Thanks Mike for suggestions, was able to solve both the issues with slight
changes in the db models
added lazy='dynamic' on both sides where back_populates is being used
--
SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
To post example code,
I'm sure that I'm missing a subtle point with batch migrations and
naming conventions for SQLite databases, but I can't figure out what I'm
doing wrong. After renaming a table, I'm using a batch migration to
update a foreign key in a child table. However, after recreating the
child table 2
I will say that the psycopg2 driver is not supporting this, however, it
isn't parsing out the tuple. Using postgresql.ARRAY we get an answer
like:
['{', '"', '(', 'x', ',', 'y', ')', '"', ',', '"', '(', 'x', ',', 'y',
')', '"', '}']
that is, the string coming back is being interpreted
can't reproduce (though the ARRAY(unicode) type is not what psycopg2
returns, and there seems to be a difference in behavior between
sqlalchemy.ARRAY and sqlalchemy.dialects.postgresql.ARRAY).
please provide a complete example based on the below test script and
stack traces
also my PG
Hi
I want to build such query with sqlalchemy:
SELECT array_agg((column1, column2)) from table
Using psql it works perfectly and returns such result:
{"(col1_row1_value, col2_row1_value)", "(col1_row2_value, col2_row2_value)"
...}
I tried several forms of SQLA-query:
>> from
On 04/11/2017 02:37 AM, shrey.chau...@invicto.in wrote:
Yes Mike will do that, mostly its marshmallow model schema which is
creating the object, as I am using Flask + marshmallow for APIs,
p.groups=[] //when i try to empty it, i get this exception
*AssertionError: Collection was
Yes Mike will do that, mostly its marshmallow model schema which is
creating the object, as I am using Flask + marshmallow for APIs,
apart from that I have another issue, which i am not able to uderstand:
I have a many-to-many relationship between 2 models, same as posted above,
still ill put
