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81 lines
2.1 KiB
81 lines
2.1 KiB
<?php
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namespace App\Models;
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/**
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* Row in a data table
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*
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* @property int $id
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* @property object|\RowData $data - JSONB, always containing _id
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*/
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class Row extends BaseModel
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{
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protected $casts = [
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'data' => 'object',
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];
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protected $guarded = [];
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public $timestamps = false;
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public function getRowIdAttribute() {
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return $this->data->_id;
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}
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public function setRowIdAttribute($value) {
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$this->data->_id = $value;
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}
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/**
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* Allocate a single Global Row ID, application-unique.
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*
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* GRIDs are used to uniquely identify existing or proposed new rows,
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* and are preserved after row modifications, to ensure change proposals have
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* a clear target.
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*
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* @return int
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*/
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public static function allocateRowID()
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{
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return \DB::selectOne("SELECT nextval('global_row_id_seq') AS rid;")->rid;
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}
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/**
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* Allocate a block of Global Row IDs, application-unique.
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*
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* @see Row::allocateRowID()
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*
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* @return int[] first and last
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*/
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public static function allocateRowIDs($count)
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{
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$last = \DB::selectOne("SELECT multi_nextval('global_row_id_seq', ?) AS last_id;", [$count])->last_id;
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return [$last - $count + 1, $last];
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}
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/**
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* Allocate a single Global Column ID, application-unique.
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*
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* GCIDs are used to uniquely identify existing or proposed new columns,
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* and are preserved after column modifications, to ensure change proposals have
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* a clear target. This is the column equivalent of GRID.
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*
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* @return int
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*/
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public static function allocateColID()
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{
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return \DB::selectOne("SELECT nextval('global_column_id_seq') AS cid;")->cid;
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}
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/**
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* Allocate a block of Global Column IDs, application-unique.
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*
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* @see Row::allocateColID()
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*
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* @return int[] first and last
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*/
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public static function allocateColIDs($count)
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{
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$last = \DB::selectOne("SELECT multi_nextval('global_column_id_seq', ?) AS last_id;", [$count])->last_id;
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return [$last - $count + 1, $last];
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}
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}
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