Fix dfi library issue to export a dataframe as an image

.github/workflows/docs.yml

@@ -57,6 +57,7 @@ jobs:
         run: |
           find docs/streamlit_report/sections -type f -name "*.py" -exec sed -i 's|/home/runner/work/vuegen/vuegen/docs/||g' {} +
       - name: Publish Streamlit report to streamlit-example branch
+        if: startsWith(github.ref, 'refs/tags')
         uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}

src/vuegen/quarto_reportview.py

@@ -773,7 +773,7 @@ def _show_dataframe(
                 static_dir, f"{dataframe.title.replace(' ', '_')}.png"
             )
             dataframe_content.append(
-                f"dfi.export(df, '{os.path.abspath(df_image)}', max_rows=10, max_cols=5)\n```\n"
+                f"df.dfi.export('{os.path.abspath(df_image)}', max_rows=10, max_cols=5)\n```\n"
             )
             # Use helper method to add centered image content
             dataframe_content.append(self._generate_image_content(df_image))

src/vuegen/report_generator.py

@@ -1,4 +1,5 @@
 import logging
+import shutil
 
 from .config_manager import ConfigManager
 from .quarto_reportview import QuartoReportView
@@ -61,6 +62,14 @@ def get_report(
         st_report.run_report()
 
     else:
+        # Check if Quarto is installed
+        if shutil.which("quarto") is None:
+            logger.error(
+                "Quarto is not installed. Please install Quarto before generating this report type."
+            )
+            raise RuntimeError(
+                "Quarto is not installed. Please install Quarto before generating this report type."
+            )
         quarto_report = QuartoReportView(report=report, report_type=report_type)
         quarto_report.generate_report()
         quarto_report.run_report()