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sscovil/property_pattern_L4.md

Last active December 4, 2023 16:36
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property_pattern_L4.md 
erDiagram
    SUBJECT_TYPE {
        any id PK
        string name
    }
    SUBJECT {
        any id PK
        any subject_type_id FK
    }
    SUBJECT_SUBJECT_TYPE_PROPERTY {
        any subject_id FK
        any subject_type_property_id FK
        any value
    }
    SUBJECT_TYPE_PROPERTY {
        any id PK
        any subject_type_id FK
        any property_id FK
    }
    PROPERTY {
        any id PK
        string key
    }
    SUBJECT_TYPE ||--o{ SUBJECT: ""
    SUBJECT_TYPE ||--o{ SUBJECT_TYPE_PROPERTY: ""
    SUBJECT ||--o{ SUBJECT_SUBJECT_TYPE_PROPERTY: ""
    SUBJECT_SUBJECT_TYPE_PROPERTY }o--|| SUBJECT_TYPE_PROPERTY: ""
    SUBJECT_TYPE_PROPERTY }o--|| PROPERTY: ""
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