AutoFields | QGIS plugin to configure automatic vector field updates
kandi X-RAY | AutoFields Summary
kandi X-RAY | AutoFields Summary
QGIS plugin to configure automatic attribute updates when creating or modifying vector features.
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Top functions reviewed by kandi - BETA
- Save the auto field
- Creates a new AutoField
- Save an AutoField to the given layer
- Build an auto field ID for a given field
- Updates field and expression controls
- Updates the widgets for a given button
- Populates the Layers table
- Set the expression builder dialog
- Return the expression for a given field
- Read AutoFields from settings
- Return the layer with the given auto source
- Return a list of candidates for a given AF
- Creates or overwrites the configured AutoFields
- Called when a new field is changed
- Removes AutoField from the table
- Check if AutoFields are enabled
- Checks if all layers are enabled
- Check if AutoFields are enabled for a given layer
- Populates the combobox
- Exports selected AutoFields
- Populates the autoFields table
- Accepts the current layer
- Disable auto field
- Populates the auto fields table
- Updates the feature based on the given features
- Save showOnlyEnabledFlag
AutoFields Key Features
AutoFields Examples and Code Snippets
Community Discussions
Trending Discussions on AutoFields
QUESTION
I am creating a Django app where the primary keys are AutoFields. i.e. I am not manually assigning any field as primary key in my models.
I need to use mySQL.
I will need to export all the data to excel or perhaps another django app from time to time. Therefore the primary keys must be unique to be able to identify new records or records to be deleted in excel/other app.
However, I have read that mySQL autoincrement counter resets to the max key when database restarts. This will result in reassignment of keys if the latest records were deleted.
I need to avoid this. No key should be reassigned.
How can this be done?
...ANSWER
Answered 2021-Mar-03 at 19:13MySQL 8.0 now keeps the last auto-increment per table persistently. So it remembers between restarts, and does not reset the auto-increment.
https://www.percona.com/blog/2018/10/08/persistence-of-autoinc-fixed-in-mysql-8-0/
QUESTION
I want to have in my model, instead of the complete set of entries of the models contained by another one, just the quantity of them. I could do this by adding the "size" field to the resultset, but I'd like to do this in the query, as I want to paginate and order the results dinamically. I am using this code, but for some reason, if the first count is different from zero, both count fields have the same value, which is the value of the second count field.
...ANSWER
Answered 2020-Dec-11 at 17:49If you have multiple joins, then you need to count with DISTINCT
, eg:
QUESTION
ANSWER
Answered 2017-Oct-13 at 06:49I found some solution to this problem. I know this is not the best solutions and it should work properly without any kind of manual code. But even though everything's fine, and your code is not working THEN and ONLY THEN you should try the below-given code.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install AutoFields
You can use AutoFields like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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