Passing data to a member functions that use a function
I have a cfc that is a service. It only has functions. Up until now did not have any member variables.
login.cfc
function post(required string email, required string password) {
...
variables.password = arguments.password; // wish I didn't have to do this
var User = entityLoad("Users", {email : arguments.email}).filter(
function(item){
return item.validatePassword(variables.password);
});
variables.password = "";
...
I don't like that I have to set arguments.password to variables.password just so that the function inside of .filter can see it. Isn't there a cleaner way to do this?
coldfusion cfml member-functions cfc coldfusion-2018
asked Nov 21 at 2:57
James A Mohler
7,098123252
add a comment |
I have a cfc that is a service. It only has functions. Up until now did not have any member variables.
login.cfc
function post(required string email, required string password) {
...
variables.password = arguments.password; // wish I didn't have to do this
var User = entityLoad("Users", {email : arguments.email}).filter(
function(item){
return item.validatePassword(variables.password);
});
variables.password = "";
...
I don't like that I have to set arguments.password to variables.password just so that the function inside of .filter can see it. Isn't there a cleaner way to do this?
coldfusion cfml member-functions cfc coldfusion-2018
asked Nov 21 at 2:57
James A Mohler
7,098123252
add a comment |
I have a cfc that is a service. It only has functions. Up until now did not have any member variables.
login.cfc
function post(required string email, required string password) {
...
variables.password = arguments.password; // wish I didn't have to do this
var User = entityLoad("Users", {email : arguments.email}).filter(
function(item){
return item.validatePassword(variables.password);
});
variables.password = "";
...
I don't like that I have to set arguments.password to variables.password just so that the function inside of .filter can see it. Isn't there a cleaner way to do this?
coldfusion cfml member-functions cfc coldfusion-2018
asked Nov 21 at 2:57
James A Mohler
7,098123252
I have a cfc that is a service. It only has functions. Up until now did not have any member variables.
login.cfc
function post(required string email, required string password) {
...
variables.password = arguments.password; // wish I didn't have to do this
var User = entityLoad("Users", {email : arguments.email}).filter(
function(item){
return item.validatePassword(variables.password);
});
variables.password = "";
...
I don't like that I have to set arguments.password to variables.password just so that the function inside of .filter can see it. Isn't there a cleaner way to do this?
coldfusion cfml member-functions cfc coldfusion-2018
coldfusion cfml member-functions cfc coldfusion-2018
asked Nov 21 at 2:57
James A Mohler
7,098123252
asked Nov 21 at 2:57
James A Mohler
7,098123252
edited Nov 21 at 17:17
asked Nov 21 at 2:57
James A Mohler
7,098123252
asked Nov 21 at 2:57
James A Mohler
7,098123252
asked Nov 21 at 2:57
James A Mohler
7,098123252
7,098123252
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
In CF11 and newer, including Lucee 4/5, CFML closures can access variables in the parent scope (and up the stack). CF10 seems to have problems with this... but here's the code you can run in https://trycf.com to see how it works on each version of ColdFusion:
<cfscript>
function doFilter(term) {
var superheroes=[
{"name":"Iron Man","member":"Avengers"},
{"name":"Wonder Woman","member":"Justice League"},
{"name":"Hulk","member":"Avengers"},
{"name":"Thor","member":"Avengers"},
{"name":"Aquaman","member":"Justice League"}
];
var filtered=superheroes.filter(function(item){
return item.member==term;
});
writeDump(filtered);
}
doFilter("Avengers");
</cfscript>
So, in other words, you should have access to the arguments in the post() method if you're using CF11 or newer, or Lucee.
answered Nov 21 at 5:01
Redtopia
2,03053156
In your sample codefilterTermwould have the same scope asvariables.filterTermwouldn't it?
– James A Mohler
Nov 21 at 5:29
No, because thevariables scopeis global to your component, and thelocal scopeis limited to the method where it's defined. Usevar myLocalVar = "something";to define a local variable inside a function, or you can also just name itlocal.myLocalVar = "something";
– Redtopia
Nov 21 at 6:45
1
To clarify and provide a better test, I wrapped the original code example into a function. Note how I'm not using the scope name when referencing the argumentterm. This is because if you writearguments.term, you would be referencing the argument scope of the closure function.
– Redtopia
Nov 21 at 6:51
add a comment |
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1 Answer
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active
oldest
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1 Answer
1
active
oldest
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oldest
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active
oldest
votes
In CF11 and newer, including Lucee 4/5, CFML closures can access variables in the parent scope (and up the stack). CF10 seems to have problems with this... but here's the code you can run in https://trycf.com to see how it works on each version of ColdFusion:
<cfscript>
function doFilter(term) {
var superheroes=[
{"name":"Iron Man","member":"Avengers"},
{"name":"Wonder Woman","member":"Justice League"},
{"name":"Hulk","member":"Avengers"},
{"name":"Thor","member":"Avengers"},
{"name":"Aquaman","member":"Justice League"}
];
var filtered=superheroes.filter(function(item){
return item.member==term;
});
writeDump(filtered);
}
doFilter("Avengers");
</cfscript>
So, in other words, you should have access to the arguments in the post() method if you're using CF11 or newer, or Lucee.
answered Nov 21 at 5:01
Redtopia
2,03053156
In your sample codefilterTermwould have the same scope asvariables.filterTermwouldn't it?
– James A Mohler
Nov 21 at 5:29
No, because thevariables scopeis global to your component, and thelocal scopeis limited to the method where it's defined. Usevar myLocalVar = "something";to define a local variable inside a function, or you can also just name itlocal.myLocalVar = "something";
– Redtopia
Nov 21 at 6:45
1
To clarify and provide a better test, I wrapped the original code example into a function. Note how I'm not using the scope name when referencing the argumentterm. This is because if you writearguments.term, you would be referencing the argument scope of the closure function.
– Redtopia
Nov 21 at 6:51
add a comment |
In CF11 and newer, including Lucee 4/5, CFML closures can access variables in the parent scope (and up the stack). CF10 seems to have problems with this... but here's the code you can run in https://trycf.com to see how it works on each version of ColdFusion:
<cfscript>
function doFilter(term) {
var superheroes=[
{"name":"Iron Man","member":"Avengers"},
{"name":"Wonder Woman","member":"Justice League"},
{"name":"Hulk","member":"Avengers"},
{"name":"Thor","member":"Avengers"},
{"name":"Aquaman","member":"Justice League"}
];
var filtered=superheroes.filter(function(item){
return item.member==term;
});
writeDump(filtered);
}
doFilter("Avengers");
</cfscript>
So, in other words, you should have access to the arguments in the post() method if you're using CF11 or newer, or Lucee.
answered Nov 21 at 5:01
Redtopia
2,03053156
In your sample codefilterTermwould have the same scope asvariables.filterTermwouldn't it?
– James A Mohler
Nov 21 at 5:29
No, because thevariables scopeis global to your component, and thelocal scopeis limited to the method where it's defined. Usevar myLocalVar = "something";to define a local variable inside a function, or you can also just name itlocal.myLocalVar = "something";
– Redtopia
Nov 21 at 6:45
1
To clarify and provide a better test, I wrapped the original code example into a function. Note how I'm not using the scope name when referencing the argumentterm. This is because if you writearguments.term, you would be referencing the argument scope of the closure function.
– Redtopia
Nov 21 at 6:51
add a comment |
In CF11 and newer, including Lucee 4/5, CFML closures can access variables in the parent scope (and up the stack). CF10 seems to have problems with this... but here's the code you can run in https://trycf.com to see how it works on each version of ColdFusion:
<cfscript>
function doFilter(term) {
var superheroes=[
{"name":"Iron Man","member":"Avengers"},
{"name":"Wonder Woman","member":"Justice League"},
{"name":"Hulk","member":"Avengers"},
{"name":"Thor","member":"Avengers"},
{"name":"Aquaman","member":"Justice League"}
];
var filtered=superheroes.filter(function(item){
return item.member==term;
});
writeDump(filtered);
}
doFilter("Avengers");
</cfscript>
So, in other words, you should have access to the arguments in the post() method if you're using CF11 or newer, or Lucee.
answered Nov 21 at 5:01
Redtopia
2,03053156
In CF11 and newer, including Lucee 4/5, CFML closures can access variables in the parent scope (and up the stack). CF10 seems to have problems with this... but here's the code you can run in https://trycf.com to see how it works on each version of ColdFusion:
<cfscript>
function doFilter(term) {
var superheroes=[
{"name":"Iron Man","member":"Avengers"},
{"name":"Wonder Woman","member":"Justice League"},
{"name":"Hulk","member":"Avengers"},
{"name":"Thor","member":"Avengers"},
{"name":"Aquaman","member":"Justice League"}
];
var filtered=superheroes.filter(function(item){
return item.member==term;
});
writeDump(filtered);
}
doFilter("Avengers");
</cfscript>
So, in other words, you should have access to the arguments in the post() method if you're using CF11 or newer, or Lucee.
answered Nov 21 at 5:01
Redtopia
2,03053156
edited Nov 21 at 6:50
answered Nov 21 at 5:01
Redtopia
2,03053156
answered Nov 21 at 5:01
Redtopia
2,03053156
answered Nov 21 at 5:01
Redtopia
2,03053156
2,03053156
In your sample codefilterTermwould have the same scope asvariables.filterTermwouldn't it?
– James A Mohler
Nov 21 at 5:29
No, because thevariables scopeis global to your component, and thelocal scopeis limited to the method where it's defined. Usevar myLocalVar = "something";to define a local variable inside a function, or you can also just name itlocal.myLocalVar = "something";
– Redtopia
Nov 21 at 6:45
1
To clarify and provide a better test, I wrapped the original code example into a function. Note how I'm not using the scope name when referencing the argumentterm. This is because if you writearguments.term, you would be referencing the argument scope of the closure function.
– Redtopia
Nov 21 at 6:51
add a comment |
In your sample codefilterTermwould have the same scope asvariables.filterTermwouldn't it?
– James A Mohler
Nov 21 at 5:29
No, because thevariables scopeis global to your component, and thelocal scopeis limited to the method where it's defined. Usevar myLocalVar = "something";to define a local variable inside a function, or you can also just name itlocal.myLocalVar = "something";
– Redtopia
Nov 21 at 6:45
1
To clarify and provide a better test, I wrapped the original code example into a function. Note how I'm not using the scope name when referencing the argumentterm. This is because if you writearguments.term, you would be referencing the argument scope of the closure function.
– Redtopia
Nov 21 at 6:51
In your sample code
filterTerm would have the same scope as variables.filterTerm wouldn't it?– James A Mohler
Nov 21 at 5:29
In your sample code
filterTerm would have the same scope as variables.filterTerm wouldn't it?– James A Mohler
Nov 21 at 5:29
No, because the
variables scope is global to your component, and the local scope is limited to the method where it's defined. Use var myLocalVar = "something"; to define a local variable inside a function, or you can also just name it local.myLocalVar = "something";– Redtopia
Nov 21 at 6:45
No, because the
variables scope is global to your component, and the local scope is limited to the method where it's defined. Use var myLocalVar = "something"; to define a local variable inside a function, or you can also just name it local.myLocalVar = "something";– Redtopia
Nov 21 at 6:45
1
1
To clarify and provide a better test, I wrapped the original code example into a function. Note how I'm not using the scope name when referencing the argument
term. This is because if you write arguments.term, you would be referencing the argument scope of the closure function.– Redtopia
Nov 21 at 6:51
To clarify and provide a better test, I wrapped the original code example into a function. Note how I'm not using the scope name when referencing the argument
term. This is because if you write arguments.term, you would be referencing the argument scope of the closure function.– Redtopia
Nov 21 at 6:51
add a comment |
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