Ng ddlZddlmZddlmZmZmZmZGddZ d dee dee dee d ee d ef d Z dS) N)ceil)AnyDictListOptionalc eZdZdZdeddfdZedefdZedee effdZ deddfdZ dd e ee efddfd Z dd edee eee efffd Z dde de ededeee effdZe dde e de e de e de e def dZdS) ArangoGraphaArangoDB wrapper for graph operations. *Security note*: Make sure that the database connection uses credentials that are narrowly-scoped to only include necessary permissions. Failure to do so may result in data corruption or loss, since the calling code may attempt commands that would result in deletion, mutation of data if appropriately prompted or reading sensitive data if such data is present in the database. The best way to guard against such negative outcomes is to (as appropriate) limit the permissions granted to the credentials used with this tool. See https://python.langchain.com/docs/security for more information. dbreturnNcX|||dS)z-Create a new ArangoDB graph wrapper instance.N)set_db set_schema)selfr s e/var/www/html/ai-engine/env/lib/python3.11/site-packages/langchain_community/graphs/arangodb_graph.py__init__zArangoGraph.__init__s' B c|jSN)_ArangoGraph__dbrs rr zArangoGraph.dbs yrc|jSr)_ArangoGraph__schemars rschemazArangoGraph.schemas }rcddlm}t||sd}t|||_|dS)Nr)Databasez;**db** parameter must inherit from arango.database.Database)arango.databaser isinstance TypeErrorrr)rr rmsgs rr zArangoGraph.set_db"sT,,,,,,"h'' !OCC..    rrc@||n||_dS)zo Set the schema of the ArangoDB Database. Auto-generates Schema if **schema** is None. N)generate_schemar)rrs rrzArangoGraph.set_schema,s$ 39.,,...f rr sample_ratioc d|cxkrdksntdd|jD}g}|jD]}|dr |d}|d}|j|}|dkrNt ||zpd}d|d |d } g} |jj | D]F} | D]/\} } | | t| j d 0G| d |d ||d| d|| i||dS)a  Generates the schema of the ArangoDB Database and returns it User can specify a **sample_ratio** (0 to 1) to determine the ratio of documents/edges used (in relation to the Collection size) to render each Collection Schema. rz0**sample_ratio** value must be in between 0 to 1c0g|]}|d|ddS)nameedge_definitions) graph_namer').0gs r z/ArangoGraph.generate_schema..@s:. . . V9!>@@H1}} x 788=AL$'C02Jy},,S11 S S"%))++SSJC%%sDKK.vs??????r) itertoolsrr8r9islice)rrGrHrIrLcursors rrGzArangoGraph.queryosR &&u7777??y//>>????rurldbnameusernamepasswordc>t||||}||S)aConvenience constructor that builds Arango DB from credentials. Args: url: Arango DB url. Can be passed in as named arg or set as environment var ``ARANGODB_URL``. Defaults to "http://localhost:8529". dbname: Arango DB name. Can be passed in as named arg or set as environment var ``ARANGODB_DBNAME``. Defaults to "_system". username: Can be passed in as named arg or set as environment var ``ARANGODB_USERNAME``. Defaults to "root". password: Can be passed ni as named arg or set as environment var ``ARANGODB_PASSWORD``. Defaults to "". Returns: An arango.database.StandardDatabase. )rOrPrQrR)get_arangodb_client)clsrOrPrQrRr s rfrom_db_credentialszArangoGraph.from_db_credentialsxs0.!FX   s2wwrr)rNNNN)r< __module__ __qualname____doc__rrpropertyr rstrrr rrfloatrr!intrG classmethodrVr)rrr r s   34 CXS#XXMM$sCx.!9MTMMMM%&:V:V!:V c4S#X'' (:V:V:V:Vz26@@@!)#@AD@ d38n @@@@" $"&"&  c] 3-  3-  [rr rOrPrQrRr c ddlm}n"#t$r}td|d}~wwxYw|ptjdd}|ptjdd}|ptjd d }|ptjd d } ||||| d S)aGet the Arango DB client from credentials. Args: url: Arango DB url. Can be passed in as named arg or set as environment var ``ARANGODB_URL``. Defaults to "http://localhost:8529". dbname: Arango DB name. Can be passed in as named arg or set as environment var ``ARANGODB_DBNAME``. Defaults to "_system". username: Can be passed in as named arg or set as environment var ``ARANGODB_USERNAME``. Defaults to "root". password: Can be passed ni as named arg or set as environment var ``ARANGODB_PASSWORD``. Defaults to "". Returns: An arango.database.StandardDatabase. r) ArangoClientzIUnable to import arango, please install with `pip install python-arango`.N ARANGODB_URLzhttp://localhost:8529ARANGODB_DBNAME_systemARANGODB_USERNAMErootARANGODB_PASSWORDT)verify)arangora ImportErrorosenvirongetr ) rOrPrQrRrae_url_dbname _username _passwords rrTrTs*'''''''  W    Nrz~~n6MNNDIRZ^^,=yIIGL0CV!L!LIH0CR!H!HI <   )Yt L LLs (#(rW) rlmathrtypingrrrrr r\rTr)rrrvs ,,,,,,,,,,,,LLLLLLLL` "" !M!M #!M SM!Msm!Msm !M  !M!M!M!M!M!Mr