Question

我正在使用for循环来输出单个数据库行的列和值。这一切都有效，但有几个问题。列名不适合在浏览器中输出，因此我正在寻找一种关联别名的方法（不确定这是正确的术语）

例如。列名：

cust_name
cust_area

期望的输出：

Customer name
Customer area

models.py

class Customers(db.Model):
    id = db.Column(db.Integer, primary_key = True)
    cust_name = db.Column(db.String(64))
    cust_area = db.Column(db.String(64))
    cat_id = db.Column(db.Integer(8), index = True)

views.py

customer = Customers.query.filter_by(cat_id = page).first()
test_dict = dict((col, getattr(test, col)) for col in test.__table__.columns.keys())
return render_template('test.html',
    customer = test_dict
    )

的test.html

{% for key, value in customer.items() %}
    {{ key }} : {{ value }}
{% endfor %}

谢谢！

Answer 1

使用info字典：

class Customers(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    cust_name = db.Column(db.String(64), info={'name': 'Customer name'})
    cust_area = db.Column(db.String(64), info={'name': 'Customer area'})
    cat_id = db.Column(db.Integer(8), index=True)

然后你可以迭代如下列：

customer = Customers.query.filter_by(cat_id=page).first()
data = dict((c.info.get('name', c.name), getattr(customer, c.name))
            for c in customer.__table__.c)
# Or using dict comprehension syntax (Python 2.7+).
data = {c.info.get('name', c.name): getattr(customer, c.name)
        for c in customer.__table__.c}

Flask-sqlalchemy列浏览器输出的别名

1 个答案: