File: //home/arjun/projects/env/lib64/python3.10/site-packages/psycopg2/__pycache__/_json.cpython-310.pyc
o
we� � @ s� d Z ddlZddlmZmZ ddlmZmZmZ dZdZ dZ
dZG d d
� d
�Z dd
d�Z
ddd�Zddd�Zddd�Zddd�ZdS )z�Implementation of the JSON adaptation objects
This module exists to avoid a circular import problem: pyscopg2.extras depends
on psycopg2.extension, so I can't create the default JSON typecasters in
extensions importing register_json from extras.
� N)� ISQLQuote�QuotedString)�new_type�new_array_type�
register_type�r �� i� i� c @ sB e Zd ZdZddd�Zdd� Zdd� Zd d
� Zdd� Zd
d� Z dS )�Jsona
An `~psycopg2.extensions.ISQLQuote` wrapper to adapt a Python object to
:sql:`json` data type.
`!Json` can be used to wrap any object supported by the provided *dumps*
function. If none is provided, the standard :py:func:`json.dumps()` is
used.
Nc C s || _ d | _|p
tj| _d S �N)�adapted�_conn�json�dumps�_dumps)�selfr r � r �G/home/arjun/projects/env/lib/python3.10/site-packages/psycopg2/_json.py�__init__8 s z
Json.__init__c C s |t u r| S d S r
)r )r �protor r r �__conform__= s �zJson.__conform__c C s
| � |�S )z�Serialize *obj* in JSON format.
The default is to call `!json.dumps()` or the *dumps* function
provided in the constructor. You can override this method to create a
customized JSON wrapper.
)r )r �objr r r r A s
z
Json.dumpsc C s
|| _ d S r
)r )r �connr r r �prepareJ s
zJson.preparec C s2 | � | j�}t|�}| jd ur|�| j� |�� S r
)r r r r r � getquoted)r �s�qsr r r r M s
zJson.getquotedc C s | � � �dd�S )N�ascii�replace)r �decode)r r r r �__str__T s zJson.__str__r
)
�__name__�
__module__�__qualname__�__doc__r r r r r r r r r r r . s
r Fr
c C sf |du rt | |�\}}t||||�� d�\}}t|| r| pd� |dur/t|| r,| p-d� ||fS )a Create and register typecasters converting :sql:`json` type to Python objects.
:param conn_or_curs: a connection or cursor used to find the :sql:`json`
and :sql:`json[]` oids; the typecasters are registered in a scope
limited to this object, unless *globally* is set to `!True`. It can be
`!None` if the oids are provided
:param globally: if `!False` register the typecasters only on
*conn_or_curs*, otherwise register them globally
:param loads: the function used to parse the data into a Python object. If
`!None` use `!json.loads()`, where `!json` is the module chosen
according to the Python version (see above)
:param oid: the OID of the :sql:`json` type if known; If not, it will be
queried on *conn_or_curs*
:param array_oid: the OID of the :sql:`json[]` array type if known;
if not, it will be queried on *conn_or_curs*
:param name: the name of the data type to look for in *conn_or_curs*
The connection or cursor passed to the function will be used to query the
database and look for the OID of the :sql:`json` type (or an alternative
type if *name* if provided). No query is performed if *oid* and *array_oid*
are provided. Raise `~psycopg2.ProgrammingError` if the type is not found.
N)�loads�name)�_get_json_oids�_create_json_typecasters�upperr )�conn_or_curs�globallyr$ �oid� array_oidr% �JSON� JSONARRAYr r r �
register_jsonY s
�r/ c C s t | ||ttd�S )a{
Create and register :sql:`json` typecasters for PostgreSQL 9.2 and following.
Since PostgreSQL 9.2 :sql:`json` is a builtin type, hence its oid is known
and fixed. This function allows specifying a customized *loads* function
for the default :sql:`json` type without querying the database.
All the parameters have the same meaning of `register_json()`.
)r) r* r$ r+ r, )r/ �JSON_OID�
JSONARRAY_OID�r) r* r$ r r r �register_default_json� s �r3 c C s t | ||ttdd�S )a^
Create and register :sql:`jsonb` typecasters for PostgreSQL 9.4 and following.
As in `register_default_json()`, the function allows to register a
customized *loads* function for the :sql:`jsonb` type at its known oid for
PostgreSQL 9.4 and following versions. All the parameters have the same
meaning of `register_json()`.
�jsonb)r) r* r$ r+ r, r% )r/ � JSONB_OID�JSONBARRAY_OIDr2 r r r �register_default_jsonb� s �r7 r- c sX � du rt j� � fdd�}t| f||�}|dur&t|f|� d�|�}||fS d}||fS )z&Create typecasters for json data type.Nc s | d u rd S � | �S r
r )r �cur�r$ r r �
typecast_json� s z/_create_json_typecasters.<locals>.typecast_json�ARRAY)r
r$ r r )r+ r, r$ r% r: r- r. r r9 r r'