o
    úÑÐb–
  ã                   @   sJ   d dl mZmZ d dlmZ d dlmZ G dd„ deƒZG dd„ dƒZdS )	é    )ÚCoordTransformÚSpatialReference©ÚSerializerDoesNotExist)Ú
Serializerc                       sP   e Zd ZdZ‡ fdd„Zdd„ Zdd„ Z‡ fdd	„Zd
d„ Z‡ fdd„Z	‡  Z
S )r   z<
    Convert a queryset to GeoJSON, http://geojson.org/
    c                    sl   t ƒ  ¡  | j dd ¡| _| j dd¡| _| jd ur0| jd ur2| j| jvr4g | j¢| j‘| _d S d S d S d S )NÚgeometry_fieldÚsridiæ  )ÚsuperÚ_init_optionsZjson_kwargsÚpopr   r   Úselected_fields©Úself©Ú	__class__© úe/var/www/secure340b-portal/env/lib/python3.10/site-packages/django/contrib/gis/serializers/geojson.pyr
   
   s   

ÿþzSerializer._init_optionsc                 C   s$   |   ¡  i | _| j d| j ¡ d S )Nzg{"type": "FeatureCollection", "crs": {"type": "name", "properties": {"name": "EPSG:%d"}}, "features": [)r
   Ú_ctsÚstreamÚwriter   r   r   r   r   Ústart_serialization   s   ÿÿzSerializer.start_serializationc                 C   s   | j  d¡ d S )Nz]})r   r   r   r   r   r   Úend_serialization   s   zSerializer.end_serializationc                    sJ   t ƒ  |¡ d | _| jd u r!|jjD ]}t|dƒr |j| _ d S qd S d S )NZ	geom_type)r	   Ústart_objectÚ	_geometryr   Ú_metaÚfieldsÚhasattrÚname©r   ÚobjÚfieldr   r   r   r      s   

þýzSerializer.start_objectc                 C   s¼   d| j dœ}| jd u sd| jv r!d|d vr!|jj |¡|d d< | jrX| jj| jkrN| jj| jvrCt| jƒ}t	| jj
|ƒ| j| jj< | j | j| jj ¡ t| jjƒ|d< |S d |d< |S )NZFeature)ÚtypeÚ
propertiesÚpkr"   Zgeometry)Ú_currentr   r   r#   Zvalue_to_stringr   r   r   r   r   ÚsrsZ	transformÚevalZgeojson)r   r   Údatar%   r   r   r   Úget_dump_object&   s"   þ
ÿ
ÿzSerializer.get_dump_objectc                    s.   |j | jkr| |¡| _d S tƒ  ||¡ d S )N)r   r   Zvalue_from_objectr   r	   Úhandle_fieldr   r   r   r   r)   :   s   zSerializer.handle_field)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r
   r   r   r   r(   r)   Ú__classcell__r   r   r   r   r      s    
r   c                   @   s   e Zd Zdd„ ZdS )ÚDeserializerc                 O   s   t dƒ‚)Nz*geojson is a serialization-only serializerr   )r   ÚargsÚkwargsr   r   r   Ú__init__B   s   zDeserializer.__init__N)r*   r+   r,   r2   r   r   r   r   r/   A   s    r/   N)	Zdjango.contrib.gis.gdalr   r   Zdjango.core.serializers.baser   Zdjango.core.serializers.jsonr   ZJSONSerializerr/   r   r   r   r   Ú<module>   s
    ;