45 lines
1.6 KiB
Markdown
45 lines
1.6 KiB
Markdown
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utils
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=====
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This folder contains some scripts for preparing some data for the municipality of Wasseiges.
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## Init
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The scripts are python scripts that should run into a virtual environment.
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First, install the local dependencies:
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```bash
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$ pip3 install -r requirements.txt
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$ source bin/activate
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```
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## Import of the layer Arbres remarquables
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- This data is downloadable by <http://geoportail.wallonie.be/catalogue/d594f5a3-34ac-4cc2-a357-aae5d5263f35.html>
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- The layer MUST be converted to a valid geojson format in WGS84 coordinates.
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- Then simply run the script `geojson2sql` to produce a SQL file with some INSERT instructions.
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```bash
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(venv) python3 geojson2sql.py
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```
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### Some notes about this import
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The import script creates database entries by filling not all the field of the table. Only mandatory (non-nullable) fields and informative fields are filled.
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Here is the column list and the corresponding values list:
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```
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column_list = ['uuid_sinp', 'id_program', 'name', 'geom', 'timestamp_create', 'id_type', 'obs_txt']
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values_list = ['UUID', '2', 'import arbres remarquables', 'POINT', 'NOW', '1', 'import' ]
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```
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Some values in these list MUST follow some conventions:
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- the "UUID" value will be converted to a a formula that creates uuid value
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- the "POINT" value will be converted to a PostGIS ST_GeomFromText formula based on the coordinates of the geojson file
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- the "NOW" value will be converted to a formula that creates a timestamp
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Lastly, if the values starts with `properties.`, it will be mapped to a property in the geojson. E.g, `properties.COMMENTAIR`.
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