40 lines
2.1 KiB
Markdown
40 lines
2.1 KiB
Markdown
# ramdb_db_fnc_fetch
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## Description
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Handles data chunks received from the database extension when data is too large to be returned in a single callback. This function collects all chunks of data, reassembles them in the correct order, and then passes the complete data to the handler function.
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## Syntax
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```sqf
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[_uniqueID, _function, _index, _total, _datachunk, _call, _netId] call ramdb_db_fnc_fetch
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```
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## Parameters
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| Parameter | Type | Description |
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|-------------|-----------|-------------------------------------------------------------|
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| `_uniqueID` | String | Unique identifier for this data fetch operation |
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| `_function` | String | Name of the function to call after data is assembled |
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| `_index` | Number | Current chunk index (0-based) |
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| `_total` | Number | Total number of chunks expected |
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| `_datachunk`| String | The chunk of data being received |
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| `_call` | Boolean | Whether to call the function directly (true) or spawn (false) |
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| `_netId` | String | (Optional) NetID of the player to whom the data belongs |
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## Return Value
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None. When all chunks are received, the function will:
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1. Assemble the complete data string
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2. Parse it as a simple array
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3. Call the specified handler function with the parsed data
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## Examples
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This function is typically not called directly but is triggered by the extension's callback mechanism when large datasets are retrieved.
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## Notes
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- The function stores received chunks in the global array `ramdb_db_fetch_array`
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- Chunks are sorted by their index to ensure correct assembly regardless of arrival order
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- After successful processing, the chunks for this uniqueID are removed from the array
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- This function is essential for handling large datasets that exceed the callback buffer limit
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## Related Functions
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- `ramdb_db_fnc_handler`: Receives the assembled data and routes it to the appropriate function
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- `ramdb_db_fnc_scheduler`: Manages the callback queue and triggers data fetching
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