Initial certificate system

backend/app/schemas/certificate.py

@@ -0,0 +1,39 @@
+from datetime import date, datetime
+
+from pydantic import BaseModel, Field, field_validator
+
+
+class CertificateCreate(BaseModel):
+    learner_id: int
+    project_code: str = Field(min_length=2, max_length=16)
+    certificate_name: str | None = Field(default=None, max_length=128)
+    class_name: str | None = Field(default=None, max_length=128)
+    course_name: str | None = Field(default=None, max_length=128)
+    stage_name: str | None = Field(default=None, max_length=128)
+    issue_date: date
+    issuer_name: str = Field(min_length=1, max_length=128)
+    remark: str | None = None
+
+    @field_validator("project_code")
+    @classmethod
+    def normalize_project_code(cls, value: str) -> str:
+        return value.strip().upper()
+
+
+class CertificateOut(BaseModel):
+    id: int
+    learner_id: int
+    project_code: str
+    certificate_no: str
+    certificate_name: str
+    class_name: str | None
+    course_name: str | None
+    stage_name: str | None
+    issue_date: date
+    issuer_name: str
+    status: str
+    pdf_status: str
+    created_at: datetime
+    updated_at: datetime
+
+    model_config = {"from_attributes": True}