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Об одном правильном подходе к HMVC (Hierarchical MVC).
== English ==
Our own HMVC. Each controller has 2 methods:
* check() — always runs before trying to load the output from cache:
** handles modification requests (and redirects after applying changes),
** validates parameters, redirects to handsome URLs
** calculates cache key
** also it MAY calculate cache tags and do subrequests if it wants to
* run() — runs only on cache miss:
** calculates output HTML
** MAY calculate cache tags and do subrequests if check() does not want to :-)
Request workflow:
# Create main controller
# Create layout controller
# Starting with the main controller:
## Call check()
## Try to load output from cache
## If loaded and valid, and if check() did not call subrequest() — load subrequest records from cached output
## If not loaded:
### If check() calculated some cache tags — do NOT reset them
### Call run()
### Save output, tags and subrequest records to cache
## Do (3) with all subrequest controllers
## Replace placeholders in output with subrequest outputs
# Do (3) with the layout controller
# Calculate Last-Modified from cache tags of all controllers
# Compare Last-Modified with the requested If-Modified-Since and send HTTP 304 if not modified
# Send generated output normally
[[Category:Разработка]]
== English ==
Our own HMVC. Each controller has 2 methods:
* check() — always runs before trying to load the output from cache:
** handles modification requests (and redirects after applying changes),
** validates parameters, redirects to handsome URLs
** calculates cache key
** also it MAY calculate cache tags and do subrequests if it wants to
* run() — runs only on cache miss:
** calculates output HTML
** MAY calculate cache tags and do subrequests if check() does not want to :-)
Request workflow:
# Create main controller
# Create layout controller
# Starting with the main controller:
## Call check()
## Try to load output from cache
## If loaded and valid, and if check() did not call subrequest() — load subrequest records from cached output
## If not loaded:
### If check() calculated some cache tags — do NOT reset them
### Call run()
### Save output, tags and subrequest records to cache
## Do (3) with all subrequest controllers
## Replace placeholders in output with subrequest outputs
# Do (3) with the layout controller
# Calculate Last-Modified from cache tags of all controllers
# Compare Last-Modified with the requested If-Modified-Since and send HTTP 304 if not modified
# Send generated output normally
[[Category:Разработка]]
