On 15/06/2017 12:07 PM, sum abiut wrote:
I try to perform a division on the tuple but i am getting an error. I have added another column call Gl rate. i try to perform the division lin <td>{{a.1/a.0}}</td>but im geting an error. not sure what i am doing wrong here.

You are asking the template to perform division. There doesn't seem to be a "divide" filter.

I don't know what the experts will advise but you might have to write one yourself. https://docs.djangoproject.com/en/1.10/howto/custom-template-tags/

However, I believe the accepted wisdom is that computation in the template is more expensive than in the view. Hence I would likely do it there in ordinary Python and pass a straight result to the template.

That said, you might also consider https://pypi.python.org/pypi/django-mathfilters




<table class="table table-striped">
  <thead>
<tr>
  <th>Net Balance</th>
  <th>Post Date</th>
  <th> GL rate</th>

</thead>
</tr>
{%for a in results%}
<tr>
<td>{{a.0}}</td>
  <td>{{a.1}}</td>
<td>{{a.1/a.0}}</td>
</tr>
{%endfor%}
</table>




On Thu, Jun 15, 2017 at 8:47 AM, sum abiut <[email protected] <mailto:[email protected]>> wrote:

    Thanks heaps. appreciate your help, pointing me to right direction.




    On Thu, Jun 15, 2017 at 5:28 AM, ludovic coues <[email protected]
    <mailto:[email protected]>> wrote:

        <table class="table table-striped">
        <thead>
        <tr>
        <th>Net Balance</th>
        <th>Post Date</th>
        </thead>
        </tr>
        {%for a in results%}
        <tr>
        <td>{{a.0}}</td>
        <td>{{a.1}}</td>
        </tr>
        {%endfor%}
        </table>

        `{{results|pprint}}` is pretty clear. You have a list of
        tuple. Tuples have no named member so a.nat_balance return a
        None value.
        {{ a.0 }} in your django template is the equivalent of a[0] in
        python.

        If you want dict-like object, your problem is with SQLalchemy,
        not django

        2017-06-14 5:16 GMT+02:00 sum abiut <[email protected]
        <mailto:[email protected]>>:

            Yes,
            on the database it spelt nat_balance


            On Wed, Jun 14, 2017 at 9:16 AM, Simon McConnell
            <[email protected]
            <mailto:[email protected]>> wrote:

                <td>{{a.nat_balance}}</td>

                sure it shouldn't be spelt

                <td>{{a.net_balance}}</td>

                ?

                On Wednesday, 14 June 2017 06:57:30 UTC+10, suabiut
                wrote:

                    Hi ludovic,
                    Thanks for your response.
                    when i did what you say it print out the date and
                    sum in an array. Date still in Julian date but i
                    don't worry about the date now just want to have
                    the sum display nicely in my template

                    [(733011, 28397.54), (733030, 5136.79), (733044,
                    35.89), (733048, 0.0), (733049, 0.0), (733077,
                    6313.83), (733084, 6370.96), (733091, 150.0),
                    (733104, -500.0), (733107, 0.0), (733108, 500.0),
                    (733133, 5967.62), (733154, 7054.0), (733164,
                    0.0), (733174, 5698.18), (733195, 0.0), (733212,
                    5469.15), (733224, 0.0), (733255, 4887.2),
                    (733265, -70000.0), (733286, 0.0), (733316, 0.0),
                    (733342, -119.78999999999999), (733349, 0.0),
                    (733377, 0.0), (733409, 0.0), (733422, -241.0),
                    (733426, 241.0), (733440, 0.0), (733468, 0.0),
                    (733498, 0.0), (733531, 0.0), (733559, 0.0),
                    (733582, 104.59), (733589, 0.0), (733622, 0.0),
                    (733651, 0.0), (733671, 3315.0), (733681, 0.0),
                    (733713, 0.0), (733742, 0.0), (733772, -83.89),
                    (733776, 0.0), (733777, 0.0), (733804, 0.0),
                    (733832, 0.0), (733863, 0.0), (733895, 0.0),
                    (733924, 0.0), (733948, 4.33), (733954, 0.0),
                    (733986, 0.0), (734016, 0.0), (734046, 0.0),
                    (734053, 0.0), (734077, 0.0), (734107, 0.0),
                    (734137, -35.65), (734169, 0.0), (734197, 0.0),
                    (734228, 0.0), (734260, 0.0), (734289, 0.0),
                    (734319, 0.0), (734350, 0.0), (734381, 0.0),
                    (734413, 0.0), (734442, 0.0), (734472, 0.0),
                    (734501, -31.380000000000003), (734505, 0.0),
                    (734534, 0.0), (734563, 0.0), (734595, 0.0),
                    (734625, 0.0), (734655, 0.0), (734686, 0.0),
                    (734716, 0.0), (734749, 0.0), (734777, 0.0),
                    (734808, 0.0), (734840, 0.0), (734868, 0.0),
                    (734900, 0.0), (734931, 0.0), (734960, 0.0),
                    (734990, 3455.0), (735022, 1030.0), (735050,
                    -2099.0), (735081, 460.0), (735113, -102.0),
                    (735142, -980.0), (735173, 1538.9), (735204,
                    920.0), (735231, -500.0), (735233, 0.0), (735267,
                    -1000.0), (735295, -1150.0), (735325, -250.0),
                    (735355, 0.0), (735386, -560.69), (735415, 570.0),
                    (735446, 0.0), (735477, -300.0), (735507,
                    -205.70999999999998), (735540, 1600.0), (735569,
                    -1040.0), (735598, -1404.31), (735614, 8.62),
                    (735631, 0.0), (735649, 0.0), (735659, 0.0),
                    (735689, 5.0), (735722, 0.0), (735750, 135.0),
                    (735780, 770.0), (735813, 265.0), (735842,
                    -1165.0), (735872, 30.0), (735904, -55.0),
                    (735933, 4.29), (735967, 1105.0), (735968, 0.0),
                    (735990, 4.32), (735995, 0.0), (736024, 0.0),
                    (736055, 0.0), (736087, -1000.0), (736116, 0.0),
                    (736146, 0.0), (736178, 0.0), (736208, 185.0),
                    (736240, -285.68), (736269, 0.0), (736299, 0.0),
                    (736332, 44.32), (736361, 0.0), (736389, 0.0),
                    (736422, 0.0), (736451, -40.0), (736481, 0.0)]


                    On Tue, Jun 13, 2017 at 5:33 PM, ludovic coues
                    <[email protected]> wrote:

                        Try `{{ results | pprint }}` in your template.

                        That will not solve your problems but that
                        will give you a lot more information about
                        what data have been passed to your template.

                        On 13 Jun 2017 6:53 am, "sum abiut"
                        <[email protected]> wrote:

                            Hi,
                            I need some help, i am using Django as my
                            web framework and sqlalchemy to query my
                            database. When i pass data template its
                            not showing on the template. can someone
                            point me to the right direction.

                            The post date is loaded on the template
                            but the Net Balance is not loaded. Don't
                            know what i am doing wrong here.

                            below is my view.py and template


                            view.py

                            def SUMCORP(request):
                            
engine=create_engine('mssql+pymssql://username:pass@servername
                            /RBVData')
                            connection=engine.connect()
                            metadata=MetaData()
                            
fund=Table('gltrxdet',metadata,autoload=True,autoload_with=engine)
                            
stmt=select([fund.columns.date_posted,func.sum(fund.columns.nat_balance)])
                                stmt =
                            stmt.where(fund.columns.account_code=='002CORP')
                            stmt=stmt.group_by(fund.columns.date_posted)
                            results=connection.execute(stmt).fetchall()
                                return
                            render_to_response('fundmanager_sum.html',locals())


                            template.html

                            <table class="table table-striped">
                            <thead>
                            <tr>

                            <th>Net Balance</th>
                            <th>Post Date</th>
                            </thead>

                            </tr>
                            {%for a in results%}

                            <tr>

                            <td>{{a.nat_balance}}</td>
                            <td>{{a.date_posted}}</td>

                              </tr>

                            {%endfor%}
                            </table>
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--
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        +33 6 14 87 43 42 <tel:+33%206%2014%2087%2043%2042>
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