Copying from an input field to another, with a button

[Dan Campbell]

Hi,

I can't seem to get a value copied from one field, to another, triggered by a button click.  The code below copies the contents of <name> to <othername> during load, as its instructed.  But if I input a value into <name>, and then click the <btn_copynametoothername> button, nothing happens.

(The different button names don't really mean anything.  I'm just randomly trying different things, at this point).

defn ^:export init []

  ( js/alert "Testing init" )

  ( go ( let [ response ( <! (http/get "/websample" ))

              body ( :body response )

              s_name-value ( ef/from "#name" ( ef/read-form-input ))]

         ; leave this for testing later

         ; ( js/alert s_name-value )

         ( ef/at "#name" ( ef/content ( :name body )))

         

         ; copy content of name to othername 
         ; This works, as it should.

         ( ef/at "#othername" ( ef/set-prop :value s_name-value ))

         ( ef/at "#button1" ( ev/listen :click ( say-goodbye )))

         ; Execute say-whatthe, when buttonsubmit is clicked.

         ( ef/at [ :#buttonsubmit ] ( ev/listen :click ( say-whatthe )))

         ; Copy contents of name to othername

         ; Doesn't work yet 09/01/2015

         ( ef/at [ :#btn_copynametoothername ] ( ev/listen :click  

                           ( ef/at "#name" ( ef/set-prop :value ( ef/from "#othername" ( ef/read-form-input ))))))

[xavi]

I think the code in the last line is copying the value from #othername to #name, not the other way around as you say.

[Dan Campbell]

         

You're right xavi, thanks.  Unfortunately, even after reversing the function calls, it still has no effect.

         ( ef/at [ :#btn_copynametoothername ] ( ev/listen :click  

                    ( ef/at "#othername" ( ef/set-prop :value ( ef/from "#name" ( ef/read-form-input )))))) 

On Thu, Sep 3, 2015 at 3:38 AM, xavi <xavi.c...@gmail.com> wrote:

I think the code in the last line is copying the value from #othername to #name, not the other way around as you say.

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[Dan Campbell]

You're right xavi, thanks.  Unfortunately, even after reversing the function calls, it still has no effect on the button action.  It gets executed when the page is loaded, but not when the button is clicked.  

So if we throw in an alert call,

         ( ef/at [ :#btn_copynametoothername ] ( ev/listen :click  

                                                           ( do 

                                                             ( js/alert "this part works" )

                    ( ef/at "#othername" ( ef/set-prop ( ef/from "#name" ( ef/read-form-input )))))) 

         )

, the "this part works" shows up when the page is refreshed.  But the button click has no effect.

This something else I'm missing.  Something careless and dumb.

Anyway, thanks for the input, I'll try removing and adding a few things.

On Thu, Sep 3, 2015 at 3:38 AM, xavi <xavi.c...@gmail.com> wrote:

I think the code in the last line is copying the value from #othername to #name, not the other way around as you say.

[ckirkendall]

Dan,

Listen takes a funciton and you are passing the result of (at...) to it.  You need to pass #(...) or (fn [ev]..).  

Creighton

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[Dan Campbell]

You're right xavi, thanks.  Unfortunately, the othername assignment doesn't take place.  There doesn't seem to be any problem retrieving the value of name or othername, but making the assignment in the button has no effect.

So, these two will work as expected,

        ( ef/at [ :#btn_copynametoothername ] ( ev/listen :click ( do

                                                         #( js/alert ( ef/from "#name" ( ef/read-form-input ))))))

        

        ( ef/at [ :#btn_copynametoothername ] ( ev/listen :click ( do

                                                         #( js/alert ( ef/from "#othername" ( ef/read-form-input ))))))

, but this has no effect:

        ( ef/at [ :#btn_copynametoothername ] ( ev/listen :click ( do

                                                         ( ef/at "#othername" ( ef/set-prop ( ef/from "#name" ( ef/read-form-input )))))))

Even if the at/set-prop applies to a simple constant string, it won't execute.  So at/set-prop will execute upon load, in this code, but will not execute in a button event.

On Thu, Sep 3, 2015 at 3:38 AM, xavi <xavi.c...@gmail.com> wrote:

I think the code in the last line is copying the value from #othername to #name, not the other way around as you say.

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[Dan Campbell]

Ah, ok.  I'll give that a try, thanks Creighton.

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[Dan Campbell]

That's the ticket, thank you sir.