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rhs_params�super�__init__�template_params�process_rhs_params)r r �rhs�� __class__r r r s zGISLookup.__init__c C sn | j r't| j �| jdkrdndkr| �� d S t| j �dkr%td| j ��d S t| jt�r5| jdd� d S d S )N�relate� � z Tuple too long for lookup %s.T)�only_lhs)r �len� lookup_name�process_band_indices�
ValueErrorr r r �r r r r r" s � �z GISLookup.process_rhs_paramsc C sP |rd| _ | jjd | _dS t| jt�r | jjd | _nd| _| j^| _ | _dS )z
Extract the lhs band index from the band transform class and the rhs
band index from the input tuple.
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band_index�band_lhsr r r )r r) r r r r, % s z GISLookup.process_band_indicesc C s d|j �|�gfS )N�%s)�ops�Adapter)r �valuer r r r �get_db_prep_lookup8 s z GISLookup.get_db_prep_lookupc sj t | jt�r
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r c @ � e Zd ZdZdZdS )�OverlapsLeftLookupzy
The overlaps_left operator returns true if A's bounding box overlaps or is to the
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overlaps_leftN�r r r �__doc__r+ r r r r rJ Z � rJ c @ rI )�OverlapsRightLookupz}
The 'overlaps_right' operator returns true if A's bounding box overlaps or is to the
right of B's bounding box.
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The 'overlaps_below' operator returns true if A's bounding box overlaps or is below
B's bounding box.
�overlaps_belowNrL r r r r rQ l rN rQ c @ rI )�OverlapsAboveLookupzs
The 'overlaps_above' operator returns true if A's bounding box overlaps or is above
B's bounding box.
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The 'left' operator returns true if A's bounding box is strictly to the left
of B's bounding box.
�leftNrL r r r r rU ~ rN rU c @ rI )� RightLookupzq
The 'right' operator returns true if A's bounding box is strictly to the right
of B's bounding box.
�rightNrL r r r r rW � rN rW c @ rI )�StrictlyBelowLookupzp
The 'strictly_below' operator returns true if A's bounding box is strictly below B's
bounding box.
�strictly_belowNrL r r r r rY � rN rY c @ rI )�StrictlyAboveLookupzp
The 'strictly_above' operator returns true if A's bounding box is strictly above B's
bounding box.
�strictly_aboveNrL r r r r r[ � rN r[ c @ rI )� SameAsLookupz�
The "~=" operator is the "same as" operator. It tests actual geometric
equality of two features. So if A and B are the same feature,
vertex-by-vertex, the operator returns true.
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The 'bbcontains' operator returns true if A's bounding box completely contains
by B's bounding box.
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The 'bboverlaps' operator returns true if A's bounding box overlaps B's bounding box.
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bboverlapsNrL r r r r rb � s rb c @ rI )�ContainedLookupzt
The 'contained' operator returns true if A's bounding box is completely contained
by B's bounding box.
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CrossesLookup�crossesNri r r r r rq � rj rq c @ rf )�DisjointLookup�disjointNri r r r r rs � rj rs c @ rf )� EqualsLookup�equalsNri r r r r ru � rj ru c @ rf )�IntersectsLookup�
intersectsNri r r r r rw � rj rw c @ rf )�OverlapsLookup�overlapsNri r r r r ry � rj ry c s, e Zd ZdZdZed�Z� fdd�Z� ZS )� RelateLookupr& z %(func)s(%(lhs)s, %(rhs)s, %%s)z^[012TF\*]{9}$c sp | j d }|jj| j }t|d�r|�|� nt|t�r"| j� |�s(t
d| ��t � � ||�\}}|||g fS )Nr �check_relate_argumentz)Invalid intersection matrix pattern "%s".)
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dksn td| j ��t | j�dkr'| jd dkr'td��t | j�dkr;| jd dkr=| �� d S d S d S )Nr( � z22, 3, or 4-element tuple required for '%s' lookup.r' �spheroidzHFor 4-element tuples the last argument must be the 'spheroid' directive.)r* r r- r+ r, r. r r r r" s �z%DistanceLookupBase.process_rhs_paramsc C sB | j d }t|d�r|�|�|j��S d|j�| jj| j | j �fS )Nr r8 r2 )
r r} r
r8 r9 r3 � get_distancer r; r+ �r r r �
dist_paramr r r �process_distance$ s
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r� c s0 e Zd ZdZdZ� fdd�Z� fdd�Z� ZS )�
DWithinLookup�dwithinz%%(func)s(%(lhs)s, %(rhs)s, %(value)s)c s< | j d }|jjst|d�rt|t�std��t� �||�S )Nr r8 zXThis backend does not support expressions for specifying distance in the dwithin lookup.) r �features� supports_dwithin_distance_exprr} r r r r r� r� r$ r r r� 2 s
����z DWithinLookup.process_distancec s8 | � ||�\}}|| jd< t� �||�\}}||| fS )Nr5 )r� r! r r7 )r r r �dist_sql� dist_paramsrB r� r$ r r r7 ? s
zDWithinLookup.process_rhs)r r r r+ rE r� r7 rH r r r$ r r� - s
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)�DistanceLookupFromFunctionc C sv t | j�dkr| jd dkpd }|jj| j| j|d�}|�|�|j��\}}| � ||�\}}d|| j
|d� || fS )Nr' ���r� )r� z%(func)s %(op)s %(dist)s)�func�op�dist) r* r r3 �distance_expr_for_lookupr r# r
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distance_exprr� r� r� r� r r r r G s �z!DistanceLookupFromFunction.as_sqlNr r r r r r� F r r� c @ rI )�DistanceGTLookup� distance_gt�>N�r r r r+ r� r r r r r� R � r� c @ rI )�DistanceGTELookup� distance_gtez>=Nr� r r r r r� X r� r� c @ rI )�DistanceLTLookup� distance_lt�<Nr� r r r r r� ^ r� r� c @ rI )�DistanceLTELookup� distance_ltez<=Nr� r r r r r� d r� r� N)0�#django.contrib.gis.db.models.fieldsr �django.contrib.gis.measurer � django.dbr �django.db.modelsr r r �django.db.models.sql.queryr �django.utils.regex_helperr r r �register_lookuprJ rO rQ rS rU rW rY r[ r] r` rb rd rg rk rm ro rq rs ru rw ry r{ r� r� r� r� r� r� r� r� r� r r r r �<module> s� L