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o �h�# � @ sf d Z ddlmZ ddlmZmZmZmZmZm Z m Z ddd�Z dd � Z dd d �Z d S )z� This module is for inspecting OGR data sources and generating either models for GeoDjango and/or mapping dictionaries for use with the `LayerMapping` utility. � )� DataSource)�OFTDate� OFTDateTime� OFTInteger� OFTInteger64�OFTReal� OFTString�OFTTime�geomFc C s� t | t�r t| �} n t | t�rntd��i }| | jD ]}|�� }|dd� dkr-|d7 }|||< q| | j}|r=|�� t|��� ||< |S )a� Given a DataSource, generate a dictionary that may be used for invoking the LayerMapping utility. Keyword Arguments: `geom_name` => The name of the geometry field to use for the model. `layer_key` => The key for specifying which layer in the DataSource to use; defaults to 0 (the first layer). May be an integer index or a string identifier for the layer. `multi_geom` => Boolean (default: False) - specify as multigeometry. �>Data source parameter must be a string or a DataSource object.���N�_�field) � isinstance�strr � TypeError�fields�lower� geom_type�to_multi�upper)� data_source� geom_name� layer_key� multi_geom�_mappingr �mfield�gtype� r �V/usr/local/CyberCP/lib/python3.10/site-packages/django/contrib/gis/utils/ogrinspect.py�mapping s$ � r c O s d� t| i |���S )a� Given a data source (either a string or a DataSource object) and a string model name this function will generate a GeoDjango model. Usage: >>> from django.contrib.gis.utils import ogrinspect >>> ogrinspect('/path/to/shapefile.shp','NewModel') ...will print model definition to stout or put this in a Python script and use to redirect the output to a new model like: $ python generate_model.py > myapp/models.py # generate_model.py from django.contrib.gis.utils import ogrinspect shp_file = 'data/mapping_hacks/world_borders.shp' model_name = 'WorldBorders' print(ogrinspect(shp_file, model_name, multi_geom=True, srid=4326, geom_name='shapes', blank=True)) Required Arguments `datasource` => string or DataSource object to file pointer `model name` => string of name of new model class to create Optional Keyword Arguments `geom_name` => For specifying the model name for the Geometry Field. Otherwise will default to `geom` `layer_key` => The key for specifying which layer in the DataSource to use; defaults to 0 (the first layer). May be an integer index or a string identifier for the layer. `srid` => The SRID to use for the Geometry Field. If it can be determined, the SRID of the datasource is used. `multi_geom` => Boolean (default: False) - specify as multigeometry. `name_field` => String - specifies a field name to return for the __str__() method (which will be generated if specified). `imports` => Boolean (default: True) - set to False to omit the `from django.contrib.gis.db import models` code from the autogenerated models thus avoiding duplicated imports when building more than one model by batching ogrinspect() `decimal` => Boolean or sequence (default: False). When set to True all generated model fields corresponding to the `OFTReal` type will be `DecimalField` instead of `FloatField`. A sequence of specific field names to generate as `DecimalField` may also be used. `blank` => Boolean or sequence (default: False). When set to True all generated model fields will have `blank=True`. If the user wants to give specific fields to have blank, then a list/tuple of OGR field names may be used. `null` => Boolean (default: False) - When set to True all generated model fields will have `null=True`. If the user wants to specify give specific fields to have null, then a list/tuple of OGR field names may be used. Note: Call the _ogrinspect() helper to do the heavy lifting. � )�join� _ogrinspect)�args�kwargsr r r � ogrinspect: s Dr& NTc # s~ � t | t�r t| �} n t | t�rntd��| | } | j��fdd�} | | ��| | �� | |�} � �fdd�}|rCdV dV dV dV d | V t�| j| j| j�D ]�\}}}}|� � }|d d � d krh|d 7 }||�}|t u r�|� � | v r�d||||f V qRd||dd � f V qR|t u r�d||dd � f V qR|t u r�d||dd � f V qR|t u r�d|||f V qR|tu r�d||dd � f V qR|tu r�d||dd � f V qR|tu r�d||dd � f V qRtd||f ��| j}|r�|�� |j}|d u �r$| jd u �r d}n | jj}|d u �rd}n|dk�r d}n d| }nd| }d|||f V |�r=dV d | V d S d S ) z� Helper routine for `ogrinspect` that generates GeoDjango models corresponding to the given data source. See the `ogrinspect` docstring for more details. r c s2 t | ttf�rdd� | D �S | rdd� � D �S g S )Nc S � g | ]}|� � �qS r �r ��.0�sr r r � <listcomp>� � z6_ogrinspect.<locals>.process_kwarg.<locals>.<listcomp>c S r' r r( r) r r r r, � r- )r �list�tuple)�kwarg)� ogr_fieldsr r � process_kwarg� s z"_ogrinspect.<locals>.process_kwargc sF g }| � � �v r |�d� | � � � v r|�d� |r!dd�|� S dS )Nz null=Truez blank=Truez, � )r �appendr" )� field_name�kwlist)� blank_fields� null_fieldsr r �get_kwargs_str� s z#_ogrinspect.<locals>.get_kwargs_strzF# This is an auto-generated Django model module created by ogrinspect.z(from django.contrib.gis.db import modelsr3 zclass %s(models.Model):r Nr r z@ %s = models.DecimalField(max_digits=%d, decimal_places=%d%s)z %s = models.FloatField(%s)� z %s = models.IntegerField(%s)z# %s = models.BigIntegerField(%s)z* %s = models.CharField(max_length=%s%s)z %s = models.DateField(%s)z! %s = models.DateTimeField(%s)z %s = models.TimeField(%s)zUnknown field type %s in %szsrid=-1i� zsrid=%sz %s = models.%s(%s)z% def __str__(self): return self.%s)r r r r r �zip� field_widths�field_precisions� field_typesr r r r r r r r r r �django�srs�srid)r � model_namer r rA r � name_field�imports�decimal�blank�null�layerr2 �decimal_fieldsr9 r5 �width� precision� field_typer � kwargs_strr � geom_field�srid_strr )r7 r8 r1 r r# � s� � � � �� � �r# )r r F) r r NFNTFFF)�__doc__�django.contrib.gis.gdalr � django.contrib.gis.gdal.fieldr r r r r r r r r& r# r r r r �<module> s $ (J�
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