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replace to_sql with to_postgis method #15

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Merged
merged 3 commits into from
Nov 6, 2021
Merged

replace to_sql with to_postgis method #15

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98213fc
replace to_sql with to_postgis method
iamtekson Oct 25, 2021
d31bba6
Update models.py
iamtekson Nov 4, 2021
6e74a8e
Update models.py
iamtekson Nov 6, 2021
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24 changes: 5 additions & 19 deletions geoApp/shp/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -49,25 +49,11 @@ def publish_data(sender, instance, created, **kwargs):
try:
req_shp = shp[0]
gdf = gpd.read_file(req_shp) # make geodataframe

crs_name = gdf.crs

epsg = crs_name.to_epsg()

if epsg is None:
epsg = 4326 # wgs 84 coordinate system

#geom_type = gdf.geom_type[1]

engine = create_engine(conn_str) # create the SQLAlchemy's engine to use

gdf['geom'] = gdf['geometry'].apply(lambda x: WKTElement(x.wkt, srid=epsg))

# Drop the geometry column (since we already backup this column with geom)
gdf.drop('geometry', 1, inplace=True)

gdf.to_sql(name, engine, 'data', if_exists='replace',
index=False, dtype={'geom': Geometry('Geometry', srid=epsg)}) # post gdf to the postgresql
gdf.to_postgis(
con=engine,
schema='data',
name=name,
if_exist="replace")

for s in shp:
os.remove(s)
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