Re: [web2py] Re: Dynamically Creating a Form
Wow, thanks! Python is pretty amazing. (I come from a largely C background.) On Monday, 31 March 2014 01:06:11 UTC-4, Anthony wrote: Yes, that will do it. form.vars (as well as request.vars and many other web2py objects) is a gluon.storage.Storage object, which is much like a dictionary and allows dictionary-like syntax for accessing items. Similar syntax works with DAL Table and Row objects. Anthony On Monday, March 31, 2014 12:49:37 AM UTC-4, mweissen wrote: Try form.vars['color'] or take a variable v v=color form.vars[v] 2014-03-31 2:32 GMT+02:00 horridohobbyist horrido...@gmail.comjavascript: : But if I create a name such as, for example, color, I'd need to access the form variable thusly: form.vars.color. Since the name was created on the fly, how can I actually say form.vars.color?? If the name was created and stored in a variable, say, x, I can't say form.vars.x. I guess I don't quite understand Python's capabilities. On Sunday, 30 March 2014 20:00:56 UTC-4, Anthony wrote: Well, you need some way to dynamically create names for your fields as well. Figure something out based on whatever you are using to construct the fields themselves. On Sunday, March 30, 2014 7:45:56 PM UTC-4, horridohobbyist wrote: Treating a form like a Python list works like a charm. However, having dynamically added SELECT fields, I don't know how to extract the form.vars for these fields. I don't know how to assign _name in a way that I can reference it after the form has been accepted. For example, elements = [] for b in a: sel = [] for c, val in a[b].iteritems(): sel.append(string.capitalize(c)+':'+str(val)) sel.sort() elements.append(TR(T(string.capitalize(b)),SELECT(sel,_ name=???))) After a form.accepts, I need to access form.vars.??? to get the field selection. But how do I know what the variable name is?? On Saturday, 29 March 2014 09:21:59 UTC-4, Tim Richardson wrote: FORMs are just HTML helpers, so you manipulate them after creating them. You can therefore just treat them like python lists, but there is functionality which may be more helpful: http://web2py.com/books/default/chapter/29/05/the- views#Server-side-DOM-and-parsing On Sunday, 30 March 2014 00:11:27 UTC+11, horridohobbyist wrote: Is there a way for me to dynamically add form elements, such as INPUT fields or SELECT fields, to a form? I'm not sure how to do this. I'd like to add these elements only under certain conditions. Thanks. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+un...@googlegroups.com javascript:. For more options, visit https://groups.google.com/d/optout. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: Dynamically Creating a Form
Treating a form like a Python list works like a charm. However, having dynamically added SELECT fields, I don't know how to extract the form.vars for these fields. I don't know how to assign _name in a way that I can reference it after the form has been accepted. For example, elements = [] for b in a: sel = [] for c, val in a[b].iteritems(): sel.append(string.capitalize(c)+':'+str(val)) sel.sort() elements.append(TR(T(string.capitalize(b)),SELECT(sel,_name=???))) After a form.accepts, I need to access form.vars.??? to get the field selection. But how do I know what the variable name is?? On Saturday, 29 March 2014 09:21:59 UTC-4, Tim Richardson wrote: FORMs are just HTML helpers, so you manipulate them after creating them. You can therefore just treat them like python lists, but there is functionality which may be more helpful: http://web2py.com/books/default/chapter/29/05/the-views#Server-side-DOM-and-parsing On Sunday, 30 March 2014 00:11:27 UTC+11, horridohobbyist wrote: Is there a way for me to dynamically add form elements, such as INPUT fields or SELECT fields, to a form? I'm not sure how to do this. I'd like to add these elements only under certain conditions. Thanks. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: Dynamically Creating a Form
Well, you need some way to dynamically create names for your fields as well. Figure something out based on whatever you are using to construct the fields themselves. On Sunday, March 30, 2014 7:45:56 PM UTC-4, horridohobbyist wrote: Treating a form like a Python list works like a charm. However, having dynamically added SELECT fields, I don't know how to extract the form.vars for these fields. I don't know how to assign _name in a way that I can reference it after the form has been accepted. For example, elements = [] for b in a: sel = [] for c, val in a[b].iteritems(): sel.append(string.capitalize(c)+':'+str(val)) sel.sort() elements.append(TR(T(string.capitalize(b)),SELECT(sel,_name=???))) After a form.accepts, I need to access form.vars.??? to get the field selection. But how do I know what the variable name is?? On Saturday, 29 March 2014 09:21:59 UTC-4, Tim Richardson wrote: FORMs are just HTML helpers, so you manipulate them after creating them. You can therefore just treat them like python lists, but there is functionality which may be more helpful: http://web2py.com/books/default/chapter/29/05/the-views#Server-side-DOM-and-parsing On Sunday, 30 March 2014 00:11:27 UTC+11, horridohobbyist wrote: Is there a way for me to dynamically add form elements, such as INPUT fields or SELECT fields, to a form? I'm not sure how to do this. I'd like to add these elements only under certain conditions. Thanks. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: Dynamically Creating a Form
But if I create a name such as, for example, color, I'd need to access the form variable thusly: form.vars.color. Since the name was created on the fly, how can I actually say form.vars.color?? If the name was created and stored in a variable, say, x, I can't say form.vars.x. I guess I don't quite understand Python's capabilities. On Sunday, 30 March 2014 20:00:56 UTC-4, Anthony wrote: Well, you need some way to dynamically create names for your fields as well. Figure something out based on whatever you are using to construct the fields themselves. On Sunday, March 30, 2014 7:45:56 PM UTC-4, horridohobbyist wrote: Treating a form like a Python list works like a charm. However, having dynamically added SELECT fields, I don't know how to extract the form.vars for these fields. I don't know how to assign _name in a way that I can reference it after the form has been accepted. For example, elements = [] for b in a: sel = [] for c, val in a[b].iteritems(): sel.append(string.capitalize(c)+':'+str(val)) sel.sort() elements.append(TR(T(string.capitalize(b)),SELECT(sel,_name=???))) After a form.accepts, I need to access form.vars.??? to get the field selection. But how do I know what the variable name is?? On Saturday, 29 March 2014 09:21:59 UTC-4, Tim Richardson wrote: FORMs are just HTML helpers, so you manipulate them after creating them. You can therefore just treat them like python lists, but there is functionality which may be more helpful: http://web2py.com/books/default/chapter/29/05/the-views#Server-side-DOM-and-parsing On Sunday, 30 March 2014 00:11:27 UTC+11, horridohobbyist wrote: Is there a way for me to dynamically add form elements, such as INPUT fields or SELECT fields, to a form? I'm not sure how to do this. I'd like to add these elements only under certain conditions. Thanks. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [web2py] Re: Dynamically Creating a Form
Try form.vars['color'] or take a variable v v=color form.vars[v] 2014-03-31 2:32 GMT+02:00 horridohobbyist horrido.hobb...@gmail.com: But if I create a name such as, for example, color, I'd need to access the form variable thusly: form.vars.color. Since the name was created on the fly, how can I actually say form.vars.color?? If the name was created and stored in a variable, say, x, I can't say form.vars.x. I guess I don't quite understand Python's capabilities. On Sunday, 30 March 2014 20:00:56 UTC-4, Anthony wrote: Well, you need some way to dynamically create names for your fields as well. Figure something out based on whatever you are using to construct the fields themselves. On Sunday, March 30, 2014 7:45:56 PM UTC-4, horridohobbyist wrote: Treating a form like a Python list works like a charm. However, having dynamically added SELECT fields, I don't know how to extract the form.vars for these fields. I don't know how to assign _name in a way that I can reference it after the form has been accepted. For example, elements = [] for b in a: sel = [] for c, val in a[b].iteritems(): sel.append(string.capitalize(c)+':'+str(val)) sel.sort() elements.append(TR(T(string.capitalize(b)),SELECT(sel,_ name=???))) After a form.accepts, I need to access form.vars.??? to get the field selection. But how do I know what the variable name is?? On Saturday, 29 March 2014 09:21:59 UTC-4, Tim Richardson wrote: FORMs are just HTML helpers, so you manipulate them after creating them. You can therefore just treat them like python lists, but there is functionality which may be more helpful: http://web2py.com/books/default/chapter/29/05/the- views#Server-side-DOM-and-parsing On Sunday, 30 March 2014 00:11:27 UTC+11, horridohobbyist wrote: Is there a way for me to dynamically add form elements, such as INPUT fields or SELECT fields, to a form? I'm not sure how to do this. I'd like to add these elements only under certain conditions. Thanks. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [web2py] Re: Dynamically Creating a Form
Yes, that will do it. form.vars (as well as request.vars and many other web2py objects) is a gluon.storage.Storage object, which is much like a dictionary and allows dictionary-like syntax for accessing items. Similar syntax works with DAL Table and Row objects. Anthony On Monday, March 31, 2014 12:49:37 AM UTC-4, mweissen wrote: Try form.vars['color'] or take a variable v v=color form.vars[v] 2014-03-31 2:32 GMT+02:00 horridohobbyist horrido.hobb...@gmail.com: But if I create a name such as, for example, color, I'd need to access the form variable thusly: form.vars.color. Since the name was created on the fly, how can I actually say form.vars.color?? If the name was created and stored in a variable, say, x, I can't say form.vars.x. I guess I don't quite understand Python's capabilities. On Sunday, 30 March 2014 20:00:56 UTC-4, Anthony wrote: Well, you need some way to dynamically create names for your fields as well. Figure something out based on whatever you are using to construct the fields themselves. On Sunday, March 30, 2014 7:45:56 PM UTC-4, horridohobbyist wrote: Treating a form like a Python list works like a charm. However, having dynamically added SELECT fields, I don't know how to extract the form.vars for these fields. I don't know how to assign _name in a way that I can reference it after the form has been accepted. For example, elements = [] for b in a: sel = [] for c, val in a[b].iteritems(): sel.append(string.capitalize(c)+':'+str(val)) sel.sort() elements.append(TR(T(string.capitalize(b)),SELECT(sel,_ name=???))) After a form.accepts, I need to access form.vars.??? to get the field selection. But how do I know what the variable name is?? On Saturday, 29 March 2014 09:21:59 UTC-4, Tim Richardson wrote: FORMs are just HTML helpers, so you manipulate them after creating them. You can therefore just treat them like python lists, but there is functionality which may be more helpful: http://web2py.com/books/default/chapter/29/05/the- views#Server-side-DOM-and-parsing On Sunday, 30 March 2014 00:11:27 UTC+11, horridohobbyist wrote: Is there a way for me to dynamically add form elements, such as INPUT fields or SELECT fields, to a form? I'm not sure how to do this. I'd like to add these elements only under certain conditions. Thanks. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: Dynamically Creating a Form
FORMs are just HTML helpers, so you manipulate them after creating them. You can therefore just treat them like python lists, but there is functionality which may be more helpful: http://web2py.com/books/default/chapter/29/05/the-views#Server-side-DOM-and-parsing On Sunday, 30 March 2014 00:11:27 UTC+11, horridohobbyist wrote: Is there a way for me to dynamically add form elements, such as INPUT fields or SELECT fields, to a form? I'm not sure how to do this. I'd like to add these elements only under certain conditions. Thanks. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
