[SILO-783] feat: added porters and new serializer based exporter

apps/api/plane/bgtasks/export_task.py

@@ -15,9 +15,10 @@
 from django.db.models import Prefetch
 
 # Module imports
-from plane.db.models import ExporterHistory, Issue, IssueRelation
+from plane.db.models import ExporterHistory, Issue, IssueComment, IssueRelation, IssueSubscriber
 from plane.utils.exception_logger import log_exception
-from plane.utils.exporters import Exporter, IssueExportSchema
+from plane.utils.porters.exporter import DataExporter
+from plane.utils.porters.serializers.issue import IssueExportSerializer
 
 
 def create_zip_file(files: List[tuple[str, str | bytes]]) -> io.BytesIO:
@@ -159,10 +160,16 @@ def issue_export_task(
                 "labels",
                 "issue_cycle__cycle",
                 "issue_module__module",
-                "issue_comments",
                 "assignees",
-                "issue_subscribers",
                 "issue_link",
+                Prefetch(
+                    "issue_subscribers",
+                    queryset=IssueSubscriber.objects.select_related("subscriber"),
+                ),
+                Prefetch(
+                    "issue_comments",
+                    queryset=IssueComment.objects.select_related("actor").order_by("created_at"),
+                ),
                 Prefetch(
                     "issue_relation",
                     queryset=IssueRelation.objects.select_related("related_issue", "related_issue__project"),
@@ -180,11 +187,7 @@ def issue_export_task(
 
         # Create exporter for the specified format
         try:
-            exporter = Exporter(
-                format_type=provider,
-                schema_class=IssueExportSchema,
-                options={"list_joiner": ", "},
-            )
+            exporter = DataExporter(IssueExportSerializer, format_type=provider)
         except ValueError as e:
             # Invalid format type
             exporter_instance = ExporterHistory.objects.get(token=token_id)

apps/api/plane/db/models/user.py

@@ -147,6 +147,11 @@ def cover_image_url(self):
             return self.cover_image
         return None
 
+    @property
+    def full_name(self):
+        """Return user's full name (first + last)."""
+        return f"{self.first_name} {self.last_name}".strip()
+
     def save(self, *args, **kwargs):
         self.email = self.email.lower().strip()
         self.mobile_number = self.mobile_number

apps/api/plane/utils/porters/__init__.py

@@ -0,0 +1,15 @@
+from .formatters import BaseFormatter, CSVFormatter, JSONFormatter, XLSXFormatter
+from .exporter import DataExporter
+from .serializers import IssueExportSerializer
+
+__all__ = [
+    # Formatters
+    "BaseFormatter",
+    "CSVFormatter",
+    "JSONFormatter",
+    "XLSXFormatter",
+    # Exporters
+    "DataExporter",
+    # Export Serializers
+    "IssueExportSerializer",
+]

apps/api/plane/utils/porters/exporter.py

@@ -0,0 +1,103 @@
+from typing import Dict, List, Union
+from .formatters import BaseFormatter, CSVFormatter, JSONFormatter, XLSXFormatter
+
+
+class DataExporter:
+    """
+    Export data using DRF serializers with built-in format support.
+
+    Usage:
+        # New simplified interface
+        exporter = DataExporter(BookSerializer, format_type='csv')
+        filename, content = exporter.export('books_export', queryset)
+
+        # Legacy interface (still supported)
+        exporter = DataExporter(BookSerializer)
+        csv_string = exporter.to_string(queryset, CSVFormatter())
+    """
+
+    # Available formatters
+    FORMATTERS = {
+        "csv": CSVFormatter,
+        "json": JSONFormatter,
+        "xlsx": XLSXFormatter,
+    }
+
+    def __init__(self, serializer_class, format_type: str = None, **serializer_kwargs):
+        """
+        Initialize exporter with serializer and optional format type.
+
+        Args:
+            serializer_class: DRF serializer class to use for data serialization
+            format_type: Optional format type (csv, json, xlsx). If provided, enables export() method.
+            **serializer_kwargs: Additional kwargs to pass to serializer
+        """
+        self.serializer_class = serializer_class
+        self.serializer_kwargs = serializer_kwargs
+        self.format_type = format_type
+        self.formatter = None
+
+        if format_type:
+            if format_type not in self.FORMATTERS:
+                raise ValueError(f"Unsupported format: {format_type}. Available: {list(self.FORMATTERS.keys())}")
+            # Create formatter with default options
+            self.formatter = self._create_formatter(format_type)
+
+    def _create_formatter(self, format_type: str) -> BaseFormatter:
+        """Create formatter instance with appropriate options."""
+        formatter_class = self.FORMATTERS[format_type]
+
+        # Apply format-specific options
+        if format_type == "xlsx":
+            return formatter_class(list_joiner=", ")
+        else:
+            return formatter_class()
+
+    def serialize(self, queryset) -> List[Dict]:
+        """QuerySet → list of dicts"""
+        serializer = self.serializer_class(
+            queryset,
+            many=True,
+            **self.serializer_kwargs
+        )
+        return serializer.data
+
+    def export(self, filename: str, queryset) -> tuple[str, Union[str, bytes]]:
+        """
+        Export queryset to file with configured format.
+
+        Args:
+            filename: Base filename (without extension)
+            queryset: Django QuerySet to export
+
+        Returns:
+            Tuple of (filename_with_extension, content)
+
+        Raises:
+            ValueError: If format_type was not provided during initialization
+        """
+        if not self.formatter:
+            raise ValueError("format_type must be provided during initialization to use export() method")
+
+        data = self.serialize(queryset)
+        content = self.formatter.encode(data)
+        full_filename = f"{filename}.{self.formatter.extension}"
+
+        return full_filename, content
+
+    def to_string(self, queryset, formatter: BaseFormatter) -> Union[str, bytes]:
+        """Export to formatted string (legacy interface)"""
+        data = self.serialize(queryset)
+        return formatter.encode(data)
+
+    def to_file(self, queryset, filepath: str, formatter: BaseFormatter) -> str:
+        """Export to file (legacy interface)"""
+        content = self.to_string(queryset, formatter)
+        with open(filepath, 'w', encoding='utf-8') as f:
+            f.write(content)
+        return filepath
+
+    @classmethod
+    def get_available_formats(cls) -> List[str]:
+        """Get list of available export formats."""
+        return list(cls.FORMATTERS.keys())