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a d�h� � @ s� d Z ddlZddlmZmZ ddlmZmZmZ ddlm Z dZ dZ dZ d Z G d d � d e�Zddd�Zddd�Zddd�Zd dd�Zd dd�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)�PY2�r �� i� i� c @ sP e Zd ZdZddd�Zdd� Zdd� Zd d � Zd d � Ze rDd d� Z ndd� 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 | _|ptj| _d S �N)�adapted�_conn�json�dumps�_dumps)�selfr r � r �~/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/psycopg2/_json.py�__init__9 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 B s z Json.dumpsc C s || _ d S r )r )r �connr r r �prepareK s z Json.preparec C s2 | � | j�}t|�}| jd ur*|�| j� |�� S r )r r r r r � getquoted)r �s�qsr r r r N s zJson.getquotedc C s | � � S r )r �r r r r �__str__V s z Json.__str__c C s | � � �dd�S )N�ascii�replace)r �decoder r r r r Y s )N) �__name__� __module__� __qualname__�__doc__r r r r r r r r r r r r / s r Fr c C sf |du rt | |�\}}t||||�� d�\}}t|| r<| p>d� |dur^t|| rX| pZd� ||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_json^ s � r1 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. )r1 �JSON_OID� JSONARRAY_OID�r+ r, r& r r r �register_default_json� s �r5 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()`. Zjsonb)r+ r, r& r- r. r' )r1 � JSONB_OID�JSONBARRAY_OIDr4 r r r �register_default_jsonb� s �r8 r/ c sP � du rt j� � fdd�}t| f||�}|durDt|fd| |�}nd}||fS )z&Create typecasters for json data type.Nc s | d u r d S � | �S r r )r �cur�r& r r � typecast_json� s z/_create_json_typecasters.<locals>.typecast_jsonz%sARRAY)r r& r r )r- r. r& r' r; r/ r0 r r: r r) � s r) c C s� ddl m} ddlm} || �\}}|j}|jjdkr:dp<d}|�d| |f� |�� }||krn|j sn|� � |s�|� d| ��|S ) Nr )�STATUS_IN_TRANSACTION)�_solve_conn_cursi�9 �typarrayZNULLz6SELECT t.oid, %s FROM pg_type t WHERE t.typname = %%s;z%s data type not found) Zpsycopg2.extensionsr< Zpsycopg2.extrasr= �status�infoZserver_version�executeZfetchoneZ autocommit�rollbackZProgrammingError) r+ r' r< r= r ZcursZ conn_statusr> �rr r r r( � s" ��r( )NFNNNr )NFN)NFN)Nr/ )r )r% r Zpsycopg2._psycopgr r r r r Zpsycopg2.compatr r2 r3 r6 r7 �objectr r1 r5 r8 r) r( r r r r �<module> s / � '
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