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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * set of functions used for normalization
 *
 * @package PhpMyAdmin
 */
use PMA\libraries\Message;
use PMA\libraries\Util;

/**
 * build the html for columns of $colTypeCategory category
 * in form of given $listType in a table
 *
 * @param string $db              current database
 * @param string $table           current table
 * @param string $colTypeCategory supported all|Numeric|String|Spatial
 *                                |Date and time using the _pgettext() format
 * @param string $listType        type of list to build, supported dropdown|checkbox
 *
 * @return string HTML for list of columns in form of given list types
 */
function PMA_getHtmlForColumnsList(
    $db, $table, $colTypeCategory='all', $listType='dropdown'
) {
    $columnTypeList = array();
    if ($colTypeCategory != 'all') {
        $types = $GLOBALS['PMA_Types']->getColumns();
        $columnTypeList = $types[$colTypeCategory];
    }
    $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
    $columns = $GLOBALS['dbi']->getColumns(
        $db, $table, null,
        true, $GLOBALS['userlink']
    );
    $type = "";
    $selectColHtml = "";
    foreach ($columns as $column => $def) {
        if (isset($def['Type'])) {
            $extracted_columnspec = Util::extractColumnSpec($def['Type']);
            $type = $extracted_columnspec['type'];
        }
        if (empty($columnTypeList)
            || in_array(mb_strtoupper($type), $columnTypeList)
        ) {
            if ($listType == 'checkbox') {
                $selectColHtml .= '<input type="checkbox" value="'
                    . htmlspecialchars($column) . '"/>'
                    . htmlspecialchars($column) . ' [ '
                    . htmlspecialchars($def['Type']) . ' ]</br>';
            } else {
                $selectColHtml .= '<option value="' . htmlspecialchars($column) . ''
                . '">' . htmlspecialchars($column)
                . ' [ ' . htmlspecialchars($def['Type']) . ' ]'
                . '</option>';
            }
        }
    }
    return $selectColHtml;
}

/**
 * get the html of the form to add the new column to given table
 *
 * @param integer $num_fields number of columns to add
 * @param string  $db         current database
 * @param string  $table      current table
 * @param array   $columnMeta array containing default values for the fields
 *
 * @return string HTML
 */
function PMA_getHtmlForCreateNewColumn(
    $num_fields, $db, $table, $columnMeta=array()
) {
    $cfgRelation = PMA_getRelationsParam();
    $content_cells = array();
    $available_mime = array();
    $mime_map = array();
    if ($cfgRelation['mimework'] && $GLOBALS['cfg']['BrowseMIME']) {
        $mime_map = PMA_getMIME($db, $table);
        $available_mime = PMA_getAvailableMIMEtypes();
    }
    $comments_map = PMA_getComments($db, $table);
    for ($columnNumber = 0; $columnNumber < $num_fields; $columnNumber++) {
        $content_cells[$columnNumber] = array(
            'columnNumber' => $columnNumber,
            'columnMeta' => $columnMeta,
            'type_upper' => '',
            'length_values_input_size' => 8,
            'length' => '',
            'extracted_columnspec' => array(),
            'submit_attribute' => null,
            'comments_map' => $comments_map,
            'fields_meta' => null,
            'is_backup' => true,
            'move_columns' => array(),
            'cfgRelation' => $cfgRelation,
            'available_mime' => isset($available_mime)?$available_mime:array(),
            'mime_map' => $mime_map
        );
    }

    return PMA\libraries\Template::get(
        'columns_definitions/table_fields_definitions'
    )
        ->render(
            array(
            'is_backup' => true,
            'fields_meta' => null,
            'mimework' => $cfgRelation['mimework'],
            'content_cells' => $content_cells
            )
        );
}
/**
 * build the html for step 1.1 of normalization
 *
 * @param string $db           current database
 * @param string $table        current table
 * @param string $normalizedTo up to which step normalization will go,
 * possible values 1nf|2nf|3nf
 *
 * @return string HTML for step 1.1
 */
function PMA_getHtmlFor1NFStep1($db, $table, $normalizedTo)
{
    $step = 1;
    $stepTxt = __('Make all columns atomic');
    $html = "<h3 class='center'>"
        . __('First step of normalization (1NF)') . "</h3>";
    $html .= "<div id='mainContent' data-normalizeto='" . $normalizedTo . "'>" .
        "<fieldset>" .
        "<legend>" . __('Step 1.') . $step . " " . $stepTxt . "</legend>" .
        "<h4>" . __(
            'Do you have any column which can be split into more than'
            . ' one column? '
            . 'For example: address can be split into street, city, country and zip.'
        )
        . "</br>(<a class='central_columns_dialog' data-maxrows='25' "
        . "data-pick=false href='#'> "
        . __(
            'Show me the central list of columns that are not already in this table'
        ) . " </a>)</h4>"
        . "<p class='cm-em'>" . __(
            'Select a column which can be split into more '
            . 'than one (on select of \'no such column\', it\'ll move to next step).'
        )
        . "</p>"
        . "<div id='extra'>"
        . "<select id='selectNonAtomicCol' name='makeAtomic'>"
        . '<option selected="selected" disabled="disabled">'
        . __('Select one…') . "</option>"
        . "<option value='no_such_col'>" . __('No such column') . "</option>"
        . PMA_getHtmlForColumnsList(
            $db,
            $table,
            _pgettext('string types', 'String')
        )
        . "</select>"
        . "<span>" . __('split into ')
        . "</span><input id='numField' type='number' value='2'>"
        . "<input type='submit' id='splitGo' value='" . __('Go') . "'/></div>"
        . "<div id='newCols'></div>"
        . "</fieldset><fieldset class='tblFooters'>"
        . "</fieldset>"
        . "</div>";
    return $html;
}

/**
 * build the html contents of various html elements in step 1.2
 *
 * @param string $db    current database
 * @param string $table current table
 *
 * @return string HTML contents for step 1.2
 */
function PMA_getHtmlContentsFor1NFStep2($db, $table)
{
    $step = 2;
    $stepTxt = __('Have a primary key');
    $primary = PMA\libraries\Index::getPrimary($table, $db);
    $hasPrimaryKey = "0";
    $legendText = __('Step 1.') . $step . " " . $stepTxt;
    $extra = '';
    if ($primary) {
        $headText = __("Primary key already exists.");
        $subText = __("Taking you to next step…");
        $hasPrimaryKey = "1";
    } else {
        $headText = __(
            "There is no primary key; please add one.<br/>"
            . "Hint: A primary key is a column "
            . "(or combination of columns) that uniquely identify all rows."
        );
        $subText = '<a href="#" id="createPrimaryKey">'
            . Util::getIcon(
                'b_index_add.png', __(
                    'Add a primary key on existing column(s)'
                )
            )
            . '</a>';
        $extra = __(
            "If it's not possible to make existing "
            . "column combinations as primary key"
        ) . "<br/>"
            . '<a href="#" id="addNewPrimary">'
            . __('+ Add a new primary key column') . '</a>';
    }
    $res = array(
        'legendText' => $legendText,
        'headText' => $headText,
        'subText' => $subText,
        'hasPrimaryKey' => $hasPrimaryKey,
        'extra' => $extra
    );
    return $res;
}

/**
 * build the html contents of various html elements in step 1.4
 *
 * @param string $db    current database
 * @param string $table current table
 *
 * @return string HTML contents for step 1.4
 */
function PMA_getHtmlContentsFor1NFStep4($db, $table)
{
    $step = 4;
    $stepTxt = __('Remove redundant columns');
    $legendText = __('Step 1.') . $step . " " . $stepTxt;
    $headText = __(
        "Do you have a group of columns which on combining gives an existing"
        . " column? For example, if you have first_name, last_name and"
        . " full_name then combining first_name and last_name gives full_name"
        . " which is redundant."
    );
    $subText = __(
        "Check the columns which are redundant and click on remove. "
        . "If no redundant column, click on 'No redundant column'"
    );
    $extra = PMA_getHtmlForColumnsList($db, $table, 'all', "checkbox") . "</br>"
        . '<input type="submit" id="removeRedundant" value="'
        . __('Remove selected') . '"/>'
        . '<input type="submit" value="' . __('No redundant column')
        . '" onclick="goToFinish1NF();"'
        . '/>';
    $res = array(
        'legendText' => $legendText,
        'headText' => $headText,
        'subText' => $subText,
        'extra' => $extra
    );
    return $res;
}

/**
 * build the html contents of various html elements in step 1.3
 *
 * @param string $db    current database
 * @param string $table current table
 *
 * @return string HTML contents for step 1.3
 */
function PMA_getHtmlContentsFor1NFStep3($db, $table)
{
    $step = 3;
    $stepTxt = __('Move repeating groups');
    $legendText = __('Step 1.') . $step . " " . $stepTxt;
    $headText = __(
        "Do you have a group of two or more columns that are closely "
        . "related and are all repeating the same attribute? For example, "
        . "a table that holds data on books might have columns such as book_id, "
        . "author1, author2, author3 and so on which form a "
        . "repeating group. In this case a new table (book_id, author) should "
        . "be created."
    );
    $subText = __(
        "Check the columns which form a repeating group. "
        . "If no such group, click on 'No repeating group'"
    );
    $extra = PMA_getHtmlForColumnsList($db, $table, 'all', "checkbox") . "</br>"
        . '<input type="submit" id="moveRepeatingGroup" value="'
        . __('Done') . '"/>'
        . '<input type="submit" value="' . __('No repeating group')
        . '" onclick="goToStep4();"'
        . '/>';
    $primary = PMA\libraries\Index::getPrimary($table, $db);
    $primarycols = $primary->getColumns();
    $pk = array();
    foreach ($primarycols as $col) {
        $pk[] = $col->getName();
    }
    $res = array(
        'legendText' => $legendText,
        'headText' => $headText,
        'subText' => $subText,
        'extra' => $extra,
        'primary_key' => json_encode($pk)
    );
    return $res;
}

/**
 * build html contents for 2NF step 2.1
 *
 * @param string $db    current database
 * @param string $table current table
 *
 * @return string HTML contents for 2NF step 2.1
 */
function PMA_getHtmlFor2NFstep1($db, $table)
{
    $legendText = __('Step 2.') . "1 " . __('Find partial dependencies');
    $primary = PMA\libraries\Index::getPrimary($table, $db);
    $primarycols = $primary->getColumns();
    $pk = array();
    $subText = '';
    $selectPkForm = "";
    $extra = "";
    foreach ($primarycols as $col) {
        $pk[] = $col->getName();
        $selectPkForm .= '<input type="checkbox" name="pd" value="'
            . htmlspecialchars($col->getName()) . '">'
            . htmlspecialchars($col->getName());
    }
    $key = implode(', ', $pk);
    if (count($primarycols) > 1) {
        $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
        $columns = (array) $GLOBALS['dbi']->getColumnNames(
            $db, $table, $GLOBALS['userlink']
        );
        if (count($pk) == count($columns)) {
            $headText = sprintf(
                __(
                    'No partial dependencies possible as '
                    . 'no non-primary column exists since primary key ( %1$s ) '
                    . 'is composed of all the columns in the table.'
                ), htmlspecialchars($key)
            ) . '<br/>';
            $extra = '<h3>' . __('Table is already in second normal form.')
                . '</h3>';
        } else {
            $headText = sprintf(
                __(
                    'The primary key ( %1$s ) consists of more than one column '
                    . 'so we need to find the partial dependencies.'
                ), htmlspecialchars($key)
            ) . '<br/>' . __(
                'Please answer the following question(s) '
                . 'carefully to obtain a correct normalization.'
            )
                . '<br/><a href="#" id="showPossiblePd">' . __(
                    '+ Show me the possible partial dependencies '
                    . 'based on data in the table'
                ) . '</a>';
            $subText = __(
                'For each column below, '
                . 'please select the <b>minimal set</b> of columns among given set '
                . 'whose values combined together are sufficient'
                . ' to determine the value of the column.'
            );
            $cnt = 0;
            foreach ($columns as $column) {
                if (!in_array($column, $pk)) {
                    $cnt++;
                    $extra .= "<b>" . sprintf(
                        __('\'%1$s\' depends on:'), htmlspecialchars($column)
                    ) . "</b><br>";
                    $extra .= '<form id="pk_' . $cnt . '" data-colname="'
                        . htmlspecialchars($column) . '" class="smallIndent">'
                        . $selectPkForm . '</form><br/><br/>';
                }
            }
        }
    } else {
        $headText = sprintf(
            __(
                'No partial dependencies possible as the primary key'
                . ' ( %1$s ) has just one column.'
            ), htmlspecialchars($key)
        ) . '<br/>';
        $extra = '<h3>' . __('Table is already in second normal form.') . '</h3>';
    }
    $res = array(
        'legendText' => $legendText,
        'headText' => $headText,
        'subText' => $subText,
        'extra' => $extra,
        'primary_key' => $key
    );
    return $res;
}

/**
 * build the html for showing the tables to have in order to put current table in 2NF
 *
 * @param array  $partialDependencies array containing all the dependencies
 * @param string $table               current table
 *
 * @return string HTML
 */
function PMA_getHtmlForNewTables2NF($partialDependencies,$table)
{
    $html = '<p><b>' . sprintf(
        __(
            'In order to put the '
            . 'original table \'%1$s\' into Second normal form we need '
            . 'to create the following tables:'
        ), htmlspecialchars($table)
    ) . '</b></p>';
    $tableName = $table;
    $i = 1;
    foreach ($partialDependencies as $key=>$dependents) {
        $html .= '<p><input type="text" name="' . htmlspecialchars($key)
            . '" value="' . htmlspecialchars($tableName) . '"/>'
            . '( <u>' . htmlspecialchars($key) . '</u>'
            .  (count($dependents)>0?', ':'')
            . htmlspecialchars(implode(', ', $dependents)) . ' )';
        $i++;
        $tableName = 'table' . $i;
    }
    return $html;
}

/**
 * create/alter the tables needed for 2NF
 *
 * @param array  $partialDependencies array containing all the partial dependencies
 * @param object $tablesName          name of new tables
 * @param string $table               current table
 * @param string $db                  current database
 *
 * @return array
 */
function PMA_createNewTablesFor2NF($partialDependencies, $tablesName, $table, $db)
{
    $dropCols = false;
    $nonPKCols = array();
    $queries = array();
    $error = false;
    $headText = '<h3>' . sprintf(
        __('The second step of normalization is complete for table \'%1$s\'.'),
        htmlspecialchars($table)
    ) . '</h3>';
    if (count((array)$partialDependencies) == 1) {
        return array(
            'legendText'=>__('End of step'), 'headText'=>$headText,
            'queryError'=>$error
        );
    }
    $message = '';
    $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
    foreach ($partialDependencies as $key=>$dependents) {
        if ($tablesName->$key != $table) {
            $backquotedKey = implode(', ', Util::backquote(explode(', ', $key)));
            $queries[] = 'CREATE TABLE ' . Util::backquote($tablesName->$key)
                . ' SELECT DISTINCT ' . $backquotedKey
                . (count($dependents)>0?', ':'')
                . implode(',', Util::backquote($dependents))
                . ' FROM ' . Util::backquote($table) . ';';
            $queries[] = 'ALTER TABLE ' . Util::backquote($tablesName->$key)
                . ' ADD PRIMARY KEY(' . $backquotedKey . ');';
            $nonPKCols = array_merge($nonPKCols, $dependents);
        } else {
            $dropCols = true;
        }
    }

    if ($dropCols) {
        $query = 'ALTER TABLE ' . Util::backquote($table);
        foreach ($nonPKCols as $col) {
            $query .= ' DROP ' . Util::backquote($col) . ',';
        }
        $query = trim($query, ', ');
        $query .= ';';
        $queries[] = $query;
    } else {
        $queries[] = 'DROP TABLE ' . Util::backquote($table);
    }
    foreach ($queries as $query) {
        if (!$GLOBALS['dbi']->tryQuery($query, $GLOBALS['userlink'])) {
            $message = Message::error(__('Error in processing!'));
            $message->addMessage('<br /><br />');
            $message->addMessage(
                Message::rawError(
                    $GLOBALS['dbi']->getError($GLOBALS['userlink'])
                )
            );
            $error = true;
            break;
        }
    }
    return array(
        'legendText' => __('End of step'),
        'headText' => $headText,
        'queryError' => $error,
        'extra' => $message
    );
}

/**
 * build the html for showing the new tables to have in order
 * to put given tables in 3NF
 *
 * @param object $dependencies containing all the dependencies
 * @param array  $tables       tables formed after 2NF and need to convert to 3NF
 * @param string $db           current database
 *
 * @return array containing html and the list of new tables
 */
function PMA_getHtmlForNewTables3NF($dependencies, $tables, $db)
{
    $html = "";
    $i = 1;
    $newTables = array();
    foreach ($tables as $table=>$arrDependson) {
        if (count(array_unique($arrDependson)) == 1) {
            continue;
        }
        $primary = PMA\libraries\Index::getPrimary($table, $db);
        $primarycols = $primary->getColumns();
        $pk = array();
        foreach ($primarycols as $col) {
            $pk[] = $col->getName();
        }
        $html .= '<p><b>' . sprintf(
            __(
                'In order to put the '
                . 'original table \'%1$s\' into Third normal form we need '
                . 'to create the following tables:'
            ), htmlspecialchars($table)
        ) . '</b></p>';
        $tableName = $table;
        $columnList = array();
        foreach ($arrDependson as $key) {
            $dependents = $dependencies->$key;
            if ($key == $table) {
                $key = implode(', ', $pk);
            }
            $tmpTableCols =array_merge(explode(', ', $key), $dependents);
            sort($tmpTableCols);
            if (!in_array($tmpTableCols, $columnList)) {
                $columnList[] = $tmpTableCols;
                    $html .= '<p><input type="text" name="'
                        . htmlspecialchars($tableName)
                        . '" value="' . htmlspecialchars($tableName) . '"/>'
                        . '( <u>' . htmlspecialchars($key) . '</u>'
                        .  (count($dependents)>0?', ':'')
                        . htmlspecialchars(implode(', ', $dependents)) . ' )';
                    $newTables[$table][$tableName] = array(
                        "pk"=>$key, "nonpk"=>implode(', ', $dependents)
                    );
                    $i++;
                    $tableName = 'table' . $i;
            }
        }
    }
    return array('html' => $html, 'newTables' => $newTables);
}

/**
 * create new tables or alter existing to get 3NF
 *
 * @param array  $newTables list of new tables to be created
 * @param string $db        current database
 *
 * @return array
 */
function PMA_createNewTablesFor3NF($newTables, $db)
{
    $queries = array();
    $dropCols = false;
    $error = false;
    $headText = '<h3>' .
        __('The third step of normalization is complete.')
        . '</h3>';
    if (count((array)$newTables) == 0) {
        return array(
            'legendText'=>__('End of step'), 'headText'=>$headText,
            'queryError'=>$error
        );
    }
    $message = '';
    $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
    foreach ($newTables as $originalTable=>$tablesList) {
        foreach ($tablesList as $table=>$cols) {
            if ($table != $originalTable) {
                $quotedPk = implode(
                    ', ', Util::backquote(explode(', ', $cols->pk))
                );
                $quotedNonpk = implode(
                    ', ', Util::backquote(explode(', ', $cols->nonpk))
                );
                $queries[] = 'CREATE TABLE ' . Util::backquote($table)
                    . ' SELECT DISTINCT ' . $quotedPk
                    . ', ' . $quotedNonpk
                    . ' FROM ' . Util::backquote($originalTable) . ';';
                $queries[] = 'ALTER TABLE ' . Util::backquote($table)
                    . ' ADD PRIMARY KEY(' . $quotedPk . ');';
            } else {
                $dropCols = $cols;
            }
        }
        if ($dropCols) {
            $columns = (array) $GLOBALS['dbi']->getColumnNames(
                $db, $originalTable, $GLOBALS['userlink']
            );
            $colPresent = array_merge(
                explode(', ', $dropCols->pk), explode(', ', $dropCols->nonpk)
            );
            $query = 'ALTER TABLE ' . Util::backquote($originalTable);
            foreach ($columns as $col) {
                if (!in_array($col, $colPresent)) {
                    $query .= ' DROP ' . Util::backquote($col) . ',';
                }
            }
            $query = trim($query, ', ');
            $query .= ';';
            $queries[] = $query;
        } else {
            $queries[] = 'DROP TABLE ' . Util::backquote($originalTable);
        }
        $dropCols = false;
    }
    foreach ($queries as $query) {
        if (!$GLOBALS['dbi']->tryQuery($query, $GLOBALS['userlink'])) {
            $message = Message::error(__('Error in processing!'));
            $message->addMessage('<br /><br />');
            $message->addMessage(
                Message::rawError(
                    $GLOBALS['dbi']->getError($GLOBALS['userlink'])
                )
            );
            $error = true;
            break;
        }
    }
    return array(
        'legendText' => __('End of step'),
        'headText' => $headText,
        'queryError' => $error,
        'extra' => $message
    );
}
/**
 * move the repeating group of columns to a new table
 *
 * @param string $repeatingColumns comma separated list of repeating group columns
 * @param string $primary_columns  comma separated list of column in primary key
 * of $table
 * @param string $newTable         name of the new table to be created
 * @param string $newColumn        name of the new column in the new table
 * @param string $table            current table
 * @param string $db               current database
 *
 * @return array
 */
function PMA_moveRepeatingGroup(
    $repeatingColumns, $primary_columns, $newTable, $newColumn, $table, $db
) {
    $repeatingColumnsArr = (array)Util::backquote(
        explode(', ', $repeatingColumns)
    );
    $primary_columns = implode(
        ',', Util::backquote(explode(',', $primary_columns))
    );
    $query1 = 'CREATE TABLE ' . Util::backquote($newTable);
    $query2 = 'ALTER TABLE ' . Util::backquote($table);
    $message = Message::success(
        sprintf(
            __('Selected repeating group has been moved to the table \'%s\''),
            htmlspecialchars($table)
        )
    );
    $first = true;
    $error = false;
    foreach ($repeatingColumnsArr as $repeatingColumn) {
        if (!$first) {
            $query1 .= ' UNION ';
        }
        $first = false;
        $query1 .=  ' SELECT ' . $primary_columns . ',' . $repeatingColumn
            . ' as ' . Util::backquote($newColumn)
            . ' FROM ' . Util::backquote($table);
        $query2 .= ' DROP ' . $repeatingColumn . ',';
    }
    $query2 = trim($query2, ',');
    $queries = array($query1, $query2);
    $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
    foreach ($queries as $query) {
        if (!$GLOBALS['dbi']->tryQuery($query, $GLOBALS['userlink'])) {
            $message = Message::error(__('Error in processing!'));
            $message->addMessage('<br /><br />');
            $message->addMessage(
                Message::rawError(
                    $GLOBALS['dbi']->getError($GLOBALS['userlink'])
                )
            );
            $error = true;
            break;
        }
    }
    return array(
        'queryError' => $error, 'message' => $message
    );
}

/**
 * build html for 3NF step 1 to find the transitive dependencies
 *
 * @param string $db     current database
 * @param array  $tables tables formed after 2NF and need to process for 3NF
 *
 * @return string
 */
function PMA_getHtmlFor3NFstep1($db, $tables)
{
    $legendText = __('Step 3.') . "1 " . __('Find transitive dependencies');
    $extra = "";
    $headText = __(
        'Please answer the following question(s) '
        . 'carefully to obtain a correct normalization.'
    );
    $subText = __(
        'For each column below, '
        . 'please select the <b>minimal set</b> of columns among given set '
        . 'whose values combined together are sufficient'
        . ' to determine the value of the column.<br />'
        . 'Note: A column may have no transitive dependency, '
        . 'in that case you don\'t have to select any.'
    );
    $cnt = 0;
    foreach ($tables as $table) {
        $primary = PMA\libraries\Index::getPrimary($table, $db);
        $primarycols = $primary->getColumns();
        $selectTdForm = "";
        $pk = array();
        foreach ($primarycols as $col) {
            $pk[] = $col->getName();
        }
        $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
        $columns = (array) $GLOBALS['dbi']->getColumnNames(
            $db, $table, $GLOBALS['userlink']
        );
        if (count($columns) - count($pk) <= 1) {
            continue;
        }
        foreach ($columns as $column) {
            if (!in_array($column, $pk)) {
                $selectTdForm .= '<input type="checkbox" name="pd" value="'
                . htmlspecialchars($column) . '">'
                . '<span>' . htmlspecialchars($column) . '</span>';
            }
        }
        foreach ($columns as $column) {
            if (!in_array($column, $pk)) {
                $cnt++;
                $extra .= "<b>" . sprintf(
                    __('\'%1$s\' depends on:'), htmlspecialchars($column)
                )
                    . "</b><br>";
                $extra .= '<form id="td_' . $cnt . '" data-colname="'
                    . htmlspecialchars($column) . '" data-tablename="'
                    . htmlspecialchars($table) . '" class="smallIndent">'
                    . $selectTdForm
                    . '</form><br/><br/>';
            }
        }
    }
    if ($extra == "") {
        $headText = __(
            "No Transitive dependencies possible as the table "
            . "doesn't have any non primary key columns"
        );
        $subText = "";
        $extra = "<h3>" . __("Table is already in Third normal form!") . "</h3>";
    }
    $res = array(
        'legendText' => $legendText,
        'headText' => $headText,
        'subText' => $subText,
        'extra' => $extra
    );
    return $res;
}
/**
 * get html for options to normalize table
 *
 * @return string HTML
 */
function PMA_getHtmlForNormalizetable()
{
    $html_output = '<form method="post" action="normalization.php" '
        . 'name="normalize" '
        . 'id="normalizeTable" '
        . '>'
        . PMA_URL_getHiddenInputs($GLOBALS['db'], $GLOBALS['table'])
        . '<input type="hidden" name="step1" value="1">';
    $html_output .= '<fieldset>';
    $html_output .= '<legend>'
        . __('Improve table structure (Normalization):') . '</legend>';
    $html_output .= '<h3>' . __('Select up to what step you want to normalize')
        . '</h3>';
    $choices = array(
            '1nf' => __('First step of normalization (1NF)'),
            '2nf'      => __('Second step of normalization (1NF+2NF)'),
            '3nf'  => __('Third step of normalization (1NF+2NF+3NF)'));

    $html_output .= Util::getRadioFields(
        'normalizeTo', $choices, '1nf', true
    );
    $html_output .= '</fieldset><fieldset class="tblFooters">'
        . "<span class='floatleft'>" . __(
            'Hint: Please follow the procedure carefully in order '
            . 'to obtain correct normalization'
        ) . "</span>"
        . '<input type="submit" name="submit_normalize" value="' . __('Go') . '" />'
        . '</fieldset>'
        . '</form>'
        . '</div>';

    return $html_output;
}

/**
 * find all the possible partial dependencies based on data in the table.
 *
 * @param string $table current table
 * @param string $db    current database
 *
 * @return string HTML containing the list of all the possible partial dependencies
 */
function PMA_findPartialDependencies($table, $db)
{
    $dependencyList = array();
    $GLOBALS['dbi']->selectDb($db, $GLOBALS['userlink']);
    $columns = (array) $GLOBALS['dbi']->getColumnNames(
        $db, $table, $GLOBALS['userlink']
    );
    $columns = (array)Util::backquote($columns);
    $totalRowsRes = $GLOBALS['dbi']->fetchResult(
        'SELECT COUNT(*) FROM (SELECT * FROM '
        . Util::backquote($table) . ' LIMIT 500) as dt;'
    );
    $totalRows = $totalRowsRes[0];
    $primary = PMA\libraries\Index::getPrimary($table, $db);
    $primarycols = $primary->getColumns();
    $pk = array();
    foreach ($primarycols as $col) {
        $pk[] = Util::backquote($col->getName());
    }
    $partialKeys = PMA_getAllCombinationPartialKeys($pk);
    $distinctValCount = PMA_findDistinctValuesCount(
        array_unique(
            array_merge($columns, $partialKeys)
        ), $table
    );
    foreach ($columns as $column) {
        if (!in_array($column, $pk)) {
            foreach ($partialKeys as $partialKey) {
                if ($partialKey
                    && PMA_checkPartialDependency(
                        $partialKey, $column, $table,
                        $distinctValCount[$partialKey],
                        $distinctValCount[$column], $totalRows
                    )
                ) {
                    $dependencyList[$partialKey][] = $column;
                }
            }
        }
    }

    $html = __(
        'This list is based on a subset of the table\'s data '
        . 'and is not necessarily accurate. '
    )
        . '<div class="dependencies_box">';
    foreach ($dependencyList as $dependon=>$colList) {
        $html .= '<span class="displayblock">'
            . '<input type="button" class="pickPd" value="' . __('Pick') . '"/>'
            . '<span class="determinants">'
            . htmlspecialchars(str_replace('`', '', $dependon)) . '</span> -> '
            . '<span class="dependents">'
            . htmlspecialchars(str_replace('`', '', implode(', ', $colList)))
            . '</span>'
            . '</span>';
    }
    if (empty($dependencyList)) {
        $html .= '<p class="displayblock desc">'
            . __('No partial dependencies found!') . '</p>';
    }
    $html .= '</div>';
    return $html;
}
/**
 * check whether a particular column is dependent on given subset of primary key
 *
 * @param string  $partialKey the partial key, subset of primary key,
 * each column in key supposed to be backquoted
 * @param string  $column     backquoted column on whose dependency being checked
 * @param string  $table      current table
 * @param integer $pkCnt      distinct value count for given partial key
 * @param integer $colCnt     distinct value count for given column
 * @param integer $totalRows  total distinct rows count of the table
 *
 * @return boolean TRUE if $column is dependent on $partialKey, False otherwise
 */
function PMA_checkPartialDependency(
    $partialKey, $column, $table, $pkCnt, $colCnt, $totalRows
) {
    $query = 'SELECT '
        . 'COUNT(DISTINCT ' . $partialKey . ',' . $column . ') as pkColCnt '
        . 'FROM (SELECT * FROM ' . Util::backquote($table)
        . ' LIMIT 500) as dt'  . ';';
    $res = $GLOBALS['dbi']->fetchResult($query, null, null, $GLOBALS['userlink']);
    $pkColCnt = $res[0];
    if ($pkCnt && $pkCnt == $colCnt && $colCnt == $pkColCnt) {
        return true;
    }
    if ($totalRows && $totalRows == $pkCnt) {
        return true;
    }
    return false;
}

/**
 * function to get distinct values count of all the column in the array $columns
 *
 * @param array  $columns array of backquoted columns whose distinct values
 * need to be counted.
 * @param string $table   table to which these columns belong
 *
 * @return array associative array containing the count
 */
function PMA_findDistinctValuesCount($columns, $table)
{
    $result = array();
    $query = 'SELECT ';
    foreach ($columns as $column) {
        if ($column) { //each column is already backquoted
            $query .= 'COUNT(DISTINCT ' .  $column . ') as \''
                . $column . '_cnt\', ';
        }
    }
    $query = trim($query, ', ');
    $query .= ' FROM (SELECT * FROM ' . Util::backquote($table)
        . ' LIMIT 500) as dt' . ';';
    $res = $GLOBALS['dbi']->fetchResult($query, null, null, $GLOBALS['userlink']);
    foreach ($columns as $column) {
        if ($column) {
            $result[$column] = $res[0][$column . '_cnt'];
        }
    }
    return $result;
}

/**
 * find all the possible partial keys
 *
 * @param array $primaryKey array containing all the column present in primary key
 *
 * @return array containing all the possible partial keys(subset of primary key)
 */
function PMA_getAllCombinationPartialKeys($primaryKey)
{
    $results = array('');
    foreach ($primaryKey as $element) {
        foreach ($results as $combination) {
            array_push(
                $results, trim($element . ',' . $combination, ',')
            );
        }
    }
    array_pop($results); //remove key which consist of all primary key columns
    return $results;
}

Filemanager

Name Type Size Permission Actions
bfShapeFiles Folder 0755
config Folder 0755
controllers Folder 0755
dbi Folder 0755
di Folder 0755
engines Folder 0755
gis Folder 0755
navigation Folder 0755
plugins Folder 0755
properties Folder 0755
rte Folder 0755
sql-parser Folder 0755
Advisor.php File 15.13 KB 0644
Config.php File 54.7 KB 0644
Console.php File 14.82 KB 0644
DatabaseInterface.php File 95.6 KB 0644
DbList.php File 1.9 KB 0644
DbQbe.php File 68.87 KB 0644
DbSearch.php File 17.21 KB 0644
DisplayResults.php File 206 KB 0644
Error.php File 12.7 KB 0644
ErrorHandler.php File 16.48 KB 0644
File.php File 18.82 KB 0644
Font.php File 4.24 KB 0644
Footer.php File 10.52 KB 0644
Header.php File 25.34 KB 0644
Index.php File 23.79 KB 0644
IndexColumn.php File 4.46 KB 0644
Language.php File 4.27 KB 0644
LanguageManager.php File 20.75 KB 0644
Linter.php File 5.02 KB 0644
ListAbstract.php File 3.15 KB 0644
ListDatabase.php File 4.62 KB 0644
Menu.php File 21.14 KB 0644
Message.php File 18.67 KB 0644
OutputBuffering.php File 3.59 KB 0644
PDF.php File 3.94 KB 0644
Partition.php File 7.26 KB 0644
Psr4Autoloader.php File 4.85 KB 0644
RecentFavoriteTable.php File 11.78 KB 0644
Response.php File 12.61 KB 0644
SavedSearches.php File 11.67 KB 0644
Scripts.php File 7.38 KB 0644
ServerStatusData.php File 15.72 KB 0644
StorageEngine.php File 13.61 KB 0644
SubPartition.php File 3.52 KB 0644
SysInfo.php File 799 B 0644
SysInfoLinux.php File 1.92 KB 0644
SysInfoSunOS.php File 1.86 KB 0644
SysInfoWINNT.php File 3.08 KB 0644
SystemDatabase.php File 3.66 KB 0644
Table.php File 88.12 KB 0644
Template.php File 4.45 KB 0644
Theme.php File 11.34 KB 0644
ThemeManager.php File 12.91 KB 0644
Tracker.php File 30.35 KB 0644
Types.php File 6.08 KB 0644
TypesMySQL.php File 17.26 KB 0644
Util.php File 172.46 KB 0644
VersionInformation.php File 7.87 KB 0644
ZipFile.php File 6.63 KB 0644
advisor.lib.php File 1.6 KB 0644
advisory_rules.txt File 25.94 KB 0644
autoloader.php File 450 B 0644
bookmark.lib.php File 8.5 KB 0644
browse_foreigners.lib.php File 9.83 KB 0644
central_columns.lib.php File 49.38 KB 0644
charset_conversion.lib.php File 3.54 KB 0644
check_user_privileges.lib.php File 10.65 KB 0644
cleanup.lib.php File 1.29 KB 0644
common.inc.php File 34.38 KB 0644
config.default.php File 66.5 KB 0644
config.values.php File 10.17 KB 0644
core.lib.php File 29.94 KB 0644
create_addfield.lib.php File 15.68 KB 0644
database_interface.inc.php File 2.63 KB 0644
db_common.inc.php File 3.12 KB 0644
db_designer.lib.php File 10.4 KB 0644
db_table_exists.lib.php File 3.21 KB 0644
display_change_password.lib.php File 5.45 KB 0644
display_create_table.lib.php File 1.53 KB 0644
display_export.lib.php File 38.11 KB 0644
display_git_revision.lib.php File 3.04 KB 0644
display_import.lib.php File 24.34 KB 0644
display_import_ajax.lib.php File 3.13 KB 0644
display_select_lang.lib.php File 2.36 KB 0644
error.inc.php File 1.21 KB 0644
error_report.lib.php File 10.25 KB 0644
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file_listing.lib.php File 2.37 KB 0644
iconv_wrapper.lib.php File 3.88 KB 0644
import.lib.php File 50.64 KB 0644
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insert_edit.lib.php File 112.79 KB 0644
ip_allow_deny.lib.php File 9.35 KB 0644
js_escape.lib.php File 4.43 KB 0644
kanji-encoding.lib.php File 4.46 KB 0644
language_stats.inc.php File 1.45 KB 0644
logging.lib.php File 521 B 0644
mime.lib.php File 704 B 0644
mult_submits.inc.php File 10.64 KB 0644
mult_submits.lib.php File 20.44 KB 0644
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replication_gui.lib.php File 37.45 KB 0644
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select_server.lib.php File 3.4 KB 0644
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server_common.lib.php File 1.92 KB 0644
server_privileges.lib.php File 179.22 KB 0644
server_status.lib.php File 9.92 KB 0644
server_status_advisor.lib.php File 1.89 KB 0644
server_status_monitor.lib.php File 26.22 KB 0644
server_status_processes.lib.php File 9.57 KB 0644
server_status_queries.lib.php File 4.86 KB 0644
server_status_variables.lib.php File 28.95 KB 0644
server_user_groups.lib.php File 12.8 KB 0644
server_users.lib.php File 1.35 KB 0644
session.inc.php File 5.22 KB 0644
session.lib.php File 735 B 0644
special_schema_links.lib.php File 17.51 KB 0644
sql.lib.php File 77.51 KB 0644
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tbl_info.inc.php File 3.54 KB 0644
tbl_partition_definition.inc.php File 5.55 KB 0644
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user_preferences.inc.php File 2.38 KB 0644
user_preferences.lib.php File 8.17 KB 0644
util.lib.php File 749 B 0644
vendor_config.php File 2.49 KB 0644
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