ג[i{(HdZddlmZmZmZmZddlmZGddZdS)aC Schema Manager Service This module provides manual schema evolution capabilities for MongoDB collections. Users can add new fields to collections through the UI with explicit confirmation. Key principles: - Field addition is MANUAL ONLY (user-initiated) - No automatic schema changes - No field deletion or renaming - Operations are idempotent (safe to re-run) - Existing data is NEVER modified - New fields default to null Safety features: - Check if field exists before adding - Preview before applying - Explicit user confirmation required - updateMany with $exists check )ListDictAnyOptional) Collectionc eZdZdZdddddZdZdedeefdZdedede fd Z deded ede ee ffd Z deded ede ee ffd Zdedede ee ffd ZdS) SchemaManagerz Service for managing MongoDB collection schemas. Provides safe, manual schema evolution capabilities including adding new fields to all documents in a collection. N)stringnumberbooleandatec||_dS)z Initialize schema manager with MongoDB connection. Args: mongo_service: MongoService instance N)mongo)self mongo_services 3/var/www/html/IGF-ODF-V3/services/schema_manager.py__init__zSchemaManager.__init__*s# collection_namereturnc|j|}|gS ddddiiiddiddd d id ig}t||}|rXd |d vrN|d d }t |}d|vr+|d|d d|SgS#t$r!}td|d|gcYd}~Sd}~wwxYw)a/ Get list of all fields that exist in a collection. This scans all documents and returns the union of all field names. Args: collection_name: Name of the collection Returns: Sorted list of unique field names Nz$projectfieldsz$objectToArrayz$$ROOTz$unwindz$fieldsz$groupz $addToSetz $fields.k)_id fieldNamesrrrzError getting fields for z: ) rget_collectionlist aggregatesortedremoveinsert Exceptionprint)rr collectionpipelineresultres rget_existing_fieldsz!SchemaManager.get_existing_fields3sNZ..??  I#   #3X">! y#'2K&@H"*..x8899F ,&)3 <0F?,MM%(((MM!U+++ I    DoDDDD E E EIIIIII s$BB20B22 C<CCC field_namec|j|}|dS ||ddii}|dkS#t$rYdSwxYw)a" Check if a field exists in any document in the collection. Args: collection_name: Name of the collection field_name: Name of the field to check Returns: True if field exists in at least one document NF$existsTr)rrcount_documentsr!)rrr(r#counts r field_existszSchemaManager.field_existsistZ..??  5 .. Ydocs_with_fielddocs_with_nulldocs_with_values rget_field_statisticsz"SchemaManager.get_field_statisticss Z..??  I 33ODDJ(88*yRVFW9XYYO'77T8JKKN(88T:::O $.(7'5(7YcfgYg'nuo .JS.PST'U'U'Umn     III sBB(( B76B7)__name__ __module__ __qualname____doc__r:rrJrr'boolr-rrr@rLrXrrr r sa K###434494444lCST0G G G  G c3h G G G G RHHH H c3h HHHHT!C!S!TRUWZRZ^!!!!!!rr N) r\typingrrrrpymongo.collectionrr r^rrras*-,,,,,,,,,,,))))))[[[[[[[[[[r