27 lines
1.4 KiB
Markdown
27 lines
1.4 KiB
Markdown
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# Request Flow
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Every application follows the same flow:
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1. Application starts from `index.php`.
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1. The application, module, and system paths are set. (`APPPATH`, `MODPATH`, and `SYSPATH`)
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2. Error reporting levels are set.
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3. Install file is loaded, if it exists.
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4. The bootstrap file, `APPPATH/bootstrap.php`, is included.
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2. Once we are in `bootstrap.php`:
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6. The [Kohana] class is loaded.
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7. [Kohana::init] is called, which sets up error handling, caching, and logging.
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8. [Kohana_Config] readers and [Kohana_Log] writers are attached.
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9. [Kohana::modules] is called to enable additional modules.
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* Module paths are added to the [cascading filesystem](files).
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* Includes each module's `init.php` file, if it exists.
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* The `init.php` file can perform additional environment setup, including adding routes.
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10. [Route::set] is called multiple times to define the [application routes](routing).
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11. [Request::instance] is called to start processing the request.
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1. Checks each route that has been set until a match is found.
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2. Creates the controller instance and passes the request to it.
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3. Calls the [Controller::before] method.
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4. Calls the controller action, which generates the request response.
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5. Calls the [Controller::after] method.
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* The above 5 steps can be repeated multiple times when using [HMVC sub-requests](requests).
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3. Application flow returns to index.php
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12. The main [Request] response is displayed
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