om.core/value during rendering, deref anywhere else On Wed, Sep 3, 2014 at 11:08 AM, Alan Shaw <[email protected]> wrote: > Thanks, I will do that. In the meantime it would help me if you could > describe the conditions under which saying "cursor" provides its value > rather than the cursor object? > > 2014/9/3 上午8:00 於 "David Nolen" <[email protected]> 寫道： > >> I think it will be more fruitful to describe your problem with a >> minimal bit of code completely outside the context of what you are >> working on. As it stands I cannot even see the trouble you are having. >> >> David >> >> On Wed, Sep 3, 2014 at 10:48 AM, Alan Shaw <[email protected]> wrote: >> > OK let me try this: >> > >> > (render [_] (dom/h1 nil (:text app))) >> > >> > App is a cursor but here we are happily getting the :text member of its >> > value by pretending app is the value. >> > >> > (Something something (f app)) >> > >> > App is a cursor but here I am not magically given its value. >> > >> > Discuss. >> > >> > 2014/9/3 上午7:41 於 "David Nolen" <[email protected]> 寫道： >> > >> >> Or I simply don't understand the problem or the question :) >> >> >> >> On Wed, Sep 3, 2014 at 10:30 AM, Alan Shaw <[email protected]> wrote: >> >> > Wow you simply have not taken the time to read my question. >> >> > >> >> > 2014/9/3 上午7:28 於 "David Nolen" <[email protected]> 寫道： >> >> > >> >> >> If for some reason you need to snapshot the value of a cursor during >> >> >> render use om.core/value to do that. >> >> >> >> >> >> David >> >> >> >> >> >> On Wed, Sep 3, 2014 at 10:25 AM, Alan Shaw <[email protected]> >> >> >> wrote: >> >> >> > Setting local state from app state was not my goal. My goal was to >> >> >> > reflect >> >> >> > the changed app state in the display - not an unreasonable desire. >> >> >> > If >> >> >> > you >> >> >> > read my question again you'll see that setting local state was >> >> >> > only >> >> >> > one >> >> >> > of >> >> >> > three ways I tried to accomplish that. >> >> >> > >> >> >> > Again: I was unable to access the cursor's value during the render >> >> >> > phase >> >> >> > without explicitly saying (.value cursor). Examples in the >> >> >> > tutorials >> >> >> > show >> >> >> > the cursor's value available by implicit dereferencing: >> >> >> > >> >> >> > (render [_] (dom/h1 nil (:text app))) >> >> >> > >> >> >> > It is my impression that rendering the value requires access to >> >> >> > the >> >> >> > value. >> >> >> > But when I refer to this app state in render, I get the cursor >> >> >> > rather >> >> >> > than >> >> >> > its value. >> >> >> > >> >> >> > I appreciate that breaking Om's rules will lead to trouble. I am >> >> >> > trying >> >> >> > to >> >> >> > play by the rules here but it's not clear what they are. >> >> >> > >> >> >> > -- >> >> >> > Note that posts from new members are moderated - please be patient >> >> >> > with >> >> >> > your >> >> >> > first post. >> >> >> > --- >> >> >> > You received this message because you are subscribed to the Google >> >> >> > Groups >> >> >> > "ClojureScript" group. >> >> >> > To unsubscribe from this group and stop receiving emails from it, >> >> >> > send >> >> >> > an >> >> >> > email to [email protected]. >> >> >> > To post to this group, send email to >> >> >> > [email protected]. >> >> >> > Visit this group at http://groups.google.com/group/clojurescript. >> >> >> >> >> >> -- >> >> >> Note that posts from new members are moderated - please be patient >> >> >> with >> >> >> your first post. >> >> >> --- >> >> >> You received this message because you are subscribed to the Google >> >> >> Groups >> >> >> "ClojureScript" group. >> >> >> To unsubscribe from this group and stop receiving emails from it, >> >> >> send >> >> >> an >> >> >> email to [email protected]. >> >> >> To post to this group, send email to [email protected]. >> >> >> Visit this group at http://groups.google.com/group/clojurescript. >> >> > >> >> > -- >> >> > Note that posts from new members are moderated - please be patient >> >> > with >> >> > your >> >> > first post. >> >> > --- >> >> > You received this message because you are subscribed to the Google >> >> > Groups >> >> > "ClojureScript" group. >> >> > To unsubscribe from this group and stop receiving emails from it, >> >> > send >> >> > an >> >> > email to [email protected]. >> >> > To post to this group, send email to [email protected]. >> >> > Visit this group at http://groups.google.com/group/clojurescript. >> >> >> >> -- >> >> Note that posts from new members are moderated - please be patient with >> >> your first post. >> >> --- >> >> You received this message because you are subscribed to the Google >> >> Groups >> >> "ClojureScript" group. >> >> To unsubscribe from this group and stop receiving emails from it, send >> >> an >> >> email to [email protected]. >> >> To post to this group, send email to [email protected]. >> >> Visit this group at http://groups.google.com/group/clojurescript. >> > >> > -- >> > Note that posts from new members are moderated - please be patient with >> > your >> > first post. >> > --- >> > You received this message because you are subscribed to the Google >> > Groups >> > "ClojureScript" group. >> > To unsubscribe from this group and stop receiving emails from it, send >> > an >> > email to [email protected]. >> > To post to this group, send email to [email protected]. >> > Visit this group at http://groups.google.com/group/clojurescript. >> >> -- >> Note that posts from new members are moderated - please be patient with >> your first post. >> --- >> You received this message because you are subscribed to the Google Groups >> "ClojureScript" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/clojurescript. > > -- > Note that posts from new members are moderated - please be patient with your > first post. > --- > You received this message because you are subscribed to the Google Groups > "ClojureScript" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/clojurescript.
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