types import Integer
    # user = User.query.filter(User.profile['age'].astext.cast(Integer) >= 15).first()
    # user = User.query.filter(User.profile['city'].astext == 'longnan').first()
    # user = User.query.filter(User.profile['rmb'].astext.cast(Integer) >= 15).first()
    user = User.query.filter(User.profile['gender'].astext.cast(Integer) == 1).first()
    if user:
        return 'user finded: id:{}, username:{}, profile:{}'.format(user.id, user.username, user.profile)
    else:
        return 'not found'
    
# 聚合（COUNT）
@admin.route('/user/count')
def user_count():
    from sqlalchemy.types import Integer

    uc = User.query.filter(User.profile['gender'].astext.cast(Integer) == 1).count()

    return 'Count %r' % uc

# 聚合（SUM）
@admin.route('/user/sum')
def user_sum():
    from sqlalchemy.types import Integer
    from sqlalchemy.sql import func

    s = User.query.with_entities(func.sum(User.profile['rmb'].astext.cast(Integer))).filter(
        User.profile['gender'].astext.cast(Integer) == 1).scalar()

    return 'sum %r' % s

Can you post the JSON data as well?