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<?php |
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include($this->code."stores/modules/sql_compiler.php"); |
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class postgresql_compiler extends sql_compiler { |
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protected $tbl_prefix; |
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protected $in_orderby; |
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protected $nls_join; |
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protected $select_tables; |
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protected $used_tables; |
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protected $custom_id; |
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protected $custom_ref; |
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protected $used_custom_fields; |
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protected $where_s_ext; |
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protected $where_s; |
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protected $limit_s; |
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protected $orderby_s; |
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protected $select_list; |
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14 |
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function __construct(&$store, $tbl_prefix="") { |
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debug("postgresql_compiler($tbl_prefix)", "store"); |
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$this->tbl_prefix=$tbl_prefix; |
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$this->store=$store; |
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} |
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14 |
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function test_for_lowercase(&$node){ |
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$ret = false; |
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switch ((string)$node["id"]) { |
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14 |
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case 'ident': |
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if ( $node["table"] == "nodes" ) { |
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if ( $node["field"] == "path" or $node["field"] == "parent" ) { |
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$ret = true; |
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} |
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} |
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break; |
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} |
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return $ret; |
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} |
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14 |
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function compile_tree(&$node) { |
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switch ((string)$node["id"]) { |
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case 'property': |
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$table=$this->tbl_prefix.$node["table"]; |
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$field=$node["field"]; |
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$record_id=$node["record_id"]; |
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if (!$record_id) { |
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if (!$this->in_orderby) { |
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$result=" $table.object = ".$this->tbl_prefix."objects.id and $table.$field "; |
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$this->used_tables[$table]=$table; |
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View Code Duplication |
} else { |
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if ($this->in_orderby && $node["nls"]) { |
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/* |
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we do a left join so that we will also find non |
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matching objects |
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*/ |
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$objects_table = $this->tbl_prefix."objects"; |
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$this->nls_join[$table] = "left join $table as order_$table on $objects_table.id=order_$table.object and order_$table.AR_nls='".$node["nls"]."' "; |
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$result = " order_$table.$field "; |
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$this->select_list["order_".$table.".".$field] = "order_$table.$field"; |
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} else { |
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/* |
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if we are parsing 'orderby' properties we have |
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to join our tables for the whole query |
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*/ |
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$this->select_tables[$table]=$table; |
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$this->used_tables[$table]=$table; |
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$result=" $table.$field "; |
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} |
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} |
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} else { |
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$this->used_tables["$table as $table$record_id"] = $table.$record_id; |
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if (!$this->in_orderby) { |
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$result=" $table$record_id.object = ".$this->tbl_prefix."objects.id and $table$record_id.$field "; |
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} else { |
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$this->select_tables["$table as $table$record_id"] = $table.$record_id; |
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$result=" $table$record_id.$field "; |
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} |
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} |
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break; |
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14 |
View Code Duplication |
case 'ident': |
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$table=$this->tbl_prefix.$node["table"]; |
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$field=$node["field"]; |
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$this->used_tables[$table]=$table; |
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$result=" $table.$field "; |
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break; |
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View Code Duplication |
case 'custom': |
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$table = $this->tbl_prefix."prop_custom"; |
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$field = $node["field"]; |
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$nls = $node["nls"]; |
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$record_id = $node["record_id"]; |
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/* |
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when we are compiling orderby properties we always want |
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to assign it to a new table alias |
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*/ |
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if ($this->in_orderby) { |
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$this->custom_id++; |
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} |
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$this->custom_ref++; |
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if (!$record_id) { |
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$this->used_tables[$table." as $table".$this->custom_id] = $table.$this->custom_id; |
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$this->select_tables[$table." as $table".$this->custom_id] = 1; |
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$this->used_custom_fields[$field] = true; |
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$result = " $table".$this->custom_id.".AR_name = '$field' "; |
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if ($nls) { |
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$result = " $result and $table".$this->custom_id.".AR_nls = '$nls' "; |
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} |
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if (!$this->in_orderby) { |
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$result = " $result and $table".$this->custom_id.".AR_value "; |
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} else { |
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$this->where_s_ext = $result; |
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$result = " $table".$this->custom_id.".AR_value "; |
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} |
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} else { |
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$this->used_tables["$table as $table$record_id"] = $table.$record_id; |
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// $this->select_tables[$table." as $table$record_id"] = 1; |
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$result = " $table$record_id.AR_name = '$field' "; |
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if (!$this->in_orderby ) { |
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if ($this->join_target_properties["prop_my"][":$record_id"]) { |
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$result=" $result and $table$record_id.object = target.object and $table$record_id.AR_value "; |
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} else { |
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$result=" $table$record_id.object = ".$this->tbl_prefix."objects.id and $table$record_id.AR_value "; |
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} |
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} else { |
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if ($this->join_target_properties[$node["table"]]) { |
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$this->join_target_properties["$table as $table$record_id"] = $table.$record_id; |
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} |
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$this->select_tables["$table as $table$record_id"] = $table.$record_id; |
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$result=" $table$record_id.AR_value "; |
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} |
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} |
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break; |
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14 |
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case 'string': |
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$result=" '".pg_escape_string($node["value"])."' "; |
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break; |
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case 'float': |
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case 'int': |
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$result=" ".$node["value"]." "; |
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break; |
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14 |
View Code Duplication |
case 'and': |
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$cr = $this->custom_ref; |
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$left=$this->compile_tree($node["left"]); |
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if ($this->custom_ref > $cr) { |
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$this->custom_id++; |
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} |
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$right=$this->compile_tree($node["right"]); |
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$cr = $this->custom_ref; |
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if ($this->custom_ref > $cr) { |
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$this->custom_id++; |
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} |
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$result=" $left and $right "; |
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break; |
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View Code Duplication |
case 'or': |
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$left=$this->compile_tree($node["left"]); |
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$right=$this->compile_tree($node["right"]); |
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$result=" $left or $right "; |
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break; |
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case 'cmp': |
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$not = ''; |
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switch ($node["operator"]) { |
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case '=': |
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case '==': |
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$operator="="; |
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break; |
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case '!=': |
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case '<=': |
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case '>=': |
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case '<': |
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case '>': |
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$operator=$node["operator"]; |
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break; |
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case '!~': |
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case '!~~': |
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$not="NOT "; |
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case '~=': |
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case '=~': |
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View Code Duplication |
case '=~~': |
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if (!strlen($node["operator"])==3) { |
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$not.="I"; |
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} |
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$operator=$not."LIKE"; |
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break; |
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case '!/': |
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case '!//': |
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$not="!"; |
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case '=/': |
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View Code Duplication |
case '=//': |
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$operator=$not."~"; |
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if (strlen($node["operator"])==3) { |
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$operator.="*"; |
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} |
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break; |
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14 |
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} |
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14 |
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if ($node["left"]["id"]!=="implements") { |
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14 |
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$left=$this->compile_tree($node["left"]); |
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200
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14 |
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$right=$this->compile_tree($node["right"]); |
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201
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14 |
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if($this->test_for_lowercase($node["left"])){ |
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// lowercase compile |
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203
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$result=" lower($left) $operator lower($right) "; |
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204
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} else { |
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205
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// normal compile |
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206
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/* lastchanged == unixtimestamp -> lastchanged == 200201.. */ |
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207
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14 |
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if ($node["left"]["field"]=="lastchanged") { |
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$right = "to_timestamp($right)"; |
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} |
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210
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14 |
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$result=" $left $operator $right "; |
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} |
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14 |
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} else { |
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$table=$this->tbl_prefix."types"; |
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$type=$this->compile_tree($node["right"]); |
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215
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switch ($operator) { |
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View Code Duplication |
case '!=': |
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$result=" (".$this->tbl_prefix."objects.type not in (select type from ".$this->tbl_prefix."types where implements = $type )) "; |
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break; |
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default: |
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$this->used_tables[$table]=$table; |
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221
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$result=" (".$this->tbl_prefix."types.implements $operator $type and ".$this->tbl_prefix."objects.vtype = ".$this->tbl_prefix."types.type ) "; |
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break; |
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} |
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} |
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14 |
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break; |
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14 |
View Code Duplication |
case 'group': |
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$left=$this->compile_tree($node["left"]); |
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if ($left) { |
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$result=" ( $left ) "; |
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} |
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break; |
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233
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14 |
View Code Duplication |
case 'orderby': |
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12 |
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$result=$this->compile_tree($node["left"]); |
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235
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12 |
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$this->orderby_s=$this->compile_tree($node["right"]); |
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236
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12 |
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break; |
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237
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238
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14 |
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case 'orderbyfield': |
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239
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12 |
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$this->in_orderby = true; |
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240
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12 |
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$left=$this->compile_tree($node["left"]); |
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12 |
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if ( $node["right"]["field"] != "none" ) { |
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242
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$right=$this->compile_tree($node["right"]); |
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243
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if ($left) { |
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$result=" $left , $right ".$node["type"]." "; |
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View Code Duplication |
if($node["left"]['id'] == 'property' && !$node["right"]['nls']){ |
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$lefttablefield = $this->tbl_prefix.$node["left"]['table'].".".$node["left"]['field']; |
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247
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$this->select_list[$lefttablefield] = $lefttablefield; |
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} |
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249
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} else { |
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250
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$result=" $right ".$node["type"]." "; |
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} |
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252
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View Code Duplication |
if($node["right"]['id'] == 'property' && !$node["right"]['nls']){ |
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253
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$righttablefield = $this->tbl_prefix.$node["right"]['table'].".".$node["right"]['field']; |
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254
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$this->select_list[$righttablefield] = $righttablefield; |
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255
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} |
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256
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} else { |
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257
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12 |
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$result = ""; |
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258
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12 |
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if ($left) { |
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259
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$result = " $left "; |
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260
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View Code Duplication |
if($node["left"]['id'] == 'property' && !$node["right"]['nls']){ |
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261
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$lefttablefield = $this->tbl_prefix.$node["left"]['table'].".".$node["left"]['field']; |
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262
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$this->select_list[$lefttablefield] = $lefttablefield; |
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263
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} |
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264
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} |
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265
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12 |
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$this->skipDefaultOrderBy = true; |
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266
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} |
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267
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12 |
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break; |
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268
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269
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14 |
View Code Duplication |
case 'limit': |
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270
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14 |
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$this->where_s=$this->compile_tree($node["left"]); |
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271
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14 |
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$this->limit_s=""; |
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272
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14 |
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if ($node["limit"]) { |
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273
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2 |
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$this->limit_s=" offset ".(int)$node["offset"]." limit ".$node["limit"]." "; |
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274
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2 |
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} else |
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275
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12 |
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if ($node["offset"]) { |
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276
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$this->limit_s=" limit ".(int)$node["offset"]." "; |
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277
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} else { |
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278
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12 |
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if ($this->limit) { |
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279
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$offset = (int)$this->offset; |
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280
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$this->limit_s=" offset $offset limit ".(int)$this->limit." "; |
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281
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} |
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282
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} |
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283
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14 |
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break; |
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284
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} |
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285
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14 |
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return $result; |
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286
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} |
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287
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|
288
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|
|
// postgresql specific compiler function |
|
289
|
14 |
|
function priv_sql_compile($tree) { |
|
290
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14 |
|
$this->custom_ref = 0; |
|
291
|
14 |
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$this->custom_id = 0; |
|
292
|
14 |
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$this->used_tables=array(); |
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293
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14 |
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$this->compile_tree($tree); |
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294
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295
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14 |
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if ( $this->error ) { |
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296
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return null; |
|
297
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} |
|
298
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299
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14 |
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$nodes=$this->tbl_prefix."nodes"; |
|
300
|
14 |
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$objects=$this->tbl_prefix."objects"; |
|
301
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14 |
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$this->used_tables[$nodes]=$nodes; |
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302
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14 |
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$this->used_tables[$objects]=$objects; |
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@reset($this->used_tables); |
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304
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14 |
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while (list($key, $val)=each($this->used_tables)) { |
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305
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14 |
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if ($tables) { |
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306
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14 |
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$tables.=", $key"; |
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307
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14 |
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} else { |
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$tables="$key"; |
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309
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} |
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310
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14 |
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if ($this->select_tables[$key]) { |
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311
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$prop_dep.=" and $val.object=$objects.id "; |
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312
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} |
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313
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14 |
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} |
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314
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14 |
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if (is_array($this->nls_join)) { |
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315
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$join = join($this->nls_join); |
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316
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} |
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317
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14 |
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if(is_array($this->select_list)){ |
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318
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$select = join(", ", $this->select_list); |
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319
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} |
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320
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321
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$query ="where $nodes.object=$objects.id $prop_dep"; |
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322
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14 |
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$query.=" and $nodes.path like '".str_replace('_','\\_',pg_escape_string($this->path))."%' "; |
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323
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14 |
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if ($this->where_s) { |
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324
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14 |
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$query.=" and ( $this->where_s ) "; |
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325
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14 |
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} |
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326
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14 |
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if ($this->where_s_ext) { |
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327
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$query .= " and ($this->where_s_ext) "; |
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328
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} |
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329
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14 |
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$order = ''; |
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330
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14 |
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if ($this->orderby_s) { |
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331
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View Code Duplication |
if ($this->skipDefaultOrderBy) { |
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332
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$order .= "order by $this->orderby_s"; |
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333
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} else { |
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334
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$order .= "order by $this->orderby_s, $nodes.parent ASC, $nodes.priority DESC, $nodes.path ASC "; |
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335
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} |
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336
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} else if (!$this->skipDefaultOrderBy) { |
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337
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2 |
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$order .= "order by $nodes.parent ASC, $nodes.priority DESC, $nodes.path ASC "; |
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338
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2 |
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} |
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339
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340
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14 |
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$order .= " $this->limit_s "; |
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341
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342
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14 |
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$select_query = "select distinct($nodes.path), $nodes.parent, $nodes.priority, "; |
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343
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14 |
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$select_query .= " $objects.id, $objects.type, $objects.object, date_part('epoch', $objects.lastchanged) as lastchanged, $objects.vtype "; |
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344
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345
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if($select){ |
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346
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$select_query .= ", " . $select; |
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347
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} |
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348
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349
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14 |
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$select_query .= " from $tables $join $query $order"; |
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350
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14 |
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$count_query = "select count(distinct($nodes.path)) as count from $tables ".$query; |
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351
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|
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352
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14 |
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return Array("select_query" => $select_query, "count_query" => $count_query); |
|
353
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} |
|
354
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355
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} |
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356
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Ariadne-CMS /
ariadne
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If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: