Changes between Initial Version and Version 1 of ajaxS3

Timestamp:

02/28/10 13:21:32 (15 years ago)

Author:

Serge Sunneach

Comment:

--

ajaxS3

@@ +1 @@
+DeveloperGuidelines DeveloperGuidelinesTips
+
+== ajaxS3 - the real world connectivity tool ==
+
+When there is too much data to download,
+or the connection is slow, 
+or the server is busy 
+or all of the above,
+
+1. the user would prefer to monitor the browser-server dialogue;
+2. the browser would need to re-submit the Ajax request again in the case of timeout.
+
+The [http://bazaar.launchpad.net/~flavour/sahana/sahanapy-trunk/annotate/head%3A/static/scripts/S3/S3.js ajaxS3] covers these needs.
+
+
+This is a transparent jQuery plugin residing in the S3.js (S3.min.js) which works transparently as a regular ajax handle,
+but behind the scenes:
+
+1. It shows the flashing message that the download is started
+2. It sets up the timeout and re-tries the request several times if the timeout is triggered
+3. It displays the status and errors in the custom StatusBar
+
+That way the user always feels and stays in control.
+
+'''How to use the ajaxS3?'''
+[[BR]]
+The standard handles have been provided: ''getS3'', ''getJSONS3'', ''postS3'', and the ''ajaxS3'' itself.[[BR]]
+
+
+getJSONS3
+{{{
+$.getJSONS3(url, callback)
+$.getJSONS3(url, callback, message)
+$.getJSONS3(url, data, callback) 
+$.getJSONS3(url, data, callback, message)
+}}} 
+ These calls will get the JSON from the URL and use the provided callback when successful.
+{{{
+#!js
+callback(theJSON_you_need, status)
+}}}
+getS3
+ It is the same as '''getJSONS3''', but now the type can be `html` or `json`
+{{{
+#!js
+$.getS3(url, callback, type)  
+$.getS3(url, callback, type, message)
+$.getS3(url, data, callback, type)
+$.getS3(url, data, callback, type, message)
+}}}
+postS3
+ The same as '''getS3''', but now the request goes through the POST tunnel:
+{{{
+#!js
+$.postS3(url, callback, type)  
+$.postS3(url, callback, type, message)
+$.postS3(url, data, callback, type)
+$.postS3(url, data, callback, type, message)
+}}}
+
+Why the ''message'' argument?[[BR]]
+The call `$.getJSONS3(url, callback)` will show status something like:
+{{{
+"getting form data..."
+"getting form data... retry 1"
+...
+}}}
+And the call `$.getJSONS3(url, callback, 'line items')` will show:
+{{{
+"getting line items..."
+"getting line items... retry 1"
+...
+}}}
+DeveloperGuidelines DeveloperGuidelinesTips