I try add to some table new column, how its described in documentation for sqlalchemy-migrate< like:
So say, for example I have two classes: Base = declarative_base() class Vendor(Base): __tablename__ = \"vendor\"
How can I update a row\'s information? For example I\'d like to alter the name column of th开发者_运维技巧e row that has the id 5. Retrieve an object using the tutorial shown in the Flask-SQLAlchemy
I\'m beginning to develop a site in Pyramid and, before I commit to using SQLAlchemy, would like to know if it\'s possible to wrap/extend it to add in \'database lock\' functionality.
I would like to be able to call Duration.create_duration_field() with different parameters and have more than one hybrid_property created on my class. The only difference would be that different times
I have created a database in PostgreSQL (8.4 - I need to use this version because I want to use MapFish which does not (yet) support 9.0) which has some inherited tables:
Assuming two models in a many to many relationship: parent_child = Table(\'parent_child\', metadata, Column(\'parent_id\', Integer, ForeignKey(\'parent.id\')),
I am using Python 2.6.6 and SQLAlchemy 0.6.6 to handle a one to many relationship in my database, and am unsure how to prevent SQLAlchemy from adding new child records in the case where similar data a
During some set operations I encountered this error in Python: TypeError: unhashable type: \'InstrumentedList\'
I have a problem of using event listener with the relation model, my model class is a self referenced table:
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