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Last modified by Johann Werner on 2011/11/30 09:44
From version 8.1
edited by Pascal Robert
on 2007/09/03 14:47
Change comment: There is no comment for this version
To version 6.1
edited by smmccraw
on 2007/07/08 09:46
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
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1 -Web Applications-Development-Tips and Tricks
1 +Programming__WebObjects-Web Applications-Development-Tips and Tricks
Author
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1 -XWiki.probert
1 +XWiki.smmccraw
Content
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1 -== URL's ==
1 +== URL's ==
2 2  
3 3  * wocontext.request().uri() = the URL currently being requested
4 4  
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6 6  
7 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]]
9 +* WOApplication.application().cgiAdaptorURL() = http:~/~/hostname/cgi-bin/WebObjects
10 +* WOApplication.application().directConnectURL() = http:~/~/hostname:port/cgi-bin/WebObjects/MyApplication.woa
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().servletConnectURL() = http:~/~/hostname/cgi-bin/WebObjects/MyApplication.woa
13 +* WOApplication.application().webserverConnectURL() = http:~/~/hostname/cgi-bin/WebObjects/MyApplication.woa/-port
14 14  
15 -== Browser IP ==
15 +== Browser IP ==
16 16  
17 -{{code}}
17 +{{panel}}
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 - }
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 + }
41 41  
42 -{{/code}}
42 +{{/panel}}
43 43  
44 -== NSArray ==
44 +== 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 49  
50 -objectAtIndex()
50 + objectAtIndex()
51 51  
52 52  {{/panel}}
53 53  
... ... @@ -55,26 +55,27 @@
55 55  
56 56  {{panel}}
57 57  
58 -NSArray.valueForKey(String key)
58 + NSArray.valueForKey(String key)
59 59  
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]])
64 +Well, first read the docs: file:~/~//OSX/Developer/Documentation/WebObjects/Reference/com/webobjects/foundation/NSArray.html#valueForKey(java.lang.String)
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 ==
68 +== HTML-friendly String Truncating ==
69 69  
70 -{{code}}
70 +{{panel}}
71 71  
72 -import org.apache.commons.lang.*; //From Apache
73 - import org.clapper.util.text.*; // From http://www.clapper.org/
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 + }
74 74  
75 - public static String stripHTMLTagsAndConcatenate(String htmlString, int numberOfChar) {
76 - return (StringUtils.substringBeforeLast(StringUtils.abbreviate((HTMLUtil.stripHTMLTags(htmlString)), numberOfChar), " ")) + "...";
77 - }
79 +{{/panel}}
78 78  
79 -
80 -{{/code}}
81 +Category:WebObjects