# Diagramme Relationnel de la Base de Données Geosector

```mermaid
erDiagram
    %% Tables de référence (x_*)
    x_devises ||--o{ x_pays : "fk_devise"
    x_pays ||--o{ x_regions : "fk_pays"
    x_regions ||--o{ x_departements : "fk_region"
    x_regions ||--o{ entites : "fk_region"
    x_entites_types ||--o{ entites : "fk_type"
    x_departements ||--o{ x_villes : "fk_departement"
    
    %% Utilisateurs et entités
    entites ||--o{ users : "fk_entite"
    entites ||--o{ operations : "fk_entite"
    x_users_roles ||--o{ users : "fk_role"
    x_users_titres ||--o{ users : "fk_titre"
    
    %% Opérations et secteurs
    operations ||--o{ ope_sectors : "fk_operation"
    operations ||--o{ ope_users : "fk_operation"
    operations ||--o{ ope_users_sectors : "fk_operation"
    operations ||--o{ ope_pass : "fk_operation"
    
    users ||--o{ ope_users : "fk_user"
    users ||--o{ ope_users_sectors : "fk_user"
    users ||--o{ ope_pass : "fk_user"
    users ||--o{ ope_pass_histo : "fk_user"
    
    ope_sectors ||--o{ ope_users_sectors : "fk_sector"
    ope_sectors ||--o{ sectors_adresses : "fk_sector"
    ope_sectors ||--o{ ope_pass : "fk_sector"
    
    ope_pass ||--o{ ope_pass_histo : "fk_pass"
    x_types_reglements ||--o{ ope_pass : "fk_type_reglement"
    
    %% Système de chat
    chat_rooms ||--o{ chat_participants : "id_room"
    chat_rooms ||--o{ chat_messages : "fk_room"
    chat_rooms ||--o{ chat_listes_diffusion : "fk_room"
    chat_rooms ||--o{ chat_notifications : "fk_room"
    
    users ||--o{ chat_rooms : "fk_user"
    users ||--o{ chat_participants : "id_user"
    users ||--o{ chat_messages : "fk_user"
    users ||--o{ chat_listes_diffusion : "fk_user"
    users ||--o{ chat_read_messages : "fk_user"
    users ||--o{ chat_notifications : "fk_user"
    
    chat_messages ||--o{ chat_read_messages : "fk_message"
    chat_messages ||--o{ chat_notifications : "fk_message"
    
    %% Définition des entités avec leurs attributs principaux
    x_devises {
        int_unsigned id PK
        string code
        string symbole
        string libelle
        tinyint_unsigned chk_active
    }
    
    x_pays {
        int_unsigned id PK
        int_unsigned fk_continent FK
        int_unsigned fk_devise FK
        string libelle
        tinyint_unsigned chk_active
    }
    
    x_regions {
        int_unsigned id PK
        int_unsigned fk_pays FK
        string libelle
        tinyint_unsigned chk_active
    }
    
    x_departements {
        int_unsigned id PK
        string code
        int_unsigned fk_region FK
        string libelle
        tinyint_unsigned chk_active
    }
    
    x_villes {
        int_unsigned id PK
        int_unsigned fk_departement FK
        string libelle
        string cp
        tinyint_unsigned chk_active
    }
    
    entites {
        int_unsigned id PK
        string libelle
        int_unsigned fk_region FK
        int_unsigned fk_type FK
        tinyint_unsigned chk_demo
        tinyint_unsigned chk_active
    }
    
    users {
        int_unsigned id PK
        int_unsigned fk_entite FK
        int_unsigned fk_role FK
        int_unsigned fk_titre FK
        string encrypted_name
        string encrypt_user_name
        string encrypt_password
        tinyint_unsigned chk_active
    }
    
    operations {
        int_unsigned id PK
        int_unsigned fk_entite FK
        string libelle
        date date_deb
        date date_fin
        tinyint_unsigned chk_active
    }
    
    ope_sectors {
        int_unsigned id PK
        int_unsigned fk_operation FK
        string libelle
        tinyint_unsigned chk_active
    }
    
    ope_users {
        int_unsigned id PK
        int_unsigned fk_operation FK
        int_unsigned fk_user FK
        tinyint_unsigned chk_active
    }
    
    ope_users_sectors {
        int_unsigned id PK
        int_unsigned fk_operation FK
        int_unsigned fk_user FK
        int_unsigned fk_sector FK
        tinyint_unsigned chk_active
    }
    
    sectors_adresses {
        int_unsigned id PK
        string fk_adresse
        int_unsigned osm_id
        int_unsigned fk_sector FK
        string rue
        string cp
        string ville
    }
    
    ope_pass {
        int_unsigned id PK
        int_unsigned fk_operation FK
        int_unsigned fk_sector FK
        int_unsigned fk_user FK
        int_unsigned fk_type_reglement FK
        timestamp passed_at
        tinyint_unsigned chk_active
    }
    
    ope_pass_histo {
        int_unsigned id PK
        int_unsigned fk_pass FK
        int_unsigned fk_user FK
    }
    
    chat_rooms {
        int_unsigned id PK
        string name
        enum type
        int_unsigned fk_user FK
        int_unsigned fk_entite FK
    }
    
    chat_messages {
        int_unsigned id PK
        int_unsigned fk_room FK
        int_unsigned fk_user FK
        text content
        enum statut
    }
    
    chat_read_messages {
        bigint_unsigned id PK
        int_unsigned fk_message FK
        int_unsigned fk_user FK
        timestamp date_read
    }
    
    chat_notifications {
        bigint_unsigned id PK
        int_unsigned fk_user FK
        int_unsigned fk_message FK
        int_unsigned fk_room FK
        string type
    }
```