How could i guess the proper aliased column name then?
In your example your table is "specie" and column name is "codice", so you
used "specie_codice=42". but as i said i have joins and longer column
names, so sometimes i get like "table1.somelongcolumn AS table1_somelong_7".
On Monday, January 12, 2015 at 3:09:22 PM UTC+3:30, jo wrote:
>
> Why don't you pass the params to session.query as a dictionary into
> filter_by as in:
>
> In [1]: by_where_clause=dict(specie_codice='42',
> specie_descrizione='Nutrie')
>
> In [2]: print session.query(Specie).filter_by( **by_where_clause ).count()
>
> 2015-01-12 12:37:40,518 INFO sqlalchemy.engine.base.Engine SELECT count(*)
> AS count_1
> FROM (SELECT specie.codice AS specie_codice, specie.descrizione AS
> specie_descrizione, specie.cod_gruppo_specie AS specie_cod_gruppo_specie,
> specie.categoria_prodotto AS specie_categoria_prodotto, specie.interparto
> AS specie_interparto, specie.gestazione AS specie_gestazione,
> specie.codice_bdn AS specie_codice_bdn
> FROM specie
> WHERE specie.codice = %(codice_1)s AND specie.descrizione =
> %(descrizione_1)s) AS anon_1
> 2015-01-12 12:37:40,518 INFO sqlalchemy.engine.base.Engine {'codice_1':
> '42', 'descrizione_1': 'Nutrie'}
> 1
>
> In [3]:
>
>
> j
>
>
> On 01/12/2015 11:45 AM, Mehdi wrote:
>
> Hi
> I want to make a query with given filters received from client side.
> client side sends a json array like this:
> [
> "0DA": {conditionType: null, column: "serialNumber", operator:
> "GREATER_THAN", value: 50},
> "1DG": {conditionType: "AND", column: "name", operator: "EQUAL", value
> : "john" }
> ]
>
> I've managed to convert the json array into string query with a template
> like this:
> " {condition_type} {column} {operator} {value} "
>
> But this is only the "WHERE" clause. for complete query i use
> session.query(myModel)
> which myModel has two relationships with lazy="joined" mix with text() for
> filters:
> session.query(myModel).filter(text(sql_string))
>
> But the problem is the session.query() uses alias column names(with "AS"
> keyword) which my filter part with exact column names couln'd find those
> aliased columns.
> So Is there a way to tell session.query() use the exact column names? or i
> should change my way?
> Thanks.
>
>
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