I am using the web2py slice from
http://www.web2pyslices.com/slice/show/1526/cascading-drop-down-lists-with-ajax-2.
I noticed that the second drop down is getting populated correctly on
firefox but on internet explorer, it is not working (Tested on IE9).
I verified that on IE, on changing the value, an additional select
statement is seen which seems to be causing the issue :-
IE Debug Snapshot (Before any change in selection)
IE Debug Snapshot (After change in first drop down)
Can anyone please help to resolve this on IE
*Views*
{{extend 'layout.html'}}
<form enctype="multipart/form-data" action="{{URL()}}" method="post">
<select name='category_name'
onchange="jQuery('#maker_name').empty();
ajax('maker', ['category_name'], 'maker_name');">
{{for category in categories:}}
<option value="{{=category.id}}"
{{=" selected='selected'" if
str(category.id)==request.vars.category_name else ""}}>
{{=category.Name}}
</option>
{{pass}}
</select>
<select id='maker_name' name='maker_name' >
{{for maker in makers:}}
<option value="{{=maker.id}}"
{{=XML(" selected='selected'") if
str(maker.id)==request.vars.maker_name else ""}}>
{{=maker.Name}}</option>
{{pass}}
</select>
<input type="submit" value='Submit'>
</form>
*Controller :*
def index():
print request.vars
grid = {}
if request.vars.maker_name:
query = (db.Product.Maker_ID==request.vars.maker_name)
grid =
SQLFORM.grid(query=query,csv=False,create=False,deletable=False,)
lists =
db(db.Product.Maker_ID==request.vars.maker_name).select(db.Product.ALL)
themakers =
db(db.Maker.id==request.vars.maker_name).select(db.Maker.ALL)
else:
lists = db(db.Product.Maker_ID==1).select(db.Product.ALL)
themakers = db(db.Maker.id==1).select(db.Maker.ALL)
categories = db().select(db.Category.ALL)
if request.vars.category_name:
makers =
db(db.Maker.Category_ID==request.vars.category_name).select(db.Maker.ALL)
else:
makers = db(db.Maker.Category_ID==1).select(db.Maker.ALL)
return dict(lists=lists, categories=categories, makers=makers,
themakers=themakers, grid=grid)
def maker():
makers =
db(db.Maker.Category_ID==request.vars.category_name).select(db.Maker.ALL)
result = "<select name='maker_name'>"
for maker in makers:
result += "<option value='" + str(maker.id) + "'>" + maker.Name +
"</option>"
result += "</select>"
return XML(result)
*Models :*
db.define_table('Category',
Field('Name'))
db.define_table('Maker',
Field('Name'),
Field('Category_ID', db.Category),
Field('Note', 'text'))
db.define_table('Product',
Field('Part_Number'),
Field('Maker_ID', db.Maker),
Field('List_Price', 'decimal(13,2)'),
Field('Special_Price', 'decimal(13,2)'))
db.Category.Name.requires = IS_NOT_EMPTY()
db.Maker.Name.requires = IS_NOT_EMPTY()
db.Maker.Category_ID.requires = IS_IN_DB(db, db.Category.id, '%(Name)s')
db.Product.Part_Number.requires = IS_NOT_EMPTY()
db.Product.Maker_ID.requires = IS_IN_DB(db, db.Maker.id, '%(Name)s')
if db(db.Category.id>0).count() == 0:
db.Category.insert(Name='PC')
db.Category.insert(Name='Smart Phone')
db.Maker.insert(Name='Toshiba', Category_ID=1, Note='Good Maker')
db.Maker.insert(Name='HP', Category_ID=1, Note='Good Maker')
db.Maker.insert(Name='Dell', Category_ID=1, Note='Good Maker')
db.Maker.insert(Name='Apple', Category_ID=2, Note='Good Maker')
db.Maker.insert(Name='Samsung', Category_ID=2, Note='Good Maker')
db.Product.insert(Part_Number='Toshiba Product A', Maker_ID=1,
List_Price=1000, Special_Price=500)
db.Product.insert(Part_Number='Toshiba Product B', Maker_ID=1,
List_Price=1500, Special_Price=1000)
db.Product.insert(Part_Number='Toshiba Product C', Maker_ID=1,
List_Price=2000, Special_Price=1500)
db.Product.insert(Part_Number='Toshiba Product D', Maker_ID=1,
List_Price=2500, Special_Price=2000)
db.Product.insert(Part_Number='Toshiba Product E', Maker_ID=1,
List_Price=3000, Special_Price=2500)
db.Product.insert(Part_Number='Toshiba Product F', Maker_ID=1,
List_Price=3500, Special_Price=3500)
db.Product.insert(Part_Number='HP Product A', Maker_ID=2,
List_Price=1000, Special_Price=500)
db.Product.insert(Part_Number='HP Product B', Maker_ID=2,
List_Price=1500, Special_Price=1000)
db.Product.insert(Part_Number='HP Product C', Maker_ID=2,
List_Price=2000, Special_Price=1500)
db.Product.insert(Part_Number='HP Product D', Maker_ID=2,
List_Price=2500, Special_Price=2000)
db.Product.insert(Part_Number='HP Product E', Maker_ID=2,
List_Price=3000, Special_Price=2500)
db.Product.insert(Part_Number='HP Product F', Maker_ID=2,
List_Price=3500, Special_Price=3500)
db.Product.insert(Part_Number='Dell Product A', Maker_ID=3,
List_Price=1000, Special_Price=500)
db.Product.insert(Part_Number='Dell Product B', Maker_ID=3,
List_Price=1500, Special_Price=1000)
db.Product.insert(Part_Number='Dell Product C', Maker_ID=3,
List_Price=2000, Special_Price=1500)
db.Product.insert(Part_Number='Dell Product D', Maker_ID=3,
List_Price=2500, Special_Price=2000)
db.Product.insert(Part_Number='Dell Product E', Maker_ID=3,
List_Price=3000, Special_Price=2500)
db.Product.insert(Part_Number='Dell Product F', Maker_ID=3,
List_Price=3500, Special_Price=3500)
db.Product.insert(Part_Number='Apple Product A', Maker_ID=4,
List_Price=1000, Special_Price=500)
db.Product.insert(Part_Number='Apple Product B', Maker_ID=4,
List_Price=1500, Special_Price=1000)
db.Product.insert(Part_Number='Apple Product C', Maker_ID=4,
List_Price=2000, Special_Price=1500)
db.Product.insert(Part_Number='Apple Product D', Maker_ID=4,
List_Price=2500, Special_Price=2000)
db.Product.insert(Part_Number='Apple Product E', Maker_ID=4,
List_Price=3000, Special_Price=2500)
db.Product.insert(Part_Number='Apple Product F', Maker_ID=4,
List_Price=3500, Special_Price=3500)
db.Product.insert(Part_Number='Samsung Product A', Maker_ID=5,
List_Price=1000, Special_Price=500)
db.Product.insert(Part_Number='Samsung Product B', Maker_ID=5,
List_Price=1500, Special_Price=1000)
db.Product.insert(Part_Number='Samsung Product C', Maker_ID=5,
List_Price=2000, Special_Price=1500)
db.Product.insert(Part_Number='Samsung Product D', Maker_ID=5,
List_Price=2500, Special_Price=2000)
db.Product.insert(Part_Number='Samsung Product E', Maker_ID=5,
List_Price=3000, Special_Price=2500)
db.Product.insert(Part_Number='Samsung Product F', Maker_ID=5,
List_Price=3500, Special_Price=3500)
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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