Lianja 4.2 Query Picker

[barrymavin]

I've been looking at ways to provide a consistent way to query and select an item from related tables as this has been asked on numerous occasions.

In Lianja 4.2 we already have the "Custom Query Builder".

I have now combined "Miller Columns" with a browsable and searchable data grid.

The cascading lists of the "Miller Columns" and the data grid have a small "Search" icon which when clicked slides in the query builder allowing you to filter the individual columns and grid.

I'm still refining this prior to general release. It operates across desktop, web and mobile. I will document its usage in due course.

A picture says a thousand words. See below.

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The dialog button delegate.

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The "Query Picker" in operation.

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Using the Query Builder to filter records fo selection.

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[phabio]

I'm touched ... :o

another step to the best RAD!

thanks Barry!

you are welcome in Italy!

Fabio

[barrymavin]

The "Query Picker" is now fully working across desktop, web and mobile. Doc to come. This is included in 4.2Beta14.

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[phabio]

Hi Barry
it's fantastic.

in the demo, what is the fourth parameter?
Lianja.showQueryPickerPanel("Browse Orders", "myCallback()", "southwind", "order_details");

I suppose it is "what needs to be analyzed", but I do not find how it is defined.

thanks
Fabio

[barrymavin]

Hi Fabio,

I'm currently documenting it.

https://www.lianja.com/doc/index.php/QueryPicker

So read through that doc if if you have any questions let me know. I'll add some additional explanations regarding params.

[phabio]

Ok, I try to play with parameters..

[phabio]

Hi Barry, I'm tryng.. without a good results..
but I've a question:
if I need to browse only one table.. it's possible?

[phabio]

Now, I'me try with this parameters:
database=southwind&
table=products&
tabletitle=Item Details&
selectcolumn=productid&
columncount=1&
columntitles=Categories&
columns=categories,categoryid|products,productid,p roductname,categoryid={}&
columnsorderby=||&
picklist=products|productid,productname|categoryid ={}

but don't work.

[yvonne.milne]

Hi Fabio,

See the latest updates to the parameters table. The {} should be encoded: %7B%7D

Regards,

Yvonne

[phabio]

YES!

now is better..

this work


m_par = [database=southwind&table=products&tabletitle=Item Details&selectcolumn=productid&columncount=1&columntitles=Categories&columns=categories,categoryid|products,productid,c ategoryid=%7B%7D&columnsorderby=||&picklist=products|productid,productname|categoryid =%7B%7D]
Lianja.showQueryPickerPanel("Browse Items", "", "southwind", "products", m_par, 900)


2 questions:
is possible to add a column to the "Coategories?

I've try with


m_par = [database=southwind&table=products&tabletitle=Item Details&selectcolumn=productid&columncount=1&columntitles=Categories&columns=categories,categoryid<b>,categoryname</b>|products,productid,categoryid=%7B%7D&columnsorderby=||&picklist=products|productid,productname|categoryid =%7B%7D]
Lianja.showQueryPickerPanel("Browse Items", "", "southwind", "products", m_par, 900)

but not work

If I don't need to have 2 table?
It's possible to only have the products table?

[barrymavin]

No it uses miller columns above a data grid. If there are no Miller columns it’s not a Query Picker it would just be a data grid and that’s not what it’s for.

You need to adjust the columncount. You have it set to 1 but you have two columns. I will look into using one column as I can see the use of that but it’s not what Miller columns are for.

... to answer your other question, no a column is a column from a table not a grid. So you cannot have multiple columns as one column.

[phabio]

Ok...
So, in the main example, I can't have "Customer ID" and "Customer name"...
so, it's not easy to get the right customer..

[barrymavin]

Ok...
So, in the main example, I can't have "Customer ID" and "Customer name"...
so, it's not easy to get the right customer..

Ill take a look and see. I can see the use case.

[barrymavin]

Hi Fabio,

I have extended this in 4.2Beta18 so that the cascading lists can contain multiple columns which can include keyLookup() or other calculations. See screen shot below.

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[HankFay]

Wonderful!

[phabio]

Fantastic

[phabio]

m_database = "database=southwind"
m_table = "table=products"
m_tabletitle = "tabletitle=Item Details"
m_selectcolumn = "selectcolumn=productid"
m_columncount = "columncount=1"
m_columntitles = "columntitles=Categories"
m_columns = "columns=categories,categoryid:categoryname|product s,productid,categoryid=%7B%7D"
m_columnsorderby = "columnsorderby=||"
m_picklist = "picklist=products|productid,productname|categoryid =%7B%7D"

m_par = m_database + "&" + m_table + "&" + m_tabletitle + "&" + m_selectcolumn + "&" + m_columncount + "&" + m_columntitles + "&" + m_columns + "&" + m_columnsorderby + "&" + m_picklist
? m_par


Lianja.showQueryPickerPanel("Browse Items", "", "southwind", "products", m_par, 900)


this, work fine.

the only left question is:
I've try with this:
m_picklist = "picklist=products|productid,productname|1=1"
on the bottom, I see all the "Products".. great
and the search work fine
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have you see if is possible to hide the top column and show only the picklist?

one suggestion..
if I set "columncount=-1"
you show only the picklist.. and the query are performed without to click on the header grid.. :-)

[barrymavin]

Thats not what its designed to do. You filter down through related data. Its not just a searchable grid.

[phabio]

Ok..
it's planned to create a searchable grid?
thanks
Fabio

[barrymavin]

Ok..
it's planned to create a searchable grid?
thanks
Fabio

If you submit an ER it will be considered but not in 4.2 which will ship this week. It’s already a massive release.

[barrymavin]

I have enhanced the QueryPicker so now it can display a searchable grid.

Just specify showcolumns=false in your parameters.

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And the result is...

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Bear in mind that this loads the whole grid in one go so that it is free text searchable.

[phabio]

Another Brick In The Wall...

great Barry!

do you have modified only the rsp or also the ShowQueryPickerPanel?

Fabio

[barrymavin]

Hi Fabio,

It’s a WebViewWidget. All I needed to do was edit the rsp file.

[phabio]

Good, I wait the next beta to test it.

Thanks
Fabio

[phabio]

Hi,
I'm triyng to use the QueryPicker with only the picklist



open database southwind

m_database = "database=southwind"
m_table = "table=products"
m_tabletitle = "tabletitle=product"
m_selectcolumn = "selectcolumn=productid"
m_columncount = "columncount=1"
m_columntitles = "columntitles=products"
m_columns = "columns=" + "products,productid,1=1"
m_columnsorderby = "columnsorderby="
m_picklist = "picklist=products|productid|1=1"
m_showcolumns = "showcolumns=false"

m_par = m_database + "&" + m_table + ;
"&" + m_tabletitle + ;
"&" + m_selectcolumn + ;
"&" + m_columncount + ;
"&" + m_columntitles + ;
"&" + m_columnsorderby + ;
"&" + m_picklist + ;
"&" + m_showcolumns


? m_par

Lianja.showQueryPicker("Ricerca progetti", "a=1", "southwind", "Products", m_par, 800)


but I got an error and the grid is empty.

where I wrong?

thanks
Fabio

[barrymavin]

Hi Fabio,

Remove the empty parameters and then remove each parameter one by one until you identify the issue. In my example above in this thread it is working as per the screenshot.

[phabio]

Ok, I try, but in the sample you have all the tables.

[phabio]

I get everytime this error
gio nov 1 11:03:18 2018
**** Lianja error ****
odata_read([/southwind/products&$select eq productid], [_00002ef000d7.tmp])
^
Unrecognized phrase/keyword near column 52

[phabio]

Strange..
this, work: 1 column and 1 detail


m_database = "database=SFM"
m_table = "table=documenti" // la table col massimo dettaglio
m_tabletitle = "tabletitle=Documenti" // descrizione table col massimo dettaglio
m_selectcolumn = "selectcolumn=ID" // il campo della tabella selezionata
m_columncount = "columncount=1" // numero finestrelle sopra al dettaglio
m_columntitles = "columntitles=Progetti" // titoli
m_columns = "columns=" + "progetti,clienteid:id:progetto" + "|documenti,descrizione,progettoid=%7B%7D"
m_columnsorderby = "columnsorderby=progetto|stato"
m_picklist = "picklist=documenti|progettoid,id,descrizione,caso, stato|progettoid=%7B%7D"
m_showcolumns = "showcolumns=false"

m_par = m_database + "&" + m_table + ;
"&" + m_tabletitle + ;
"&" + m_selectcolumn + ;
"&" + m_columncount + ;
"&" + m_columntitles + ;
"&" + m_columns + ;
"&" + m_columnsorderby + ;
"&" + m_picklist
/*
+ ;
"&" + m_showcolumns
*/

? m_par

Lianja.showQueryPicker("Ricerca progetti", "a=1", "SFM", "Clienti", m_par, 800)


this:


m_database = "database=SFM"
m_table = "table=documenti" // la table col massimo dettaglio
m_tabletitle = "tabletitle=Documenti" // descrizione table col massimo dettaglio
m_selectcolumn = "selectcolumn=ID" // il campo della tabella selezionata
m_columncount = "columncount=1" // numero finestrelle sopra al dettaglio
m_columntitles = "columntitles=Progetti" // titoli
m_columns = "columns=" + "progetti,clienteid:id:progetto" + "|documenti,descrizione,progettoid=%7B%7D"
m_columnsorderby = "columnsorderby=progetto|stato"
m_picklist = "picklist=documenti|progettoid,id,descrizione,caso, stato|progettoid=%7B%7D"
m_showcolumns = "showcolumns=false"

m_par = m_database + "&" + m_table + ;
"&" + m_tabletitle + ;
"&" + m_selectcolumn + ;
"&" + m_columncount + ;
"&" + m_columntitles + ;
"&" + m_columns + ;
"&" + m_columnsorderby + ;
"&" + m_picklist + ;
"&" + m_showcolumns

? m_par

Lianja.showQueryPicker("Ricerca progetti", "a=1", "SFM", "Clienti", m_par, 800)


return the error
ven nov 2 17:17:59 2018
**** Lianja error ****
odata_read([/SFM/documenti&$select eq progettoid,id,descrizione,caso,stato], [_0000375803a7.tmp])
^
Unrecognized phrase/keyword near column 55

I've added only the clause:
showcolumns=false

[phabio]

also with SouthWind data:


open database southwind

m_database = "database=southwind"
m_table = "table=products"
m_tabletitle = "tabletitle=product"
m_selectcolumn = "selectcolumn=productid"
m_columncount = "columncount=1"
m_columntitles = "columntitles=products"
m_columns = "columns=" + "products,productid,productname,1=1"
m_columnsorderby = "columnsorderby="
m_picklist = "picklist=products|productid,productname|1=1"
m_showcolumns = "showcolumns=false"

m_par = m_database + "&" + m_table + ;
"&" + m_tabletitle + ;
"&" + m_columntitles + ;
"&" + m_picklist + ;
"&" + m_columncount + ;
"&" + m_showcolumns

Lianja.showQueryPicker("Ricerca progetti", "a=1", "southwind", "Products", m_par, 800)


if I remove the "m_showcolumns", work

[phabio]

Hi,
can someone post a sample of a single column querypicker on a DB different from SouthWind?
thanks
fabio