R hD`dZddlmZddlmZmZddlmZGddZeZ dS) z psycopg capabilities objects ) annotations)_cmodulepq)NotSupportedErrorcxeZdZdZddZdddZddd Zddd Zddd Zddd Z ddd Z dddZ ddZ ddZ ddZdS) Capabilitiesz\ An object to check if a feature is supported by the libpq available on the client. returnNoneci|_dS)N)_cache)selfs `/var/www/html/01_SiteInternet/03_Maps/venv/lib/python3.11/site-packages/psycopg/_capabilities.py__init__zCapabilities.__init__s &( Fcheckboolc2|dd|S)z~Check if the `PGconn.encrypt_password()` method is implemented. The feature requires libpq 10.0 and greater. zpq.PGconn.encrypt_password()ir _has_featurerrs rhas_encrypt_passwordz!Capabilities.has_encrypt_password   !?u UUUrc2|dd|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 QQQrc2|dd|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& NNNrc2|dd|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 rhas_set_trace_flagsz Capabilities.has_set_trace_flags*rrc2|dd|S)z}Check if the `Connection.cancel_safe()` method is implemented. The feature requires libpq 17.0 and greater. zConnection.cancel_safe()rrrs rhas_cancel_safezCapabilities.has_cancel_safe1rrc2|dd|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$rrrs rhas_stream_chunkedzCapabilities.has_stream_chunked8s)   BFRW!   rc2|dd|S)zCheck if the `pq.PGconn.send_closed_prepared()` method is implemented. The feature requires libpq 17.0 and greater. zPGconn.send_close_prepared()r$rrrs rhas_send_close_preparedz$Capabilities.has_send_close_preparedBrrfeaturestr want_versionintc||jvr|j|}n |||}||j|<|sdS|rt|dS)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)rr*r,rmsgs rrzCapabilities._has_featureIsh dk ! !+g&CC//FFC#&DK  4  #C(( (5rc tj|krVd|d|dtjtjdtj|d Stj|krGd|dtjdtjtjdtj|d SdS) 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__)rr*r,s rr/z%Capabilities._get_unsupported_message_s :<<, & &<@rDs #"""""%%%%%%r&r&r&r&r&r&r&r&l|~~ r