I am using SQLAlchemy to read data from a SQL Server database and then turning the table data to a csv file to later hand off. However, I noticed when there is a 1 or 0 in a SQL Server table field, the csv output has True or False instead. I know to Python, it’s still a number since True
Tag: sqlalchemy
SQLAlchemy alternative names for table columns
I know my question must be very simple but I couldn’t find any straight answer to it. I am mapping a table with SQlAlchemy : How to I set up an label for the existing columns above to avoid they current name with spaces? Bonus question : What is the advantage of mapping as as class instead of mapping as
SqlAlchemy db.Enum: How to detect it and retrieve the values
I have a function to add a column to a model: I use it like: I call the col function for various columns. I would like to put the last line inside this function and it can be called on Enum type and fill the choices something like: However, it gives the error: Answer The first issue I’m seeing in
pydantic.error_wrappers.ValidationError: 11 validation errors for For Trip type=value_error.missing
Im getting this error with my pydantic schema, but oddly it is generating the object correctly, and sending it to the SQLAlchemy models, then it suddenly throws error for all elements in the model. i must say that all the fields should have values. And the error trace do not references any part of my code so …
How to select filtering by associated entries collection in sqlalchemy
I have many-to-many relationships for users and roles and I want to select user which have specific roles using realtions. For example I want to get user having: so I tried (where roles – List[Roles]) but I got then I tried where roles already List[str] And I got but any() selects entry that has any ass…
Iterating over 2 lists in SQL execution using SQL Alchemy
I currently have this query: That I changed to use bindparams: So before, I was able to make the query per table in the bmds_stage_table list and change_set_ids was just 1 int But now change_set_ids is a list of ints. So now, for each change_set_id I want to iterate through all the tables in the bmds_stage_ta…
How to call a variable outside a validate() function which is inside the FlaskForm class
I have two def validate(self) functions within the RegistrationForm(FlaskForm). First function validates the user input if the car range is over 400km. The other function validates if the user lives far or close to work by calculating the distance between the user’s address and work address by means of …
Flask_SQLAlchemy is claiming my value is not boolean?
I ran into the following error: I tried as boolean input everything ranging from 0|1, FALSE|TRUE, False|True on my main route. I have also tried to put in the boolean values inbetween quotations. What am I doing wrong? My base route being as follows Answer The problem you have is that the form submission is r…
SQLAlchemy Multitype columns – Hybrid Property querying
I have several tables in my PostgreSQL database that need to contain timeseries like information in an IoT-link context, that require several data types supported for the value of each point in the series, like this: I need to parse an incoming model from a REST API that has a single value field which can be …
Name from other page included in other page is not displayed
In my application, I would like to include the name, entered by the user, at page one, to the second page. But when I paste the jinja print “{{ data }}” to the table, the name does not appear on the second page. It works flawlessly on the first one. How can I make the name appear on both sides?