[web2py] Re: Chain/Multiple condition on select
Yes, thanks, you'r right. With you'r method, it's simple ;) And you can make AND condition : query &= db.mytable.tag == tag OR condition : query |= db.mytable.tag == tag It's exactly what i'm seeking! You'r solution, and Bruno's one, are perfect, I hope that can help someone else, Have a nice day! On 11 fév, 00:23, Anthony wrote: > On Friday, February 10, 2012 6:19:09 PM UTC-5, gbs wrote: > > > I have try the solution of anthony, but i don't have the skill in > > python to success.. > > (some error with 'Rows' object has no attribute 'select', etc ;) > > Once the query has been built, this should work: > > rows = db(query).select() > > Anthony
[web2py] Re: Chain/Multiple condition on select
On Friday, February 10, 2012 6:19:09 PM UTC-5, gbs wrote: > > I have try the solution of anthony, but i don't have the skill in > python to success.. > (some error with 'Rows' object has no attribute 'select', etc ;) > Once the query has been built, this should work: rows = db(query).select() Anthony
[web2py] Re: Chain/Multiple condition on select
I have try the solution of anthony, but i don't have the skill in python to success.. (some error with 'Rows' object has no attribute 'select', etc ;) But it's my fault, Thanks again On 10 fév, 23:43, gbs wrote: > Thanks to all. > > I have test the first answer, from Bruno.. > > It's work! > > Thanks a lot, i'm searching/reading during a long time! > > I will test the others solutions, why i think they are more simple/ > comprehensible for me :$ > > Best regards > > ps : sorry for the language > > On 10 fév, 23:18, Bruno Rocha wrote: > > > > > > > > > > *queries=[]* > > > *if arg1 == "x": queries.append(db.table.field == x)* > > > *if arg2 == "y": queries.append(db.table.otherfield == y)* > > > *# many conditions here* > > > *query = reduce(lambda a,b:(a&b),queries)* > > > *db(query).select()* > > > On Fri, Feb 10, 2012 at 8:10 PM, gbs wrote: > > > Hi, > > > > i have search posts on this group, but i don't have found the solution > > > of my question :$ > > > > I have a table, wich display record of a database, nothing weird.. > > > > I have made a form, so you can "filter" the result. > > > > You can check "Tag" of the record, "Status" of the record, so on... > > > > How can i create an sql "requete/statement" : ?? > > > > sql = "" > > > -- if tag : > > > sql += "tag = xxx" > > > -- if status: > > > sql += " and status = xxx" > > > > result = db(sql).select() > > > > it's just an example, wich don't work, but i don't understand how to > > > chain condition of a query :$ > > > > Best regards > > > -- > > > Bruno Rocha > > [http://rochacbruno.com.br]
Re: [web2py] Re: Chain/Multiple condition on select
On Friday, February 10, 2012 5:35:50 PM UTC-5, Detectedstealth wrote: > > sql = db > -- if tag : > sql = sql(db.mytable.tag = "xxx") > -- if status: > sql = sql(db.mytable.status = "xxx") > > result = sql.select() Yes, that's nice too. It works because the Set object is callable, and calling it adds a new condition to its query. Anthony
[web2py] Re: Chain/Multiple condition on select
Thanks to all. I have test the first answer, from Bruno.. It's work! Thanks a lot, i'm searching/reading during a long time! I will test the others solutions, why i think they are more simple/ comprehensible for me :$ Best regards ps : sorry for the language On 10 fév, 23:18, Bruno Rocha wrote: > > *queries=[]* > > *if arg1 == "x": queries.append(db.table.field == x)* > > *if arg2 == "y": queries.append(db.table.otherfield == y)* > > *# many conditions here* > > *query = reduce(lambda a,b:(a&b),queries)* > > *db(query).select()* > > On Fri, Feb 10, 2012 at 8:10 PM, gbs wrote: > > Hi, > > > i have search posts on this group, but i don't have found the solution > > of my question :$ > > > I have a table, wich display record of a database, nothing weird.. > > > I have made a form, so you can "filter" the result. > > > You can check "Tag" of the record, "Status" of the record, so on... > > > How can i create an sql "requete/statement" : ?? > > > sql = "" > > -- if tag : > > sql += "tag = xxx" > > -- if status: > > sql += " and status = xxx" > > > result = db(sql).select() > > > it's just an example, wich don't work, but i don't understand how to > > chain condition of a query :$ > > > Best regards > > -- > > Bruno Rocha > [http://rochacbruno.com.br]
Re: [web2py] Re: Chain/Multiple condition on select
sql = db -- if tag : sql = sql(db.mytable.tag = "xxx") -- if status: sql = sql(db.mytable.status = "xxx") result = sql.select() On Fri, Feb 10, 2012 at 2:25 PM, Anthony wrote: > You could do something like: > > query = db.mytable.id > 0 > if tag: > query &= db.mytable.tag == tag > if status: > query &= db.mytable.status == status > > Anthony > > > On Friday, February 10, 2012 5:10:01 PM UTC-5, gbs wrote: >> >> Hi, >> >> i have search posts on this group, but i don't have found the solution >> of my question :$ >> >> I have a table, wich display record of a database, nothing weird.. >> >> I have made a form, so you can "filter" the result. >> >> You can check "Tag" of the record, "Status" of the record, so on... >> >> How can i create an sql "requete/statement" : ?? >> >> sql = "" >> -- if tag : >>sql += "tag = xxx" >> -- if status: >>sql += " and status = xxx" >> >> result = db(sql).select() >> >> it's just an example, wich don't work, but i don't understand how to >> chain condition of a query :$ >> >> Best regards > > -- -- Regards, Bruce Wade http://ca.linkedin.com/in/brucelwade http://www.wadecybertech.com http://www.warplydesigned.com http://www.fitnessfriendsfinder.com
[web2py] Re: Chain/Multiple condition on select
You could do something like: query = db.mytable.id > 0 if tag: query &= db.mytable.tag == tag if status: query &= db.mytable.status == status Anthony On Friday, February 10, 2012 5:10:01 PM UTC-5, gbs wrote: > > Hi, > > i have search posts on this group, but i don't have found the solution > of my question :$ > > I have a table, wich display record of a database, nothing weird.. > > I have made a form, so you can "filter" the result. > > You can check "Tag" of the record, "Status" of the record, so on... > > How can i create an sql "requete/statement" : ?? > > sql = "" > -- if tag : >sql += "tag = xxx" > -- if status: >sql += " and status = xxx" > > result = db(sql).select() > > it's just an example, wich don't work, but i don't understand how to > chain condition of a query :$ > > Best regards
[web2py] Re: Chain/Multiple condition on select
Oh? you think? Ok i will test, thanks a lot! On 10 fév, 23:18, Bruno Rocha wrote: > > *queries=[]* > > *if arg1 == "x": queries.append(db.table.field == x)* > > *if arg2 == "y": queries.append(db.table.otherfield == y)* > > *# many conditions here* > > *query = reduce(lambda a,b:(a&b),queries)* > > *db(query).select()* > > On Fri, Feb 10, 2012 at 8:10 PM, gbs wrote: > > Hi, > > > i have search posts on this group, but i don't have found the solution > > of my question :$ > > > I have a table, wich display record of a database, nothing weird.. > > > I have made a form, so you can "filter" the result. > > > You can check "Tag" of the record, "Status" of the record, so on... > > > How can i create an sql "requete/statement" : ?? > > > sql = "" > > -- if tag : > > sql += "tag = xxx" > > -- if status: > > sql += " and status = xxx" > > > result = db(sql).select() > > > it's just an example, wich don't work, but i don't understand how to > > chain condition of a query :$ > > > Best regards > > -- > > Bruno Rocha > [http://rochacbruno.com.br]
[web2py] Re: Chain/Multiple condition on select
I know that you can do : result = db((db.xxx.tag==tag) & (db.xxx.status==status)).select() But i don't know how to generate the condition, one by one... On 10 fév, 23:10, gbs wrote: > Hi, > > i have search posts on this group, but i don't have found the solution > of my question :$ > > I have a table, wich display record of a database, nothing weird.. > > I have made a form, so you can "filter" the result. > > You can check "Tag" of the record, "Status" of the record, so on... > > How can i create an sql "requete/statement" : ?? > > sql = "" > -- if tag : > sql += "tag = xxx" > -- if status: > sql += " and status = xxx" > > result = db(sql).select() > > it's just an example, wich don't work, but i don't understand how to > chain condition of a query :$ > > Best regards
