B W²ç_ ã@sLdZddlmZmZmZmZddlmZGdd„deƒZ Gdd„de ƒZ d S) z Relationship-related objects. é)Úabsolute_importÚdivisionÚprint_functionÚunicode_literalsé)ÚCT_RelationshipscsxeZdZdZ‡fdd„Zddd„Zdd„Zd d „Zd d „Ze d d„ƒZ e dd„ƒZ ddd„Z dd„Z e dd„ƒZ‡ZS)Ú RelationshipszQ Collection object for |_Relationship| instances, having list semantics. cstt|ƒ ¡||_i|_dS)N)ÚsuperrÚ__init__Ú_baseURIÚ_target_parts_by_rId)ÚselfÚbaseURI)Ú __class__©ú>/var/www/html/venv/lib/python3.7/site-packages/docx/opc/rel.pyr szRelationships.__init__FcCs,t||||j|ƒ}|||<|s(||j|<|S)z@ Return a newly added |_Relationship| instance. )Ú _Relationshipr r )r ÚreltypeÚtargetÚrIdÚ is_externalÚrelrrrÚadd_relationships  zRelationships.add_relationshipcCs,| ||¡}|dkr(|j}| |||¡}|S)z~ Return relationship of *reltype* to *target_part*, newly added if not already present in collection. N)Ú _get_matchingÚ _next_rIdr)r rÚ target_partrrrrrÚ get_or_add!s  zRelationships.get_or_addcCs6|j||dd}|dkr0|j}|j|||dd}|jS)z Return rId of external relationship of *reltype* to *target_ref*, newly added if not already present in collection. T)rN)rrrr)r rÚ target_refrrrrrÚget_or_add_ext_rel,s z Relationships.get_or_add_ext_relcCs| |¡}|jS)z¶ Return target part of rel with matching *reltype*, raising |KeyError| if not found and |ValueError| if more than one matching relationship is found. )Ú_get_rel_of_typer)r rrrrrÚpart_with_reltype9s zRelationships.part_with_reltypecCs|jS)zq dict mapping rIds to target parts for all the internal relationships in the collection. )r )r rrrÚ related_partsBszRelationships.related_partscCs8t ¡}x(| ¡D]}| |j|j|j|j¡qW|jS)z Serialize this relationship collection into XML suitable for storage as a .rels file in an OPC package. ) rÚnewÚvaluesZadd_relrrrrÚxml)r Zrels_elmrrrrr$Js zRelationships.xmlcCs0dd„}x"| ¡D]}|||||ƒr|SqWdS)z‡ Return relationship of matching *reltype*, *target*, and *is_external* from collection, or None if not found. cSs>|j|krdS|j|krdS|jr(|jn|j}||kr:dSdS)NFT)rrrr)rrrrZ rel_targetrrrÚmatches\s  z,Relationships._get_matching..matchesN)r#)r rrrr%rrrrrWs  zRelationships._get_matchingcsV‡fdd„| ¡Dƒ}t|ƒdkr2d}t|ˆƒ‚t|ƒdkrNd}t|ˆƒ‚|dS)zà Return single relationship of type *reltype* from the collection. Raises |KeyError| if no matching relationship is found. Raises |ValueError| if more than one matching relationship is found. csg|]}|jˆkr|‘qSr)r)Ú.0r)rrrú qsz2Relationships._get_rel_of_type..rz*no relationship of type '%s' in collectionrz1multiple relationships of type '%s' in collection)r#ÚlenÚKeyErrorÚ ValueError)r rZmatchingÚtmplr)rrrks    zRelationships._get_rel_of_typecCs4x.tdt|ƒdƒD]}d|}||kr|SqWdS)z  Next available rId in collection, starting from 'rId1' and making use of any gaps in numbering, e.g. 'rId2' for rIds ['rId1', 'rId3']. rézrId%dN)Úranger()r ÚnZ rId_candidaterrrrzszRelationships._next_rId)F)F)Ú__name__Ú __module__Ú __qualname__Ú__doc__r rrrr Úpropertyr!r$rrrÚ __classcell__rr)rrrs      rcs^eZdZdZd‡fdd„ Zedd„ƒZedd„ƒZed d „ƒZed d „ƒZ ed d„ƒZ ‡Z S)rz0 Value object for relationship to part. Fcs4tt|ƒ ¡||_||_||_||_t|ƒ|_dS)N) r rr Ú_rIdÚ_reltypeÚ_targetr ÚboolÚ _is_external)r rrrrZexternal)rrrr Šs z_Relationship.__init__cCs|jS)N)r9)r rrrr’sz_Relationship.is_externalcCs|jS)N)r6)r rrrr–sz_Relationship.reltypecCs|jS)N)r5)r rrrršsz_Relationship.rIdcCs|jrtdƒ‚|jS)NzOtarget_part property on _Relationship is undefined when target mode is External)r9r*r7)r rrrržsz_Relationship.target_partcCs |jr |jS|jj |j¡SdS)N)r9r7ZpartnameZ relative_refr )r rrrr¥sz_Relationship.target_ref)F) r/r0r1r2r r3rrrrrr4rr)rrr†s    rN) r2Ú __future__rrrrZoxmlrÚdictrÚobjectrrrrrÚs x