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Last modified by Johann Werner on 2011/11/30 09:44
From version 6.1
edited by smmccraw
on 2007/07/08 09:46
Change comment: There is no comment for this version
To version 10.1
edited by Johann Werner
on 2011/11/30 09:44
Change comment: There is no comment for this version

Summary

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Title
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1 -Programming__WebObjects-Web Applications-Development-Tips and Tricks
1 +Development-Tips and Tricks
Author
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1 -XWiki.smmccraw
1 +XWiki.jw
Content
... ... @@ -1,81 +1,76 @@
1 -== URL's ==
1 +== URL's ==
2 2  
3 3  * wocontext.request().uri() = the URL currently being requested
4 4  
5 5  There are several different URL's associated with your application, all of which can be retrieved from various methods on WOApplication. Here is a quick cheat sheet of them:
6 6  
7 -* WOApplication.application().baseURL() = /WebObjects
8 8  * WOApplication.application().applicationBaseURL() = /WebObjects
9 -* WOApplication.application().cgiAdaptorURL() = http:~/~/hostname/cgi-bin/WebObjects
10 -* WOApplication.application().directConnectURL() = http:~/~/hostname:port/cgi-bin/WebObjects/MyApplication.woa
8 +* WOApplication.application().baseURL() = /WebObjects
9 +* WOApplication.application().cgiAdaptorURL() = [[http:~~/~~/hostname/cgi-bin/WebObjects>>url:http://hostname/cgi-bin/WebObjects||shape="rect"]]
10 +* WOApplication.application().directConnectURL() = [[http:~~/~~/hostname:port/cgi-bin/WebObjects/MyApplication.woa>>url:http://hostname:port/cgi-bin/WebObjects/MyApplication.woa||shape="rect"]]
11 11  * WOApplication.application().frameworksBaseURL() = /WebObjects/Frameworks
12 -* WOApplication.application().servletConnectURL() = http:~/~/hostname/cgi-bin/WebObjects/MyApplication.woa
13 -* WOApplication.application().webserverConnectURL() = http:~/~/hostname/cgi-bin/WebObjects/MyApplication.woa/-port
12 +* WOApplication.application().host() = hostname
13 +* WOApplication.application().servletConnectURL() = [[http:~~/~~/hostname/cgi-bin/WebObjects/MyApplication.woa>>url:http://hostname/cgi-bin/WebObjects/MyApplication.woa||shape="rect"]]
14 +* WOApplication.application().webserverConnectURL() = [[http:~~/~~/hostname/cgi-bin/WebObjects/MyApplication.woa/-port>>url:http://hostname/cgi-bin/WebObjects/MyApplication.woa/-port||shape="rect"]]
14 14  
15 -== Browser IP ==
16 +== Browser IP ==
16 16  
17 -{{panel}}
18 +{{code}}
18 18  
19 - /** Returns the IP address of the client.
20 - * This should return accurate information whether in direct connect or webserver deployment mode.
21 - * If performance caching is turned on on OS X server, this method will correctly use pc-remote-addr
22 - * @return The IP address as a string.
23 - */
24 - public static String clientIP(WORequest request) {
25 - Object ipAddress = request.headerForKey("pc-remote-addr");
26 - if (ipAddress == null) {
27 - ipAddress = request.headerForKey("remote_addr");
28 - if( ipAddress == null ) {
29 - ipAddress = request.headerForKey("remote_host");
30 - if( ipAddress == null ) {
31 - ipAddress = request._remoteAddress();
32 - if( ipAddress == null ) {
33 - ipAddress = request._originatingAddress();
34 - if( ipAddress != null ) ipAddress = ((InetAddress)ipAddress).getHostAddress();
35 - }
36 - }
37 - }
38 - }
39 - return ipAddress == null ? "<address unknown>" : ipAddress.toString();
40 - }
20 +/** Returns the IP address of the client.
21 + * This should return accurate information whether in direct connect or webserver deployment mode.
22 + * If performance caching is turned on on OS X server, this method will correctly use pc-remote-addr
23 + * @return The IP address as a string.
24 + */
25 + public static String clientIP(WORequest request) {
26 + Object ipAddress = request.headerForKey("pc-remote-addr");
27 + if (ipAddress == null) {
28 + ipAddress = request.headerForKey("remote_addr");
29 + if( ipAddress == null ) {
30 + ipAddress = request.headerForKey("remote_host");
31 + if( ipAddress == null ) {
32 + ipAddress = request._remoteAddress();
33 + if( ipAddress == null ) {
34 + ipAddress = request._originatingAddress();
35 + if( ipAddress != null ) ipAddress = ((InetAddress)ipAddress).getHostAddress();
36 + }
37 + }
38 + }
39 + }
40 + return ipAddress == null ? "<address unknown>" : ipAddress.toString();
41 + }
41 41  
42 -{{/panel}}
43 +{{/code}}
43 43  
44 -== NSArray ==
45 +== NSArray ==
45 45  
46 46  It's in the docs, but NSArray's implementation of KeyValueCoding is not really what I was expecting. To get an object at a specific numeric index of an NSArray, you'd use the
47 47  
48 48  {{panel}}
49 -
50 - objectAtIndex()
51 -
50 +objectAtIndex()
52 52  {{/panel}}
53 53  
54 54  method. So what does
55 55  
56 56  {{panel}}
57 -
58 - NSArray.valueForKey(String key)
59 -
56 +NSArray.valueForKey(String key)
60 60  {{/panel}}
61 61  
62 62  return?
63 63  
64 -Well, first read the docs: file:~/~//OSX/Developer/Documentation/WebObjects/Reference/com/webobjects/foundation/NSArray.html#valueForKey(java.lang.String)
61 +Well, first read the docs: [[file:~~/~~//OSX/Developer/Documentation/WebObjects/Reference/com/webobjects/foundation/NSArray.html#valueForKey(java.lang.String>>url:file:///OSX/Developer/Documentation/WebObjects/Reference/com/webobjects/foundation/NSArray.html#valueForKey(java.lang.String||shape="rect"]])
65 65  
66 66  It turns out that calling valueForKey on an array is the same as calling valueForKey for each element of that array. So if you have an NSArray of Users, calling valueForKey("email"); will return an NSArray of email addresses. calling valueForKey("documents"); will return an NSArray of NSArrays containing document objects. In hindsight (and from looking at the way WOBuilder handles key paths for arrays) this is kind of obvious. But I think the real lesson here is that it is easy to ignore the docs towards the end of an alphabetical page...
67 67  
68 -== HTML-friendly String Truncating ==
65 +== HTML-friendly String Truncating ==
69 69  
70 -{{panel}}
67 +{{code}}
71 71  
72 - import org.apache.commons.lang.*; //From Apache
73 - import org.clapper.util.text.*; // From http://www.clapper.org/
74 -
75 - public static String stripHTMLTagsAndConcatenate(String htmlString, int numberOfChar) {
76 - return (StringUtils.substringBeforeLast(StringUtils.abbreviate((HTMLUtil.stripHTMLTags(htmlString)), numberOfChar), " ")) + "...";
77 - }
69 +import org.apache.commons.lang.*; //From Apache
70 + import org.clapper.util.text.*; // From http://www.clapper.org/
78 78  
79 -{{/panel}}
72 + public static String stripHTMLTagsAndConcatenate(String htmlString, int numberOfChar) {
73 + return (StringUtils.substringBeforeLast(StringUtils.abbreviate((HTMLUtil.stripHTMLTags(htmlString)), numberOfChar), " ")) + "...";
74 + }
80 80  
81 -Category:WebObjects
76 +{{/code}}