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File name : DynamicField.php
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<?php
/**
 *
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
 *
 * SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
 * Copyright (C) 2011 - 2018 SalesAgility Ltd.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
 * reasonably feasible for technical reasons, the Appropriate Legal Notices must
 * display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
 */

if (!defined('sugarEntry') || !sugarEntry) {
    die('Not A Valid Entry Point');
}

class DynamicField
{
    public $use_existing_labels = false; // this value is set to true by install_custom_fields() in ModuleInstaller.php; everything else expects it to be false
    public $base_path = '';
    /**
     * @var DBManager
     */
    public $db;
    /**
     * @var SugarBean
     */
    public $bean;

    /**
     * DynamicField constructor.
     * @param string $module
     */
    public function __construct($module = '')
    {
        global $sugar_config;
        $this->module = (!empty($module)) ? $module : ((isset($_REQUEST['module']) && !empty($_REQUEST['module'])) ? $_REQUEST ['module'] : '');
        $this->base_path = "custom/Extension/modules/{$this->module}/Ext/Vardefs";
        if (isset($sugar_config['dbconfig'])) {
            $this->db = DBManagerFactory::getInstance();
        }
    }

    /**
     * @return array|bool|int|mixed|string
     */
    public function getModuleName()
    {
        return $this->module;
    }

    /*
     * As DynamicField has a counterpart in MBModule, provide the MBModule function getPackageName() here also
     */
    public function getPackageName()
    {
        return;
    }

    /**
     *
     */
    public function deleteCache()
    {
    }

    /**
     * This will add the bean as a reference in this object as well as building the custom field cache if it has not been built
     * LOADS THE BEAN IF THE BEAN IS NOT BEING PASSED ALONG IN SETUP IT SHOULD BE SET PRIOR TO SETUP.
     *
     * @param SugarBean $bean
     */
    public function setup($bean = null)
    {
        if ($bean) {
            $this->bean = $bean;
        }
        if (isset($this->bean->module_dir)) {
            $this->module = $this->bean->module_dir;
        }
        if (!isset($GLOBALS['dictionary'][$this->bean->object_name]['custom_fields'])) {
            $this->buildCache($this->module);
        }
    }

    /**
     * @param string $language
     * @param $key
     * @param $value
     */
    public function setLabel($language, $key = null, $value = null)
    {
        // set $language = 'en_us' as default
        if (!$language) {
            $language = 'en_us';
        }

        $params ['label_' . $key] = $value;
        require_once 'modules/ModuleBuilder/parsers/parser.label.php';
        $parser = new ParserLabel($this->module);
        $parser->handleSave($params, $language);
    }

    /**
     * Builds the cache for custom fields based on the vardefs.
     *
     * @param string|bool $module
     * @param bool $saveCache Boolean value indicating whether or not to pass saveCache value to saveToVardef, defaults to true
     *
     * @return bool
     */
    public function buildCache($module = false, $saveCache = true)
    {
        //We can't build the cache while installing as the required database tables may not exist.
        if (!empty($GLOBALS['installing']) && $GLOBALS['installing'] == true || empty($this->db)) {
            return false;
        }
        if ($module == '../data') {
            return false;
        }

        static $results = array();

        $where = '';
        if (!empty($module)) {
            $where .= " custom_module='$module' AND ";
            unset($results[$module]); // clear out any old results for the module as $results is declared static
        } else {
            $results = array(); // clear out results - if we remove a module we don't want to have its old vardefs hanging around
            return false;
        }

        $GLOBALS['log']->debug('rebuilding cache for ' . $module);
        $query = "SELECT * FROM fields_meta_data WHERE $where deleted = 0";

        $result = $this->db->query($query);
        require_once 'modules/DynamicFields/FieldCases.php';

        // retrieve the field definition from the fields_meta_data table
        // using 'encode'=false to fetchByAssoc to prevent any pre-formatting of the base metadata
        // for immediate use in HTML. This metadata will be further massaged by get_field_def() and so should not be pre-formatted
        while ($row = $this->db->fetchByAssoc($result, false)) {
            $field = get_widget($row ['type']);

            foreach ($row as $key => $value) {
                $field->$key = $value;
            }
            $field->default = $field->default_value;
            $vardef = $field->get_field_def();
            $vardef ['id'] = $row ['id'];
            $vardef ['custom_module'] = $row ['custom_module'];
            if (empty($vardef ['source'])) {
                $vardef ['source'] = 'custom_fields';
            }
            if (empty($results [$row ['custom_module']])) {
                $results [$row ['custom_module']] = array();
            }
            $results [$row ['custom_module']] [$row ['name']] = $vardef;
        }
        if (empty($module)) {
            foreach ($results as $module => $result) {
                $this->saveToVardef($module, $result, $saveCache);
            }
        } else {
            if (!empty($results [$module])) {
                $this->saveToVardef($module, $results [$module], $saveCache);
            } else {
                $this->saveToVardef($module, array(), $saveCache);
            }
        }

        return true;
    }


    /**
     * Returns the widget for a custom field from the fields_meta_data table.
     *
     * @param $module
     * @param $fieldName
     * @return null|TemplateDate|TemplateDecimal|TemplateFloat|TemplateInt|TemplateText|TemplateTextArea
     * @throws Exception
     */
    public function getFieldWidget($module, $fieldName)
    {
        if (empty($module) || empty($fieldName)) {
            sugar_die("Unable to load widget for '$module' : '$fieldName'");
        }
        $query = "SELECT * FROM fields_meta_data WHERE custom_module='$module' AND name='$fieldName' AND deleted = 0";
        $result = $this->db->query($query);
        require_once 'modules/DynamicFields/FieldCases.php';
        if ($row = $this->db->fetchByAssoc($result)) {
            $field = get_widget($row ['type']);
            $field->populateFromRow($row);

            return $field;
        }
    }

    /**
     * Updates the cached vardefs with the custom field information stored in result.
     *
     * @param string $module
     * @param array $result
     * @param bool $saveCache Boolean value indicating whether or not to call VardefManager::saveCache, defaults to true
     */
    public function saveToVardef($module, $result, $saveCache = true)
    {
        global $beanList;
        if (!empty($beanList [$module])) {
            $object = BeanFactory::getObjectName($module);

            if (empty($GLOBALS['dictionary'][$object]['fields'])) {
                //if the vardef isn't loaded let's try loading it.
                VardefManager::refreshVardefs($module, $object, null, false);
                //if it's still not loaded we really don't have anything useful to cache
                if (empty($GLOBALS['dictionary'][$object]['fields'])) {
                    return;
                }
            }
            if (!isset($GLOBALS['dictionary'][$object]['custom_fields'])) {
                $GLOBALS['dictionary'][$object]['custom_fields'] = false;
            }
            if (!empty($GLOBALS ['dictionary'] [$object])) {
                if (!empty($result)) {
                    // First loop to add

                    foreach ($result as $field) {
                        foreach ($field as $k => $v) {
                            //allows values for custom fields to be defined outside of the scope of studio
                            if (!isset($GLOBALS ['dictionary'] [$object] ['fields'] [$field ['name']][$k])) {
                                $GLOBALS ['dictionary'] [$object] ['fields'] [$field ['name']][$k] = $v;
                            }
                        }
                    }

                    // Second loop to remove
                    foreach ($GLOBALS ['dictionary'] [$object] ['fields'] as $name => $fieldDef) {
                        if (isset($fieldDef ['custom_module'])) {
                            if (!isset($result [$name])) {
                                unset($GLOBALS ['dictionary'] [$object] ['fields'] [$name]);
                            } else {
                                $GLOBALS ['dictionary'] [$object] ['custom_fields'] = true;
                            }
                        }
                    } //if
                }
            }

            $manager = new VardefManager();
            if ($saveCache) {
                $manager->saveCache($this->module, $object);
            }

            // Everything works off of vardefs, so let's have it save the users vardefs
            // to the employees module, because they both use the same table behind
            // the scenes
            if ($module == 'Users') {
                $manager->loadVardef('Employees', 'Employee', true);

                return;
            }
        }
    }

    /**
     * returns either false or an array containing the select and join parameter for a query using custom fields.
     *
     * @param $expandedList boolean    If true, return a list of all fields with source=custom_fields in the select instead of the standard _cstm.*
     *     This is required for any downstream construction of a SQL statement where we need to manipulate the select list,
     *     for example, listViews with custom relate fields where the value comes from join rather than from the custom table
     * @param bool $includeRelates
     * @param bool $where
     *
     * @return array select=>select columns, join=>prebuilt join statement
     */
    public function getJOIN($expandedList = false, $includeRelates = false, &$where = false)
    {
        if (!$this->bean->hasCustomFields()) {
            return array(
                'select' => '',
                'join' => '',
            );
        }

        if (empty($expandedList)) {
            $select = ",{$this->bean->table_name}_cstm.*";
        } else {
            $select = '';
            $isList = is_array($expandedList);
            foreach ($this->bean->field_defs as $name => $field) {
                if (!empty($field['source']) && $field['source'] == 'custom_fields' && (!$isList || !empty($expandedList[$name]))) {
                    // assumption: that the column name in _cstm is the same as the field name. Currently true.
                    // however, two types of dynamic fields do not have columns in the custom table - html fields (they're readonly) and flex relates (parent_name doesn't exist)
                    if ($field['type'] != 'html' && $name != 'parent_name') {
                        $select .= ",{$this->bean->table_name}_cstm.{$name}";
                    }
                }
            }
        }
        $join = ' LEFT JOIN ' . $this->bean->table_name . '_cstm ON ' . $this->bean->table_name . '.id = ' . $this->bean->table_name . '_cstm.id_c ';

        if ($includeRelates) {
            $jtAlias = 'relJoin';
            $jtCount = 1;
            foreach ($this->bean->field_defs as $name => $field) {
                if ($field['type'] == 'relate' && isset($field['custom_module'])) {
                    $relateJoinInfo = $this->getRelateJoin($field, $jtAlias . $jtCount);
                    $select .= $relateJoinInfo['select'];
                    $join .= $relateJoinInfo['from'];

                    if ($where) {
                        $pattern = '/' . $field['name'] . '\slike/i';
                        $replacement = $relateJoinInfo['name_field'] . ' like';
                        $where = preg_replace($pattern, $replacement, $where);
                    }
                    ++$jtCount;
                }
            }
        }

        return array('select' => $select, 'join' => $join);
    }

    /**
     * @param array $field_def
     * @param string $joinTableAlias
     * @param bool $withIdName
     * @return array|bool
     */
    public function getRelateJoin($field_def, $joinTableAlias, $withIdName = true)
    {
        if (empty($field_def['type']) || $field_def['type'] != 'relate') {
            return false;
        }

        $rel_mod = BeanFactory::getBean($field_def['module']);
        if (!$rel_mod) {
            return false;
        }

        $rel_table = $rel_mod->table_name;
        $name_field = '';
        if (isset($rel_mod->field_defs['name'])) {
            $name_field_def = $rel_mod->field_defs['name'];
            if (isset($name_field_def['db_concat_fields'])) {
                $name_field = $this->db->concat($joinTableAlias, $name_field_def['db_concat_fields']);
            } //If the name field is non-db, we need to find another field to display
            elseif (!empty($rel_mod->field_defs['name']['source']) && $rel_mod->field_defs['name']['source'] == 'non-db' && !empty($field_def['rname'])) {
                $name_field = "$joinTableAlias." . $field_def['rname'];
            } else {
                $name_field = "$joinTableAlias.name";
            }
        }
        $tableName = isset($field_def['custom_module']) ? "{$this->bean->table_name}_cstm" : $this->bean->table_name;
        $relID = $field_def['id_name'];
        $ret_array['rel_table'] = $rel_table;
        $ret_array['name_field'] = $name_field;
        $ret_array['select'] = ($withIdName ? ", {$tableName}.{$relID}" : '') . ", {$name_field} {$field_def['name']} ";
        $ret_array['from'] = " LEFT JOIN $rel_table $joinTableAlias ON $tableName.$relID = $joinTableAlias.id"
            . " AND $joinTableAlias.deleted=0 ";

        return $ret_array;
    }

    /**
     * Fills in all the custom fields of type relate relationships for an object.
     */
    public function fill_relationships()
    {
        if (!empty($this->bean->relDepth)) {
            if ($this->bean->relDepth > 1) {
                return;
            }
        } else {
            $this->bean->relDepth = 0;
        }
        foreach ($this->bean->field_defs as $field) {
            if (empty($field['source']) || $field['source'] != 'custom_fields') {
                continue;
            }
            if ($field['type'] == 'relate') {
                $related_module = $field['ext2'];
                $name = $field['name'];
                if (empty($this->bean->$name)) { //Don't load the relationship twice
                    $id_name = $field['id_name'];
                    $mod = BeanFactory::getBean($related_module);
                    if (is_object($mod) && isset($this->bean->$name)) {
                        $mod->relDepth = $this->bean->relDepth + 1;
                        $mod->retrieve($this->bean->$id_name);
                        $this->bean->$name = $mod->name;
                    }
                }
            }
        }
    }

    /**
     * Process the save action for sugar bean custom fields.
     *
     * @param bool $isUpdate
     */
    public function save($isUpdate)
    {
        if ($this->bean->hasCustomFields() && isset($this->bean->id)) {
            $query = '';
            if ($isUpdate) {
                $query = 'UPDATE ' . $this->bean->table_name . '_cstm SET ';
            }
            $queryInsert = 'INSERT INTO ' . $this->bean->table_name . '_cstm (id_c';
            $values = "('" . $this->bean->id . "'";
            $first = true;
            foreach ($this->bean->field_defs as $name => $field) {
                if (empty($field['source']) || $field['source'] != 'custom_fields') {
                    continue;
                }
                if ($field['type'] == 'html' || $field['type'] == 'parent') {
                    continue;
                }

                if (!empty($this->bean->bean_fields_to_save) && !in_array($name, $this->bean->bean_fields_to_save, true)){
                    continue;
                }

                if (isset($this->bean->$name)) {
                    $quote = "'";

                    if (in_array($field['type'], array('int', 'float', 'double', 'uint', 'ulong', 'long', 'short', 'tinyint', 'currency', 'decimal'))) {
                        $quote = '';
                        if (!isset($this->bean->$name) || !is_numeric($this->bean->$name)) {
                            if (!empty($field['required'])) {
                                $this->bean->$name = 0;
                            } else {
                                $this->bean->$name = 'NULL';
                            }
                        }
                    }
                    if ($field['type'] == 'bool') {
                        if ($this->bean->$name === false) {
                            $this->bean->$name = '0';
                        } elseif ($this->bean->$name === true) {
                            $this->bean->$name = '1';
                        }
                    }

                    $val = $this->bean->$name;
                    if (($field['type'] == 'date' || $field['type'] == 'datetimecombo') && (empty($this->bean->$name) || $this->bean->$name == '1900-01-01')) {
                        $quote = '';
                        $val = 'NULL';
                        $this->bean->$name = ''; // do not set it to string 'NULL'
                    }
                    if ($isUpdate) {
                        if ($first) {
                            $query .= " $name=$quote" . $this->db->quote($val) . (string)$quote;
                        } else {
                            $query .= " ,$name=$quote" . $this->db->quote($val) . (string)$quote;
                        }
                    }
                    $first = false;
                    $queryInsert .= " ,$name";
                    $values .= " ,$quote" . $this->db->quote($val) . (string)$quote;
                }
            }
            if ($isUpdate) {
                $query .= " WHERE id_c='" . $this->bean->id . "'";
            }

            $queryInsert .= " ) VALUES $values )";

            if (!$first) {
                if (!$isUpdate) {
                    $this->db->query($queryInsert);
                } else {
                    $checkQuery = "SELECT id_c FROM {$this->bean->table_name}_cstm WHERE id_c = '{$this->bean->id}'";
                    if ($this->db->getOne($checkQuery)) {
                        $this->db->query($query);
                    } else {
                        $this->db->query($queryInsert);
                    }
                }
            }
        }
    }

    /**
     * Deletes the field from fields_meta_data and drops the database column then it rebuilds the cache
     * Use the widgets get_db_modify_alter_table() method to get the table sql - some widgets do not need any custom table modifications.
     *
     * @param TemplateField $widget
     */
    public function deleteField($widget)
    {
        require_once 'modules/DynamicFields/templates/Fields/TemplateField.php';
        global $beanList;
        if (!($widget instanceof TemplateField)) {
            $field_name = $widget;
            $widget = new TemplateField();
            $widget->name = $field_name;
        }
        $object_name = $beanList[$this->module];

        //Some modules like cases have a bean name that doesn't match the object name
        if (empty($GLOBALS['dictionary'][$object_name])) {
            $newName = BeanFactory::getObjectName($this->module);
            $object_name = $newName != false ? $newName : $object_name;
        }

        $this->db->query("DELETE FROM fields_meta_data WHERE id='" . $this->module . $widget->name . "'");
        $sql = $widget->get_db_delete_alter_table($this->bean->table_name . '_cstm');
        if (!empty($sql)) {
            $this->db->query($sql);
        }

        $this->removeVardefExtension($widget);
        VardefManager::clearVardef();
        VardefManager::refreshVardefs($this->module, $object_name);
    }

    /*
     * Method required by the TemplateRelatedTextField->save() method
     * Taken from MBModule's implementation
     */
    /**
     * @param string $name
     * @param string $type
     * @return bool
     */
    public function fieldExists($name = '', $type = '')
    {
        // must get the vardefs from the GLOBAL array as $bean->field_defs does not contain the values from the cache at this point
        // TODO: fix this - saveToVardefs() updates GLOBAL['dictionary'] correctly, obtaining its information directly from the fields_meta_data table via buildCache()...
        $name = $this->getDBName($name);
        $vardefs = $GLOBALS['dictionary'][$this->bean->object_name]['fields'];
        if (!empty($vardefs)) {
            if (empty($type) && empty($name)) {
                return false;
            } elseif (empty($type)) {
                return !empty($vardefs[$name]);
            } elseif (empty($name)) {
                foreach ($vardefs as $def) {
                    if (!empty($def['type']) && $def['type'] == $type) {
                        return true;
                    }
                }

                return false;
            } else {
                return !empty($vardefs[$name]) && ($vardefs[$name]['type'] == $type);
            }
        } else {
            return false;
        }
    }

    /**
     * Adds a custom field using a field object.
     *
     * @param TemplateField $field
     *
     * @return bool
     */
    public function addFieldObject(&$field)
    {
        $GLOBALS['log']->debug('adding field');
        $object_name = $this->module;
        $db_name = $field->name;

        $fmd = BeanFactory::newBean('EditCustomFields');
        $id = $fmd->retrieve($object_name . $db_name, true, false);
        $is_update = false;
        $label = strtoupper($field->label);
        if (!empty($id)) {
            $is_update = true;
        } else {
            $db_name = $this->getDBName($field->name);
            $field->name = $db_name;
        }
        $this->createCustomTable();
        $fmd->id = $object_name . $db_name;
        $fmd->custom_module = $object_name;
        $fmd->name = $db_name;
        $fmd->vname = $label;
        $fmd->type = $field->type;
        $fmd->help = $field->help;
        if (!empty($field->len)) {
            $fmd->len = $field->len;
        } // tyoung bug 15407 - was being set to $field->size so changes weren't being saved
        $fmd->required = ($field->required ? 1 : 0);
        $fmd->default_value = $field->default;
        $fmd->ext1 = $field->ext1;
        $fmd->ext2 = $field->ext2;
        $fmd->ext3 = $field->ext3;
        $fmd->ext4 = (isset($field->ext4) ? $field->ext4 : '');
        $fmd->comments = $field->comment;
        $fmd->massupdate = $field->massupdate;
        $fmd->importable = (isset($field->importable)) ? $field->importable : null;
        $fmd->duplicate_merge = $field->duplicate_merge;
        $fmd->audited = $field->audited;
        $fmd->inline_edit = $field->inline_edit;
        $fmd->reportable = ($field->reportable ? 1 : 0);
        if (!$is_update) {
            $fmd->new_with_id = true;
        }
        if ($field) {
            if (!$is_update) {
                //Do two SQL calls here in this case
                //The first is to create the column in the custom table without the default value
                //The second is to modify the column created in the custom table to set the default value
                //We do this so that the existing entries in the custom table don't have the default value set
                $field->default = '';
                $field->default_value = '';
                // resetting default and default_value does not work for multienum and causes trouble for MsSQL
                // so using a temporary variable here to indicate that we don't want default for this query
                $field->no_default = 1;
                $query = $field->get_db_add_alter_table($this->bean->table_name . '_cstm');
                // unset temporary member variable
                unset($field->no_default);
                if (!empty($query)) {
                    $this->db->query($query, true, 'Cannot create column');
                    $field->default = $fmd->default_value;
                    $field->default_value = $fmd->default_value;
                    $query = $field->get_db_modify_alter_table($this->bean->table_name . '_cstm');
                    if (!empty($query)) {
                        $this->db->query($query, true, 'Cannot set default');
                    }
                }
            } else {
                $query = $field->get_db_modify_alter_table($this->bean->table_name . '_cstm');
                if (!empty($query)) {
                    $this->db->query($query, true, 'Cannot modify field');
                }
            }
            $fmd->save();
            $this->buildCache($this->module);
            $this->saveExtendedAttributes($field, array_keys($fmd->field_defs));
            // Fix #9119 - The cache/themes folder needs to be rebuilt after changing custom field properties.
            // https://github.com/salesagility/SuiteCRM/issues/9119
            include_once('include/TemplateHandler/TemplateHandler.php');
            TemplateHandler::clearCache($this->module);
        }

        return true;
    }

    /**
     * @param $field
     * @param $column_fields
     */
    public function saveExtendedAttributes($field, $column_fields)
    {
        require_once 'modules/ModuleBuilder/parsers/StandardField.php';
        require_once 'modules/DynamicFields/FieldCases.php';
        global $beanList;

        $to_save = array();
        $base_field = get_widget($field->type);
        foreach ($field->vardef_map as $property => $fmd_col) {
            //Skip over attributes that are either the default or part of the normal attributes stored in the DB
            if (!isset($field->$property) || in_array($fmd_col, $column_fields) || in_array($property, $column_fields)
                || $this->isDefaultValue($property, $field->$property, $base_field)
                || $property == 'action' || $property == 'label_value' || $property == 'label'
                || (substr($property, 0, 3) == 'ext' && strlen($property) == 4)
            ) {
                continue;
            }
            $to_save[$property] =
                is_string($field->$property) ? htmlspecialchars_decode($field->$property, ENT_QUOTES) : $field->$property;
        }
        $bean_name = $beanList[$this->module];

        $this->writeVardefExtension($bean_name, $field, $to_save);
    }

    /**
     * @param $property
     * @param $value
     * @param $baseField
     * @return bool
     */
    protected function isDefaultValue($property, $value, $baseField)
    {
        switch ($property) {
            case 'importable':
                return $value === 'true' || $value === '1' || $value === true || $value === 1;
                break;
            case 'required':
            case 'audited':
            case 'inline_edit':
            case 'massupdate':
                return $value === 'false' || $value === '0' || $value === false || $value === 0;
                break;
            case 'default_value':
            case 'default':
            case 'help':
            case 'comments':
                return $value == '';
            case 'duplicate_merge':
                return $value === 'false' || $value === '0' || $value === false || $value === 0 || $value === 'disabled';
                break;
        }

        if (isset($baseField->$property)) {
            return $baseField->$property == $value;
        }

        return false;
    }

    /**
     * @param $bean_name
     * @param $field
     * @param $def_override
     * @return bool
     */
    protected function writeVardefExtension($bean_name, $field, $def_override)
    {
        //Hack for the broken cases module
        $vBean = $bean_name == 'aCase' ? 'Case' : $bean_name;
        $file_loc = "$this->base_path/_override_sugarfield_{$field->name}.php";

        $out = "<?php\n // created: " . date('Y-m-d H:i:s') . "\n";
        foreach ($def_override as $property => $val) {
            $out .= override_value_to_string_recursive(array($vBean, 'fields', $field->name, $property), 'dictionary', $val) . "\n";
        }

        $out .= "\n ?>";

        if (!file_exists($this->base_path)) {
            mkdir_recursive($this->base_path);
        }

        if ($fh = @sugar_fopen($file_loc, 'w')) {
            fwrite($fh, $out);
            fclose($fh);

            return true;
        } else {
            return false;
        }
    }

    /**
     * @param $field
     */
    protected function removeVardefExtension($field)
    {
        $file_loc = "$this->base_path/sugarfield_{$field->name}.php";

        if (is_file($file_loc)) {
            unlink($file_loc);
        }
    }

    /**
     * DEPRECIATED: Use addFieldObject instead.
     * Adds a Custom Field using parameters.
     *
     * @param string $name
     * @param string $label
     * @param string $type
     * @param string $max_size
     * @param string $required_option
     * @param string $default_value
     * @param string $ext1
     * @param string $ext2
     * @param string $ext3
     * @param int $audited
     * @param int $inline_edit
     * @param int $mass_update
     * @param string $ext4
     * @param string $help
     * @param int $duplicate_merge
     * @param string $comment
     *
     * @return bool
     */
    public function addField($name, $label = '', $type = 'Text', $max_size = '255', $required_option = 'optional', $default_value = '', $ext1 = '', $ext2 = '', $ext3 = '', $audited = 0, $inline_edit = 1, $mass_update = 0, $ext4 = '', $help = '', $duplicate_merge = 0, $comment = '')
    {
        require_once 'modules/DynamicFields/templates/Fields/TemplateField.php';
        $field = new TemplateField();
        $field->label = $label;
        if (empty($field->label)) {
            $field->label = $name;
        }
        $field->name = $name;
        $field->type = $type;
        $field->len = $max_size;
        $field->required = (!empty($required_option) && $required_option != 'optional');
        $field->default = $default_value;
        $field->ext1 = $ext1;
        $field->ext2 = $ext2;
        $field->ext3 = $ext3;
        $field->ext4 = $ext4;
        $field->help = $help;
        $field->comments = $comment;
        $field->massupdate = $mass_update;
        $field->duplicate_merge = $duplicate_merge;
        $field->audited = $audited;
        $field->inline_edit = $inline_edit;
        $field->reportable = 1;

        return $this->addFieldObject($field);
    }

    /**
     * Creates the custom table with an id of id_c.
     *
     * @param bool $execute
     * @return string
     */
    public function createCustomTable($execute = true)
    {
        $out = '';
        if (!$this->db->tableExists($this->bean->table_name . '_cstm')) {
            $GLOBALS['log']->debug('creating custom table for ' . $this->bean->table_name);
            $idDef = array(
                'id_c' => array(
                    'name' => 'id_c',
                    'type' => 'id',
                    'required' => 1,
                ),
            );
            $idIdx = array(
                'id' => array(
                    'name' => $this->bean->table_name . '_cstm_pk',
                    'type' => 'primary',
                    'fields' => array('id_c'),
                ),
            );

            $query = $this->db->createTableSQLParams($this->bean->table_name . '_cstm', $idDef, $idIdx);
            if (!$this->db->supports('inline_keys')) {
                $indicesArr = $this->db->getConstraintSql($idIdx, $this->bean->table_name . '_cstm');
            } else {
                $indicesArr = array();
            }
            if ($execute) {
                $this->db->query($query);
                if (!empty($indicesArr)) {
                    foreach ($indicesArr as $idxq) {
                        $this->db->query($idxq);
                    }
                }
            }
            $out = $query . "\n";
            if (!empty($indicesArr)) {
                $out .= implode("\n", $indicesArr) . "\n";
            }

            $out .= $this->add_existing_custom_fields($execute);
        }

        return $out;
    }


    /**
     * Updates the db schema and adds any custom fields we have used if the custom table was dropped.
     *
     * @param bool $execute
     * @return string
     */
    public function add_existing_custom_fields($execute = true)
    {
        $out = '';
        if ($this->bean->hasCustomFields()) {
            foreach ($this->bean->field_defs as $name => $data) {
                if (empty($data['source']) || $data['source'] != 'custom_fields') {
                    continue;
                }
                $out .= $this->add_existing_custom_field($data, $execute);
            }
        }

        return $out;
    }

    /**
     * @param array $data
     * @param bool $execute
     * @return string
     */
    public function add_existing_custom_field($data, $execute = true)
    {
        $field = get_widget($data ['type']);
        $field->populateFromRow($data);
        $query = "/*MISSING IN DATABASE - {$data['name']} -  ROW*/\n"
            . $field->get_db_add_alter_table($this->bean->table_name . '_cstm');
        $out = $query . "\n";
        if ($execute) {
            $this->db->query($query);
        }

        return $out;
    }

    /**
     * @param bool $execute
     * @return string
     */
    public function repairCustomFields($execute = true)
    {
        $out = $this->createCustomTable($execute);
        //If the table didn't exist, createCustomTable will have returned all the SQL to create and populate it
        if (!empty($out)) {
            return "/*Checking Custom Fields for module : {$this->module} */\n$out";
        }
        //Otherwise make sure all the custom fields defined in the vardefs exist in the custom table.
        //We aren't checking for data types, just that the column exists.
        $db = $this->db;
        $tablename = $this->bean->table_name . '_cstm';
        $compareFieldDefs = $db->get_columns($tablename);
        foreach ($this->bean->field_defs as $name => $data) {
            if (empty($data['source']) || $data['source'] != 'custom_fields') {
                continue;
            }
            /*
             * @bug 43471
             * @issue 43471
             * @itr 23441
             *
             * force the name to be lower as it needs to be lower since that is how it's put into the key
             * in the get_columns() call above.
             */
            if (!empty($compareFieldDefs[strtolower($name)])) {
                continue;
            }
            $out .= $this->add_existing_custom_field($data, $execute);
        }
        if (!empty($out)) {
            $out = "/*Checking Custom Fields for module : {$this->module} */\n$out";
        }

        return $out;
    }

    /**
     * Adds a label to the module's mod_strings for the current language
     * Note that the system label name.
     *
     * @param string $displayLabel The label value to be displayed
     *
     * @return string The core of the system label name - returns currency_id5 for example, when the full label would then be LBL_CURRENCY_ID5
     *                TODO: Only the core is returned for historical reasons - switch to return the real system label
     */
    public function addLabel($displayLabel)
    {
        $mod_strings = return_module_language($GLOBALS['current_language'], $this->module);
        $limit = 10;
        $count = 0;
        $field_key = $this->getDBName($displayLabel, false);
        $systemLabel = $field_key;
        if (!$this->use_existing_labels) { // use_existing_labels defaults to false in this module; as of today, only set to true by ModuleInstaller.php
            while (isset($mod_strings [$systemLabel]) && $count <= $limit) {
                $systemLabel = $field_key . "_$count";
                ++$count;
            }
        }
        $selMod = (!empty($_REQUEST['view_module'])) ? $_REQUEST['view_module'] : $this->module;
        require_once 'modules/ModuleBuilder/parsers/parser.label.php';
        $parser = new ParserLabel($selMod, isset($_REQUEST ['view_package']) ? $_REQUEST ['view_package'] : null);
        $parser->handleSave(array('label_' . $systemLabel => $displayLabel), $GLOBALS ['current_language']);

        return $systemLabel;
    }

    /**
     * Returns a Database Safe Name.
     *
     * @param string $name
     * @param bool $_C do we append _c to the name
     *
     * @return string
     */
    public function getDBName($name, $_C = true)
    {
        static $cached_results = array();
        if (!empty($cached_results[$name])) {
            return $cached_results[$name];
        }
        $exclusions = array('parent_type', 'parent_id', 'currency_id', 'parent_name');
        // Remove any non-db friendly characters
        $return_value = preg_replace("/[^\w]+/", '_', $name);
        if ($_C == true && !in_array($return_value, $exclusions) && substr($return_value, -2) != '_c') {
            $return_value .= '_c';
        }
        $cached_results[$name] = $return_value;

        return $return_value;
    }

    /**
     * @param $where_clauses
     */
    public function setWhereClauses(&$where_clauses)
    {
        if (isset($this->avail_fields)) {
            foreach ($this->avail_fields as $name => $value) {
                if (!empty($_REQUEST[$name])) {
                    $where_clauses[] = $this->bean->table_name . "_cstm.$name LIKE '" . $this->db->quote($_REQUEST[$name]) . "%'";
                }
            }
        }
    }

    /////////////////////////BACKWARDS COMPATIBILITY MODE FOR PRE 5.0 MODULES\\\\\\\\\\\\\\\\\\\\\\\\\\\
    ////////////////////////////END BACKWARDS COMPATIBILITY MODE FOR PRE 5.0 MODULES\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

    /**
     * DEPRECATED.
     */
    public function retrieve()
    {
        if (!isset($this->bean)) {
            $GLOBALS['log']->fatal('DynamicField retrieve, bean not instantiated');

            return false;
        }

        if (!$this->bean->hasCustomFields()) {
            return false;
        }

        $query = 'SELECT * FROM ' . $this->bean->table_name . "_cstm WHERE id_c='" . $this->bean->id . "'";
        $result = $this->db->query($query);
        $row = $this->db->fetchByAssoc($result);

        if ($row) {
            foreach ($row as $name => $value) {
                // originally in pre-r30895 we checked if this field was in avail_fields i.e., in fields_meta_data and not deleted
                // with the removal of avail_fields post-r30895 we have simplified this - we now retrieve every custom field even if previously deleted
                // this is considered harmless as the value although set in the bean will not otherwise be used (nothing else works off the list of fields in the bean)
                $this->bean->$name = $value;
            }
        }
        return true;
    }

    /**
     * @param XTemplate $xtpl
     * @param string $view
     */
    public function populateXTPL($xtpl, $view)
    {
        if ($this->bean->hasCustomFields()) {
            $results = $this->getAllFieldsView($view, 'xtpl');
            foreach ($results as $name => $value) {
                if (is_array($value['xtpl'])) {
                    foreach ($value['xtpl'] as $xName => $xValue) {
                        $xtpl->assign(strtoupper($xName), $xValue);
                    }
                } else {
                    $xtpl->assign(strtoupper($name), $value['xtpl']);
                }
            }
        }
    }


    /**
     * @param XTemplate $xtpl
     * @param string $view
     */
    public function populateAllXTPL($xtpl, $view)
    {
        $this->populateXTPL($xtpl, $view);
    }

    /**
     * @param $view
     * @param $type
     * @return array
     */
    public function getAllFieldsView($view, $type)
    {
        require_once 'modules/DynamicFields/FieldCases.php';
        $results = array();
        foreach ($this->bean->field_defs as $name => $data) {
            if (empty($data['source']) || $data['source'] != 'custom_fields') {
                continue;
            }
            $field = get_widget($data ['type']);
            $field->populateFromRow($data);
            $field->view = $view;
            $field->bean = $this->bean;
            switch (strtolower($type)) {
                case 'xtpl':
                    $results[$name] = array('xtpl' => $field->get_xtpl());
                    break;
                case 'html':
                    $results[$name] = array('html' => $field->get_html(), 'label' => $field->get_html_label(), 'fieldType' => $field->data_type, 'isCustom' => true);
                    break;
            }
        }

        return $results;
    }

    ////////////////////////////END BACKWARDS COMPATIBILITY MODE FOR PRE 5.0 MODULES\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
}
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