I am trying to understand how to create a report. In fact, I created a new module with a new model, and I am trying to print just an empty report of this new model. After I manage it, I will fill the report in step by step.

But there is something that I am doing wrong, and I would like that you corrected me. By the moment, these are the steps I think I have to do (check the names I am using, because I think the error is there).

I have to generate a folder called report. Inside it, I have to create a __init__.py file (which includes the python file of the report folder).

• Inside the folder report, I have to create a .py file, for example, print_my_model.py. The code of this file should be the following:

from report import report_sxw
import time

class print_my_model_parser(report_sxw.rml_parse):
    def __init__(self, cr, uid, name, context=None):
        super(print_my_model_parser, self).__init__(cr, uid, name, context=context)
        self.localcontext.update({
            'time': time,
        })
  
report_sxw.report_sxw('report.my_module.my_report_name', 'my.model',
                      'addons/my_module/report/name_of_rml_file.rml',
                      parser="print_my_model_parser")

• Still inside the report folder, I have to create the RML file with the name specified above, inside the .py (in this case, the name of the RML file must be name_of_the_rml_file.rml). I decided to create a test RML file, with no data, so the code inside is:

<?xml version="1.0"?>
<document filename="preview_report.pdf">
  <template title="Preview Report" author="OpenERP S.A.(sales@openerp.com)" allowSplitting="20">
    <pageTemplate id="first">
      <frame id="first" x1="57.0" y1="57.0" width="481" height="728"/>
    </pageTemplate>
  </template>
  <story>
    <para>
    </para>
  </story>
</document>

• Finally, in the main folder of my module, I have to create a XML file to declarate the reports I want to create (this way, the button Print will be generated automatically in the interface). This XML file must be included in the __openerp__.py file, and its content should be:

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <report auto="True" id="whatever_id"
        model="my.model" name="my_module.my_report_name" 
        rml="my_module/report/name_of_the_rml_file.rml"
        string="Whatever message to show in the Print button of the interface" />
    </data>
</openerp>

This is not working. I would like you to correct me, specially just above, where I declare the available reports, because I think I am doing some mistakes. In the id I can write anything I did not use earlier. In name, I think I have to write the name of my module followed by a dot and whatever name I want, but in the .py, when I pass parameters to report_sxw.report_sxw(), the first one must be exactly this name, with report. just before. Is this right? Do you see anything I am doing wrong?

I always get this error when I click the button Print and then mines (Whatever message to show in the Print button of the interface):

except_osv: (u"'str' object is not callable", (<type 'exceptions.TypeError'>, TypeError("'str' object is not callable",), <traceback object at 0x7f8c3cb2c1b8>))