Added vendor/ directory for Composer's installed files

vendor/illuminate/database/Query/Grammars/SqlServerGrammar.php

@@ -0,0 +1,224 @@
+<?php namespace Illuminate\Database\Query\Grammars;
+
+use Illuminate\Database\Query\Builder;
+
+class SqlServerGrammar extends Grammar {
+
+	/**
+	 * All of the available clause operators.
+	 *
+	 * @var array
+	 */
+	protected $operators = array(
+		'=', '<', '>', '<=', '>=', '!<', '!>', '<>', '!=',
+		'like', 'not like', 'between', 'ilike',
+		'&', '&=', '|', '|=', '^', '^=',
+	);
+
+	/**
+	 * Compile a select query into SQL.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder
+	 * @return string
+	 */
+	public function compileSelect(Builder $query)
+	{
+		$components = $this->compileComponents($query);
+
+		// If an offset is present on the query, we will need to wrap the query in
+		// a big "ANSI" offset syntax block. This is very nasty compared to the
+		// other database systems but is necessary for implementing features.
+		if ($query->offset > 0)
+		{
+			return $this->compileAnsiOffset($query, $components);
+		}
+
+		return $this->concatenate($components);
+	}
+
+	/**
+	 * Compile the "select *" portion of the query.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder  $query
+	 * @param  array  $columns
+	 * @return string
+	 */
+	protected function compileColumns(Builder $query, $columns)
+	{
+		if ( ! is_null($query->aggregate)) return;
+
+		$select = $query->distinct ? 'select distinct ' : 'select ';
+
+		// If there is a limit on the query, but not an offset, we will add the top
+		// clause to the query, which serves as a "limit" type clause within the
+		// SQL Server system similar to the limit keywords available in MySQL.
+		if ($query->limit > 0 && $query->offset <= 0)
+		{
+			$select .= 'top '.$query->limit.' ';
+		}
+
+		return $select.$this->columnize($columns);
+	}
+
+	/**
+	 * Compile the "from" portion of the query.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder  $query
+	 * @param  string  $table
+	 * @return string
+	 */
+	protected function compileFrom(Builder $query, $table)
+	{
+		$from = parent::compileFrom($query, $table);
+
+		if (is_string($query->lock)) return $from.' '.$query->lock;
+
+		if ( ! is_null($query->lock))
+		{
+			return $from.' with(rowlock,'.($query->lock ? 'updlock,' : '').'holdlock)';
+		}
+
+		return $from;
+	}
+
+	/**
+	 * Create a full ANSI offset clause for the query.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder  $query
+	 * @param  array  $components
+	 * @return string
+	 */
+	protected function compileAnsiOffset(Builder $query, $components)
+	{
+		// An ORDER BY clause is required to make this offset query work, so if one does
+		// not exist we'll just create a dummy clause to trick the database and so it
+		// does not complain about the queries for not having an "order by" clause.
+		if ( ! isset($components['orders']))
+		{
+			$components['orders'] = 'order by (select 0)';
+		}
+
+		// We need to add the row number to the query so we can compare it to the offset
+		// and limit values given for the statements. So we will add an expression to
+		// the "select" that will give back the row numbers on each of the records.
+		$orderings = $components['orders'];
+
+		$components['columns'] .= $this->compileOver($orderings);
+
+		unset($components['orders']);
+
+		// Next we need to calculate the constraints that should be placed on the query
+		// to get the right offset and limit from our query but if there is no limit
+		// set we will just handle the offset only since that is all that matters.
+		$constraint = $this->compileRowConstraint($query);
+
+		$sql = $this->concatenate($components);
+
+		// We are now ready to build the final SQL query so we'll create a common table
+		// expression from the query and get the records with row numbers within our
+		// given limit and offset value that we just put on as a query constraint.
+		return $this->compileTableExpression($sql, $constraint);
+	}
+
+	/**
+	 * Compile the over statement for a table expression.
+	 *
+	 * @param  string  $orderings
+	 * @return string
+	 */
+	protected function compileOver($orderings)
+	{
+		return ", row_number() over ({$orderings}) as row_num";
+	}
+
+	/**
+	 * Compile the limit / offset row constraint for a query.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder  $query
+	 * @return string
+	 */
+	protected function compileRowConstraint($query)
+	{
+		$start = $query->offset + 1;
+
+		if ($query->limit > 0)
+		{
+			$finish = $query->offset + $query->limit;
+
+			return "between {$start} and {$finish}";
+		}
+
+		return ">= {$start}";
+	}
+
+	/**
+	 * Compile a common table expression for a query.
+	 *
+	 * @param  string  $sql
+	 * @param  string  $constraint
+	 * @return string
+	 */
+	protected function compileTableExpression($sql, $constraint)
+	{
+		return "select * from ({$sql}) as temp_table where row_num {$constraint}";
+	}
+
+	/**
+	 * Compile the "limit" portions of the query.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder  $query
+	 * @param  int  $limit
+	 * @return string
+	 */
+	protected function compileLimit(Builder $query, $limit)
+	{
+		return '';
+	}
+
+	/**
+	 * Compile the "offset" portions of the query.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder  $query
+	 * @param  int  $offset
+	 * @return string
+	 */
+	protected function compileOffset(Builder $query, $offset)
+	{
+		return '';
+	}
+
+	/**
+	 * Compile a truncate table statement into SQL.
+	 *
+	 * @param  \Illuminate\Database\Query\Builder  $query
+	 * @return array
+	 */
+	public function compileTruncate(Builder $query)
+	{
+		return array('truncate table '.$this->wrapTable($query->from) => array());
+	}
+
+	/**
+	 * Get the format for database stored dates.
+	 *
+	 * @return string
+	 */
+	public function getDateFormat()
+	{
+		return 'Y-m-d H:i:s.000';
+	}
+
+	/**
+	 * Wrap a single string in keyword identifiers.
+	 *
+	 * @param  string  $value
+	 * @return string
+	 */
+	protected function wrapValue($value)
+	{
+		if ($value === '*') return $value;
+
+		return '['.str_replace(']', ']]', $value).']';
+	}
+
+}