Add report output format for pdf from odt for issue42 thanks to htgoebel

trytond/ir/action.py

@@ -168,6 +168,17 @@ class ActionKeyword(OSV):
 ActionKeyword()
 
 
+class ActionReportOutputFormat(OSV):
+    "Output formats for reports"
+    _name = 'ir.action.report.outputformat'
+    _description = "Report Output Format"
+    format = fields.char('Internal Format Name', required=True,
+            readonly=True, help="Used as file extension, too.")
+    name = fields.char('Name', required=True, translate=True)
+
+ActionReportOutputFormat()
+
+
 class ActionReport(OSV):
     "Action report"
     _name = 'ir.action.report'
@@ -187,6 +198,8 @@ class ActionReport(OSV):
     style_content = fields.Function('get_style_content',
             type='binary', string='Style')
     direct_print = fields.Boolean('Direct Print')
+    output_format = fields.Many2One('ir.action.report.outputformat',
+            'Output format', required=True)
 
     def __init__(self):
         super(ActionReport, self).__init__()
@@ -204,6 +217,16 @@ class ActionReport(OSV):
     def default_direct_print(self, cursor, user, context=None):
         return False
 
+    def default_output_format(self, cursor, user, context=None):
+        format_obj = self.pool.get(ActionReportOutputFormat._name)
+        formats = format_obj.search(cursor, user, [
+            ('format', '=', 'odt'),
+            ], limit=1, context=context)
+        if formats:
+            return format_obj.name_get(cursor, user, formats[0],
+                    context=context)[0]
+        return False
+
     def get_report_content(self, cursor, user, ids, name, arg, context=None):
         res = {}
         for report in self.browse(cursor, user, ids, context=context):

trytond/ir/action.xml

@@ -59,6 +59,7 @@
         </record>
         <menuitem parent="menu_action"
             action="act_action_form" id="menu_act_action"/>
+
         <record model="ir.ui.view" id="action_report_view_form">
             <field name="model">ir.action.report</field>
             <field name="type">form</field>
@@ -75,6 +76,8 @@
                     <field name="report"/>
                     <label name="report_content"/>
                     <field name="report_content" colspan="3"/>
+                    <label name="output_format"/>
+                    <field name="output_format" widget="selection"/>
                     <label name="style"/>
                     <field name="style"/>
                     <label name="direct_print"/>
@@ -130,6 +133,19 @@
         </record>
         <menuitem parent="menu_action"
             action="act_action_report_form" id="menu_action_report_form"/>
+
+        <!-- Report output formats -->
+        <record model="ir.action.report.outputformat"
+            id="action_report_outputformat_odt">
+            <field name="format">odt</field>
+            <field name="name">ODF Textdocuments (.odt)</field>
+        </record>
+        <record model="ir.action.report.outputformat"
+            id="action_report_outputformat_pdf">
+            <field name="format">pdf</field>
+            <field name="name">PDF Document</field>
+        </record>
+
         <record model="ir.ui.view" id="action_act_window_view_form">
             <field name="model">ir.action.act_window</field>
             <field name="type">form</field>

trytond/report/report.py

@@ -282,7 +282,62 @@ class Report(object):
         content_z.close()
         data = content_io.getvalue()
         content_io.close()
-        return ('odt', data)
+        output_format = report.output_format.format
+        if output_format == 'pdf':
+            data = self.convert_pdf(data)
+        return (output_format, data)
+
+
+    def convert_pdf(self, data):
+        """
+        Convert report to PDF using OpenOffice.org.
+        This requires OpenOffice.org, pyuno and openoffice-python to
+        be installed.
+        """
+        import tempfile
+        try:
+            import unohelper # installs import-hook
+            import openoffice.interact
+            import openoffice.officehelper as officehelper
+            from openoffice.streams import OutputStream
+            from com.sun.star.beans import PropertyValue
+        except ImportError, exception:
+            raise ExceptOSV('ImportError', str(exception))
+        try:
+            # connect to OOo
+            desktop = openoffice.interact.Desktop()
+        except officehelper.BootstrapException:
+            raise ExceptOSV('Error', "Can't connect to (bootstrap) OpenOffice.org")
+
+        res_data = None
+        # Create temporary file (with name) and write data there.
+        # We can not use NamedTemporaryFile here, since this would be
+        # deleted as soon as we close it to allow OOo reading.
+        #TODO use an input stream here
+        fd_odt, odt_name = tempfile.mkstemp()
+        fh_odt = os.fdopen(fd_odt, 'wb+')
+        try:
+            fh_odt.write(data)
+            del data # save memory
+            fh_odt.close()
+            doc = desktop.openFile(odt_name, hidden=False)
+            # Export as PDF
+            buffer = StringIO.StringIO()
+            out_props = (
+                PropertyValue("FilterName", 0, "writer_pdf_Export", 0),
+                PropertyValue("Overwrite", 0, True, 0),
+                PropertyValue("OutputStream", 0, OutputStream(buffer), 0),
+                )
+            doc.storeToURL("private:stream", out_props)
+            res_data = buffer.getvalue()
+            del buffer
+            doc.dispose()
+        finally:
+            fh_odt.close()
+            os.remove(odt_name)
+        if not res_data:
+            ExceptOSV('Error', 'Error converting to PDF')
+        return res_data
 
     def _parse_node(self, cursor, user, node, localcontext, context,
             node_context = None):