qjQZdZddlmZddlmZddlmZddlmZGddZeZ y ) z psycopg capabilities objects ) annotations)pq)_cmodule)NotSupportedErrorcveZdZdZddZdddZdddZdddZdddZdddZ dddZ ddd Z dd Z dd Z dd Zy ) Capabilitiesz\ An object to check if a feature is supported by the libpq available on the client. ci|_y)N)_cache)selfs V/var/www/html/kelly-backend/venv/lib/python3.12/site-packages/psycopg/_capabilities.py__init__zCapabilities.__init__s &( c*|jdd|S)z~Check if the `PGconn.encrypt_password()` method is implemented. The feature requires libpq 10.0 and greater. zpq.PGconn.encrypt_password()icheck _has_featurer rs r has_encrypt_passwordz!Capabilities.has_encrypt_password   !?u UUrc*|jdd|S)zCheck if the `ConnectionInfo.hostaddr` attribute is implemented. The feature requires libpq 12.0 and greater. zConnection.info.hostaddrirrrs r has_hostaddrzCapabilities.has_hostaddr   !;V5 QQrc*|jdd|S)z~Check if the :ref:`pipeline mode ` is supported. The feature requires libpq 14.0 and greater. zConnection.pipeline()"rrrs r has_pipelinezCapabilities.has_pipeline$s   !8& NNrc*|jdd|S)zCheck if the `pq.PGconn.set_trace_flags()` method is implemented. The feature requires libpq 14.0 and greater. zPGconn.set_trace_flags()rrrrs r has_set_trace_flagsz Capabilities.has_set_trace_flags+rrc*|jdd|S)z}Check if the `Connection.cancel_safe()` method is implemented. The feature requires libpq 17.0 and greater. zConnection.cancel_safe()rrrs r has_cancel_safezCapabilities.has_cancel_safe2rrc*|jdd|S)zCheck if `Cursor.stream()` can handle a `size` parameter value greater than 1 to retrieve results by chunks. The feature requires libpq 17.0 and greater. z4Cursor.stream() with 'size' parameter greater than 1r!rrrs r has_stream_chunkedzCapabilities.has_stream_chunked9s$   BFRW!  rc*|jdd|S)zCheck if the `pq.PGconn.send_closed_prepared()` method is implemented. The feature requires libpq 17.0 and greater. zPGconn.send_close_prepared()r!rrrs r has_send_close_preparedz$Capabilities.has_send_close_preparedCrrc||jvr|j|}n!|j||}||j|<|sy|r t|y)z Check is a version is supported. If `check` is true, raise an exception with an explicative message explaining why the feature is not supported. The expletive messages, are left to the user. TF)r _get_unsupported_messager)r feature want_versionrmsgs r rzCapabilities._has_featureJsU dkk !++g&C//FC#&DKK  #C( (rc tj|krUd|d|jdtjtjdtj|d Stj|krQd|dtj dtjtjdtj|d Sy) z Return a descriptinve message to describe why a feature is unsupported. Return an empty string if the feature is supported. z the feature 'z<' is not available: the client libpq version (imported from z) is z%; the feature requires libpq version z or newerz,' is not available: you are using a psycopg[z)] libpq wrapper built with libpq version )rversion _libpq_sourceversion_pretty__build_version____impl__)r r)r*s r r(z%Capabilities._get_unsupported_message`s ::<, &y)<<@rDs. #%r&r&l~ r