Various minor updates and optimizations to several core classes

wire/core/DatabaseQuerySelectFulltext.php

@@ -20,7 +20,7 @@
  * This file is licensed under the MIT license
  * https://processwire.com/about/license/mit/
  * 
- * ProcessWire 3.x, Copyright 2016 by Ryan Cramer
+ * ProcessWire 3.x, Copyright 2019 by Ryan Cramer
  * https://processwire.com
  *
  *
@@ -109,11 +109,12 @@ class DatabaseQuerySelectFulltext extends Wire {
 				break;
 
 			case '~=':
+			case '!~=':	
 				$words = preg_split('/[-\s,]/', $value, -1, PREG_SPLIT_NO_EMPTY); 
 				foreach($words as $word) {
 					$len = function_exists('mb_strlen') ? mb_strlen($word) : strlen($word);
 					if(DatabaseStopwords::has($word) || $len < $database->getVariable('ft_min_word_len')) {
-						$this->matchWordLIKE($tableName, $fieldName, $word);
+						$this->matchWordLIKE($tableName, $fieldName, $operator, $word);
 					} else {
 						$this->matchContains($tableName, $fieldName, $operator, $word);
 					}
@@ -192,26 +193,32 @@ class DatabaseQuerySelectFulltext extends Wire {
 		$tableField = "$tableName.$fieldName";
 		$database = $this->wire('database');
 		$v = $database->escapeStr($value); 
+		$not = strpos($operator, '!') === 0;
+		if($not) $operator = ltrim($operator, '!');
 
 		$n = 0; 
 		do {
 			$scoreField = "_score_{$tableName}_{$fieldName}" . (++$n);
 		} while(in_array($scoreField, self::$scoreFields)); 
 		self::$scoreFields[] = $scoreField;
-
-		$query->select("MATCH($tableField) AGAINST('$v') AS $scoreField"); 
+		
+		$match = $not ? 'NOT MATCH' : 'MATCH';
+		$query->select("$match($tableField) AGAINST('$v') AS $scoreField"); 
 		$query->orderby($scoreField . " DESC");
 
-		$partial = $operator != '~=';
+		$partial = $operator != '~=' && $operator != '!~=';
 		$booleanValue = $database->escapeStr($this->getBooleanQueryValue($value, true, $partial));
-		if($booleanValue) $j = "MATCH($tableField) AGAINST('$booleanValue' IN BOOLEAN MODE) "; 
-			else $j = '';
+		if($booleanValue) {
+			$j = "$match($tableField) AGAINST('$booleanValue' IN BOOLEAN MODE) ";
+		} else {
+			$j = '';
+		}
 			
 		if($operator == '^=' || $operator == '$=' || ($operator == '*=' && (!$j || preg_match('/[-\s]/', $v)))) { 
 			// if $operator is a ^begin/$end, or if there are any word separators in a *= operator value
 
 			if($operator == '^=' || $operator == '$=') {
-				$type = 'RLIKE';
+				$type = $not ? 'NOT RLIKE' : 'RLIKE';
 				$v = $database->escapeStr(preg_quote($value)); // note $value not $v
 				$like = "[[:space:]]*(<[^>]+>)*[[:space:]]*"; 
 				if($operator == '^=') {
@@ -221,7 +228,7 @@ class DatabaseQuerySelectFulltext extends Wire {
 				}
 
 			} else {
-				$type = 'LIKE';
+				$type = $not ? 'NOT LIKE' : 'LIKE';
 				$v = $this->escapeLIKE($v); 
 				$like = "%$v%";
 			}
@@ -241,15 +248,17 @@ class DatabaseQuerySelectFulltext extends Wire {
 	 * 
 	 * @param string $tableName
 	 * @param string $fieldName
+	 * @param string $operator
 	 * @param $word
 	 * 
 	 */
-	protected function matchWordLIKE($tableName, $fieldName, $word) {
+	protected function matchWordLIKE($tableName, $fieldName, $operator, $word) {
 		$tableField = "$tableName.$fieldName";
 		$database = $this->wire('database');
 		$v = $database->escapeStr(preg_quote($word)); 
 		$regex = "([[[:blank:][:punct:]]|^)$v([[:blank:][:punct:]]|$)";
-		$where = "($tableField REGEXP '$regex')"; 
+		$type = strpos($operator, '!') === 0 ? 'NOT REGEXP' : 'REGEXP';
+		$where = "($tableField $type '$regex')"; 
 		$this->query->where($where);
 	}
 

wire/core/Field.php

@@ -20,7 +20,7 @@
  * @property string $table Database table used by the field #pw-group-properties
  * @property string $prevTable Previously database table (if field was renamed) #pw-group-properties
  * @property Fieldtype|null $type Fieldtype module that represents the type of this field #pw-group-properties
- * @property Fieldtype $prevFieldtype Previous Fieldtype, of type was changed #pw-group-properties
+ * @property Fieldtype|null $prevFieldtype Previous Fieldtype, if type was changed #pw-group-properties
  * @property int $flags Bitmask of flags used by this field #pw-group-properties
  * @property-read string $flagsStr Names of flags used by this field (readonly) #pw-group-properties
  * @property string $label Text string representing the label of the field #pw-group-properties

wire/core/Fieldgroup.php

@@ -631,7 +631,7 @@ class Fieldgroup extends WireArray implements Saveable, Exportable, HasLookupIte
 			if(!$inputfield) continue;
 			if($inputfield->collapsed == Inputfield::collapsedHidden) continue;
 
-			$inputfield->setAttribute('value', $page->get($field->name));
+			if(!$page instanceof NullPage) $inputfield->setAttribute('value', $page->get($field->name));
 			
 			if($multiMode) {
 				$fieldInputfields[$field->id] = $inputfield;

wire/core/Fieldgroups.php

@@ -467,9 +467,14 @@ class Fieldgroups extends WireSaveableItemsLookup {
 		if(is_null($template)) $template = $this->wire('templates')->get($fieldgroup->name);
 
 		if(($field->flags & Field::flagGlobal) && (!$template || !$template->noGlobal)) {
-			return
-				"Field '$field' may not be removed from fieldgroup '$fieldgroup->name' " . 
-				"because it is globally required (Field::flagGlobal).";
+			if($template && $template->getConnectedField()) {
+				// if template has a 1-1 relationship with a field, noGlobal is not enforced
+				return false;
+			} else {
+				return
+					"Field '$field' may not be removed from fieldgroup '$fieldgroup->name' " .
+					"because it is globally required (Field::flagGlobal).";
+			}
 		}
 
 		if($field->flags & Field::flagPermanent) {

wire/core/Template.php

@@ -7,7 +7,7 @@
  * #pw-body Template objects also maintain several properties which can affect the render behavior of pages using it. 
  * #pw-order-groups identification,manipulation,family,URLs,access,files,cache,page-editor,behaviors,other
  * 
- * ProcessWire 3.x, Copyright 2016 by Ryan Cramer
+ * ProcessWire 3.x, Copyright 2019 by Ryan Cramer
  * https://processwire.com
  * 
  * @todo add multi-language option for redirectLogin setting
@@ -108,6 +108,11 @@
  * @property string $tags Optional tags that can group this template with others in the admin templates list. #pw-group-other 
  * @property string $pageLabelField CSV or space separated string of field names to be displayed by ProcessPageList (overrides those set with ProcessPageList config). #pw-group-other
  * @property int|bool $_importMode Internal use property set by template importer when importing #pw-internal
+ * @property int|null $connectedFieldID ID of connected field or null or 0 if not applicable. #pw-internal
+ * 
+ * Hookable methods
+ * 
+ * @method Field|null getConnectedField() Get Field object connected to this field, or null if not applicable. #pw-internal
  * 
  *
  */
@@ -263,6 +268,7 @@ class Template extends WireData implements Saveable, Exportable {
 		'nameLabel' => '', // label for the "name" property of the page (if something other than "Name")
 		'contentType' => '', // Content-type header or index of header from $config->contentTypes
 		'errorAction' => 0, // action to take on save when required field on published page is empty (0=notify,1=restore,2=unpublish)
+		'connectedFieldID' => null, // ID of connected field or null if not applicable
 		'ns' => '', // namespace found in the template file, or blank if not determined
 		); 
 
@@ -700,7 +706,10 @@ class Template extends WireData implements Saveable, Exportable {
 			$this->setIcon($value);
 
 		} else if($key == 'urlSegments') {
-			$this->urlSegments($value); 
+			$this->urlSegments($value);
+			
+		} else if($key == 'connectedFieldID') {
+			parent::set($key, (int) $value);
 			
 		} else {
 			parent::set($key, $value); 
@@ -1192,6 +1201,37 @@ class Template extends WireData implements Saveable, Exportable {
 		return $this;
 	}
 
+	/**
+	 * Get Field object connected with this template
+	 * 
+	 * #pw-internal
+	 * 
+	 * @return Field|null Returns Field object or null if not applicable
+	 * @since 3.0.142
+	 * 
+	 */
+	public function ___getConnectedField() {
+		if($this->connectedFieldID) {
+			$field = $this->wire('fields')->get((int) $this->connectedFieldID); 
+		} else {
+			$field = null;
+		}
+		if(!$field) {
+			$fieldName = '';
+			$templateName = $this->name;
+			$prefixes = array('field-', 'field_', 'repeater_');
+			foreach($prefixes as $prefix) {
+				if(strpos($templateName, $prefix) !== 0) continue;
+				list(,$fieldName) = explode($prefix, $templateName, 2);
+				break;
+			}
+			if($fieldName) {
+				$field = $this->wire('fields')->get($fieldName);
+			}
+		}
+		return $field;
+	}
+
 	/**
 	 * Ensures that isset() and empty() work for this classes properties.
 	 *

wire/modules/Process/ProcessTemplate/ProcessTemplate.module

@@ -2724,7 +2724,7 @@ class ProcessTemplate extends Process {
 				}
 
 				if($isDeleted) {
-					if(($field->flags & Field::flagGlobal) && !$this->template->noGlobal) {
+					if(!$this->template->getConnectedField() && (($field->flags & Field::flagGlobal) && !$this->template->noGlobal)) {
 						$this->error(sprintf($this->_('Field "%s" may not be removed because it is globally required by all fieldgroups'), $field));
 					} else {
 						$removedFields->add($field);

wire/templates-admin/scripts/inputfields.js

@@ -848,7 +848,11 @@ function InputfieldColumnWidths($target) {
 		}
 		
 		colspacing = $form.attr('data-colspacing');
-		if(typeof colspacing == 'undefined') colspacing = 1;
+		if(typeof colspacing == 'undefined') {
+			colspacing = 1;
+		} else {
+			colspacing = parseInt(colspacing);
+		}
 		
 		// if no borders, we don't worry about keeping heights aligned since they won't be seen
 		useHeights = $form.hasClass('InputfieldFormNoHeights') ? false : true;