add column unique numbering scheme, more efficient selects

app/Console/Commands/ConfirmUser.php

@@ -41,7 +41,5 @@ class ConfirmUser extends Command
         $u = User::resolve($this->argument('user'));
         $u->update(['confirmed' => true]);
         $this->info("User #$u->id with e-mail $u->email and handle @$u->name was confirmed.");
-
-        dd($u);
     }
 }

app/Http/Controllers/TableController.php

@@ -3,15 +3,16 @@
 namespace App\Http\Controllers;
 
 use App\Models\Revision;
-use App\Models\Row;
 use App\Models\Table;
 use App\Models\User;
 use App\Tables\Column;
+use App\Tables\ColumnNumerator;
 use App\Tables\CStructArrayExporter;
 use App\Tables\CsvExporter;
 use App\Tables\CXMacroExporter;
 use App\Tables\JsonExporter;
 use App\Tables\PhpExporter;
+use App\Tables\RowNumerator;
 use Illuminate\Http\Request;
 use Illuminate\Validation\Rule;
 use MightyPork\Exceptions\NotApplicableException;
@@ -41,11 +42,15 @@ class TableController extends Controller
 
         $this->countTableVisit($request, $tableModel);
 
+        $columns = Column::columnsFromJson($revision->columns);
+
+        $rows = $revision->rowsData($columns)->paginate(25, []);
+
         return view('table.view', [
             'table' => $tableModel,
             'revision' => $revision,
-            'columns' => Column::columnsFromJson($revision->columns),
+            'columns' => $columns,
-            'rows' => $revision->rows()->paginate(25),
+            'rows' => $rows,
         ]);
     }
 
@@ -78,6 +83,7 @@ class TableController extends Controller
             "Patella vulgata,common limpet,20";
 
         $columns = Column::columnsFromJson([
+            // fake 'id' to satisfy the check in Column constructor
             ['name' => 'latin',    'type' => 'string', 'title' => 'Latin Name'],
             ['name' => 'common',   'type' => 'string', 'title' => 'Common Name'],
             ['name' => 'lifespan', 'type' => 'int',    'title' => 'Lifespan (years)']
@@ -90,6 +96,9 @@ class TableController extends Controller
         ]);
     }
 
+    /**
+     * Show table settings edit form
+     */
     public function settings(Request $request, User $user, string $table)
     {
         /** @var Table $tableModel */
@@ -102,6 +111,9 @@ class TableController extends Controller
         ]);
     }
 
+    /**
+     * Store modified table settings
+     */
     public function storeSettings(Request $request, User $user, string $table)
     {
         /** @var Table $tableModel */
@@ -149,85 +161,100 @@ class TableController extends Controller
         ]);
 
         // Check if table name is unique for user
-        if ($u->tables()->where('name', $input->name)->exists()) {
+        if ($u->hasTable($input->name)) {
             return $this->backWithErrors([
                 'name' => "A table called \"$input->name\" already exists in your account.",
             ]);
         }
 
+        // --- COLUMNS ---
         // Parse and validate the columns specification
         /** @var Column[] $columns */
         $columns = [];
-        $column_keys = []; // for checking duplicates
+        $col_names = []; // for checking duplicates
         $colsArray = fromJSON($input->columns);
 
         // prevent griefing via long list of columns
         if (count($colsArray) > 100) return $this->backWithErrors(['columns' => "Too many columns"]);
 
-        foreach ($colsArray as $col) {
+        foreach ($colsArray as $colObj) {
-            if (!isset($col->name) || !isset($col->type) || empty($col->name) || empty($col->type)) {
+            // ensure column has a title
-                return $this->backWithErrors(['columns' => "All columns must have at least name and type."]);
+            if (!isset($colObj->title)) {
+                $colObj->title = $colObj->name;
             }
 
             try {
-                if (in_array($col->name, $column_keys)) {
+                if (in_array($colObj->name, $col_names)) {
-                    return $this->backWithErrors(['columns' => "Duplicate column: $col->name"]);
+                    return $this->backWithErrors(['columns' => "Duplicate column: $colObj->name"]);
                 }
-                $column_keys[] = $col->name;
 
-                if (!isset($col->title)) $col->title = $col->name;
+                $col_names[] = $colObj->name;
-                $columns[] = new Column($col);
+                $columns[] = new Column($colObj);
             } catch (\Exception $e) {
+                // validation errors from the Column constructor
                 return $this->backWithErrors(['columns' => $e->getMessage()]);
             }
         }
-        if (count($columns) == 0) return $this->backWithErrors(['columns' => "Define at least one column"]);
+        if (count($columns) == 0) {
+            return $this->backWithErrors(['columns' => "Define at least one column"]);
+        }
 
-        $rowTable = array_map('str_getcsv', explode("\n", $input->data));
+        // Now assign column IDs
+        $columnNumerator = new ColumnNumerator(count($columns));
+        foreach ($columns as $column) {
+            $column->setID($columnNumerator->next());
+        }
+
+        // --- DATA ---
+        $dataCsvLines = array_map('str_getcsv', explode("\n", $input->data));
 
         // Preparing data to insert into the Rows table
-        $rowsData = null;
+        $rowsToInsert = null;
+        $rowNumerator = null;
         try {
-            $grid_range = Row::allocateGRIDs(count($rowTable));
+            $rowsToInsert = collect($dataCsvLines)->map(function ($row) use ($columns) {
-            $grid_cnt = $grid_range[0];
+                if (count($row) == 0 || count($row) == 1 && $row[0] == '') return null; // discard empty lines
-
-            $rowsData = array_map(function ($row) use ($columns, &$grid_cnt) {
-                if (count($row) == 0 || count($row) == 1 && $row[0] == '') return null;
                 if (count($row) != count($columns)) {
                     throw new NotApplicableException("All rows must have " . count($columns) . " fields.");
                 }
 
-                $parsed = [
+                $data = [];
-                    '_grid' => $grid_cnt++
-                ];
 
                 foreach ($row as $i => $val) {
-                    $key = $columns[$i]->name;
+                    $col = $columns[$i];
-                    if (strlen($val) > 255) {
+
+                    if (strlen($val) > 1000) {
                         // try to stop people inserting unstructured crap / malformed CSV
-                        throw new NotApplicableException("Value for column $key too long.");
+                        throw new NotApplicableException("Value for column {$col->name} too long.");
                     }
-                    $parsed[$key] = $columns[$i]->cast($val);
+                    $data[$col->id] = $col->cast($val);
                 }
-                return [
-                    'data' => $parsed,
-                ];
-            }, $rowTable);
 
-            $rowsData = array_filter($rowsData);
+                // return in a format prepared for filling eloquent
+                return ['data' => $data];
+            })->filter()->all(); // remove nulls, to array
+
+            // attach _id labels to all rows
+            $rowNumerator = new RowNumerator(count($dataCsvLines));
+            foreach ($rowsToInsert as &$item) {
+                $item['data']['_id'] = $rowNumerator->next();
+            }
         } catch (\Exception $e) {
             return $this->backWithErrors(['data' => $e->getMessage()]);
         }
 
+        // --- STORE TO DB ---
+
+        /* Fields for the new Revision instance */
         $revisionFields = [
             'note' => "Initial revision of table $u->name/$input->name",
             'columns' => $columns,
-            'row_count' => count($rowsData),
+            'row_count' => count($rowsToInsert),
         ];
 
+        /* Fields for the new Table instance */
         $tableFields = [
             'owner_id' => $u->id,
-            'revision_id' => 0,
             'name' => $input->name,
             'title' => $input->title,
             'description' => $input->description,
@@ -235,10 +262,12 @@ class TableController extends Controller
             'origin' => $input->origin,
         ];
 
-        \DB::transaction(function () use ($revisionFields, $tableFields, $rowsData) {
+        /** @var Table $table */
+        $table = null;
+        \DB::transaction(function () use ($revisionFields, $tableFields, $rowsToInsert, &$table) {
             $revision = Revision::create($revisionFields);
 
-            $tableFields['revision_id'] = $revision->id; // to meet the not-null constraint
+            $tableFields['revision_id'] = $revision->id; // current revision (not-null constraint on this FK)
             $table = Table::create($tableFields);
 
             // Attach the revision to the table, set as current
@@ -246,10 +275,10 @@ class TableController extends Controller
             $table->revision()->associate($revision);
 
             // Spawn rows, linked to the revision
-            $revision->rows()->createMany($rowsData);
+            $revision->rows()->createMany($rowsToInsert);
         });
 
-        return redirect(route('table.view', ['user' => $u, 'table' => $input->name]));
+        return redirect($table->viewRoute);
     }
 
     /**
@@ -260,7 +289,7 @@ class TableController extends Controller
      */
     private function countTableVisit(Request $request, Table $table)
     {
-        $cookieName = "view_$table->id";
+        $cookieName = "view_{$table->owner->name}_{$table->name}";
         if (!$request->cookie($cookieName, false)) {
             $ua = $request->userAgent();
             // Filter out suspicious user agents
@@ -271,6 +300,13 @@ class TableController extends Controller
         }
     }
 
+    /**
+     * Simple export via a preset
+     *
+     * @param Request $request
+     * @param User $user
+     * @param string $table
+     */
     public function export(Request $request, User $user, string $table)
     {
         /** @var Table $tableModel */

app/Models/BaseModel.php

@@ -10,7 +10,7 @@ class BaseModel extends Model
 {
     public function getAttribute($key)
     {
-        if (! $key) {
+        if ($this->exists && ! $key) {
             throw new \LogicException("No attribute ".var_export($key, true));
         }
 
@@ -25,7 +25,7 @@ class BaseModel extends Model
      */
     public function getRelationValue($key)
     {
-        if (!method_exists($this, $key)) {
+        if ($this->exists && !method_exists($this, $key)) {
             throw new \LogicException("No attribute or relation ".var_export($key, true));
         }
 

app/Models/Revision.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use App\Tables\Column;
 use Illuminate\Support\Collection;
 use Riesjart\Relaquent\Model\Concerns\HasRelaquentRelationships;
 
@@ -32,7 +33,22 @@ class Revision extends BaseModel
     /** Included rows */
     public function rows()
     {
-        return $this->belongsToMany(Row::class, 'revision_row_pivot');
+        return $this->belongsToMany(Row::class, 'revision_row_pivot')->as('_row_pivot');
+    }
+
+    /** Included rows
+     * @param Column[] $columns
+     * @return \Illuminate\Database\Query\Builder|static
+     */
+    public function rowsData($columns, $withId=true)
+    {
+        $selects = $withId ? ["data->>'_id' as _id"] : [];
+
+        foreach ($columns as $col) {
+            $selects[] = "data->>'$col->id' as $col->name";
+        }
+
+        return $this->rows()->select([])->selectRaw(implode(', ', $selects));
     }
 
     /** Proposal that lead to this revision */

app/Models/Row.php

@@ -6,7 +6,7 @@ namespace App\Models;
  * Row in a data table
  *
  * @property int $id
- * @property string $data - JSONB, always containing _grid
+ * @property string $data - JSONB, always containing _id
  */
 class Row extends BaseModel
 {
@@ -17,12 +17,12 @@ class Row extends BaseModel
     protected $guarded = [];
     public $timestamps = false;
 
-    public function getGridAttribute() {
+    public function getRowIdAttribute() {
-        return $this->data->_grid;
+        return $this->data->_id;
     }
 
-    public function setGridAttribute($value) {
+    public function setRowIdAttribute($value) {
-        $this->data->_grid = $value;
+        $this->data->_id = $value;
     }
 
     /**
@@ -34,21 +34,48 @@ class Row extends BaseModel
      *
      * @return int
      */
-    public static function allocateGRID()
+    public static function allocateRowID()
     {
-        return \DB::selectOne("SELECT nextval('global_row_id_seq') AS grid;")->grid;
+        return \DB::selectOne("SELECT nextval('global_row_id_seq') AS rid;")->rid;
     }
 
     /**
      * Allocate a block of Global Row IDs, application-unique.
      *
-     * @see Row::allocateGRID()
+     * @see Row::allocateRowID()
      *
      * @return int[] first and last
      */
-    public static function allocateGRIDs($count)
+    public static function allocateRowIDs($count)
     {
-        $last = \DB::selectOne("SELECT multi_nextval('global_row_id_seq', ?) AS last_grid;", [$count])->last_grid;
+        $last = \DB::selectOne("SELECT multi_nextval('global_row_id_seq', ?) AS last_id;", [$count])->last_id;
+        return [$last - $count + 1, $last];
+    }
+
+    /**
+     * Allocate a single Global Column ID, application-unique.
+     *
+     * GCIDs are used to uniquely identify existing or proposed new columns,
+     * and are preserved after column modifications, to ensure change proposals have
+     * a clear target. This is the column equivalent of GRID.
+     *
+     * @return int
+     */
+    public static function allocateColID()
+    {
+        return \DB::selectOne("SELECT nextval('global_column_id_seq') AS cid;")->cid;
+    }
+
+    /**
+     * Allocate a block of Global Column IDs, application-unique.
+     *
+     * @see Row::allocateColID()
+     *
+     * @return int[] first and last
+     */
+    public static function allocateColIDs($count)
+    {
+        $last = \DB::selectOne("SELECT multi_nextval('global_column_id_seq', ?) AS last_id;", [$count])->last_id;
         return [$last - $count + 1, $last];
     }
 }

app/Models/User.php

@@ -226,4 +226,14 @@ class User extends BaseModel implements
 
         $this->notify(new ConfirmEmail($newEmail, $confirmation->token));
     }
+
+    /**
+     * Check if this user has a table with the givenname
+     *
+     * @param string $name
+     */
+    public function hasTable(string $name)
+    {
+        $this->tables()->where('name', $name)->exists();
+    }
 }

app/Tables/BaseExporter.php

@@ -128,14 +128,13 @@ abstract class BaseExporter
 
         $start = 0;
         while ($start < $count) {
-            $rows = $revision->rows()->offset($start)->limit($chunkSize)->get();
+            // TODO raw query to allow selecting aggregates, column subsets, etc
+            $rows = $revision->rowsData($this->columns, false)
+                ->offset($start)->limit($chunkSize)->get()->toArray();
 
             foreach ($rows as $row) {
-                $data = $row->data;
+                unset($row['_row_pivot']);
-
+                yield $row;
-                // column renaming, value formatting...
-
-                yield $data;
             }
 
             $start += $chunkSize;

app/Tables/CStructArrayExporter.php

@@ -99,20 +99,7 @@ class CStructArrayExporter extends BaseExporter
                     echo ",";
             }
 
-            $val = 0;
+            $val = $row[$field->name];
-            switch ($field->type) {
-                case 'string':
-                    $val = "";
-                    break;
-
-                case 'bool':
-                    $val = false;
-                    break;
-            }
-
-            if (isset($row->{$field->name})) {
-                $val = $row->{$field->name};
-            }
 
             // export to C format
             switch ($field->type) {

app/Tables/Column.php

@@ -11,9 +11,10 @@ use MightyPork\Utils\Utils;
 /**
  * Helper class representing one column in a data table.
  *
+ * @property-read string $id
+ * @property-read string $type
  * @property-read string $name
  * @property-read string $title
- * @property-read string $type
  */
 class Column implements JsonSerializable
 {
@@ -21,9 +22,10 @@ class Column implements JsonSerializable
         'int', 'bool', 'float', 'string'
     ];
 
+    private $id;
+    private $type;
     private $name;
     private $title;
-    private $type;
 
     public static function columnsFromJson($columns)
     {
@@ -36,13 +38,13 @@ class Column implements JsonSerializable
         }, $columns);
     }
 
-    public function __get($name)
+    /**
+     * Set column ID
+     * @param string $id - GCID
+     */
+    public function setID($id)
     {
-        if (property_exists($this, $name)) {
+        $this->id = $id;
-            return $this->$name;
-        }
-
-        throw new NotApplicableException("No such column property");
     }
 
     /**
@@ -52,18 +54,32 @@ class Column implements JsonSerializable
      */
     public function __construct($obj)
     {
-        $b = new \objBag($obj);
+        $b = objBag($obj);
+
+        if (!$b->has('name')) throw new NotApplicableException('Missing name in column');
+        if (!$b->has('type')) throw new NotApplicableException('Missing type in column');
+
+        if ($b->name[0] == '_') { // global row ID
+            throw new NotApplicableException("Column name can't start with underscore.");
+        }
+
+        if (!in_array($b->type, self::colTypes)) {
+            throw new NotApplicableException("\"$b->type\" is not a valid column type.");
+        }
+
+        $this->id = $b->get('id', null);
         $this->name = $b->name;
-        $this->title = $b->title;
         $this->type = $b->type;
-
+        $this->title = $b->title ?: $b->name;
-        if ($this->name == '_grid') { // global row ID
-            throw new NotApplicableException("_grid is a reserved column name.");
     }
 
-        if (!in_array($this->type, self::colTypes)) {
+    public function __get($name)
-            throw new NotApplicableException("\"$this->type\" is not a valid column type.");
+    {
+        if (property_exists($this, $name)) {
+            return $this->$name;
         }
+
+        throw new NotApplicableException("No such column property: $name");
     }
 
     /**
@@ -72,6 +88,7 @@ class Column implements JsonSerializable
     public function toArray()
     {
         return [
+            'id' => $this->id,
             'name' => $this->name,
             'title' => $this->title,
             'type' => $this->type,

app/Tables/ColumnNumerator.php

@@ -0,0 +1,52 @@
+<?php
+
+
+namespace App\Tables;
+
+use App\Models\Row;
+use MightyPork\Utils\Utils;
+
+/**
+ * Generates a sequence of string codes for internal naming of columns
+ *
+ * Produces database-unique lowercase identifiers for created or proposed columns.
+ * Column identifiers are used in row objects to uniquely identify data even if the
+ * revision header (columns object) is modified, such as reordering, changing name,
+ * adding new column in concurrent proposals, etc.
+ *
+ * Thanks to this uniqueness, it could even be possible to compare or merge forks
+ * of the same table.
+ */
+class ColumnNumerator
+{
+    const ALPHABET = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
+                     'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
+
+    /** @var int */
+    private $next;
+    /** @var int */
+    private $last;
+
+    /**
+     * Create numerator for the given number of columns
+     */
+    public function __construct($capacity)
+    {
+        list($this->next, $this->last) = Row::allocateColIDs($capacity);
+    }
+
+    /**
+     * Get next column name, incrementing the internal state
+     *
+     * @return string
+     */
+    public function next()
+    {
+        if ($this->next > $this->last)
+            throw new \OutOfBoundsException("Column numerator has run out of allocated GCID slots");
+
+        $key = Utils::alphabetEncode($this->next, self::ALPHABET);
+        $this->next++;
+        return $key;
+    }
+}

app/Tables/CsvExporter.php

@@ -44,15 +44,7 @@ class CsvExporter extends BaseExporter
         fputcsv($handle, $columnNames, $this->delimiter);
 
         foreach ($this->iterateRows() as $row) {
-            $items = [];
+            fputcsv($handle, array_values($row), $this->delimiter);
-            foreach ($this->columns as $column) {
-                if (isset($row->{$column->name})) {
-                    $items[] = $row->{$column->name};
-                } else {
-                    $items[] = null;
-                }
-            }
-            fputcsv($handle, $items, $this->delimiter);
         }
 
         fclose($handle);

app/Tables/PhpExporter.php

@@ -53,7 +53,7 @@ class PhpExporter extends BaseExporter
 
                 var_export($column->name);
                 echo ' => ';
-                var_export($row->{$column->name});
+                var_export($row[$column->name]);
             }
 
             echo ']';

app/Tables/RowNumerator.php

@@ -0,0 +1,32 @@
+<?php
+
+
+namespace App\Tables;
+
+use App\Models\Row;
+
+class RowNumerator
+{
+    /** @var int */
+    private $next;
+    /** @var int */
+    private $last;
+
+    /**
+     * Create a numerator for the given number of rows.
+     *
+     * @param int $capacity
+     */
+    public function __construct($capacity)
+    {
+        list($this->next, $this->last) = Row::allocateRowIDs($capacity);
+    }
+
+    public function next()
+    {
+        if ($this->next > $this->last)
+            throw new \OutOfBoundsException("Row numerator has run out of allocated GRID slots");
+
+        return $this->next++;
+    }
+}

database/migrations/2018_08_01_204822_add_row_sequence_generator.php

@@ -30,7 +30,7 @@ END;
 $$ LANGUAGE 'plpgsql';
 PGSQL
 );
-        DB::unprepared('CREATE SEQUENCE global_row_id_seq START 0 MINVALUE 0;');
+        DB::unprepared('CREATE SEQUENCE IF NOT EXISTS global_row_id_seq  START 0 MINVALUE 0;');
         // We have to increment manually once before the above function can be used - that is because
         // nextval will return the initial value the first time it's called, so it would not advance by
         // the given step at all. This would give us negative values - not a problem in postgres without unsigned

database/migrations/2018_08_01_213353_make_grid_column_mandatory_in_rows_table.php

@@ -13,7 +13,7 @@ class MakeGridColumnMandatoryInRowsTable extends Migration
      */
     public function up()
     {
-        DB::unprepared("ALTER TABLE rows ADD CONSTRAINT grid_must_exist CHECK (data ? '_grid');");
+        DB::unprepared("ALTER TABLE rows ADD CONSTRAINT grid_must_exist CHECK (data ? '_id');");
     }
 
     /**

database/migrations/2018_08_04_165815_add_column_sequence.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddColumnSequence extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        DB::unprepared('CREATE SEQUENCE IF NOT EXISTS global_column_id_seq START 0 MINVALUE 0;');
+        // mandatory first increment to make the multi_nextval function work
+        DB::select("SELECT nextval('global_column_id_seq') as nv;");
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        DB::unprepared('DROP SEQUENCE IF EXISTS global_column_id_seq;');
+    }
+}

porklib/Utils/Utils.php

@@ -991,4 +991,26 @@ class Utils
 
         throw new FormatException("Bad time interval: \"$time\"");
     }
+
+    /**
+     * Convert number to arbitrary alphabet, using a system similar to EXCEL column numbering.
+     *
+     * @param int $n
+     * @param string[] $alphabet - array of characters to use
+     * @return string
+     */
+    public static function alphabetEncode($n, $alphabet)
+    {
+        $key = '';
+        $abcsize = count($alphabet);
+        $i = $n;
+
+        do {
+            $mod = $i % $abcsize;
+            $key = $alphabet[$mod] . $key;
+            $i = (($i - $mod) / $abcsize) - 1;
+        } while($i >= 0);
+
+        return $key;
+    }
 }

porklib/helpers.php

@@ -166,6 +166,10 @@ class objBag implements JsonSerializable, ArrayAccess {
     }
 }
 
+/**
+ * @param $obj
+ * @return objBag
+ */
 function objBag($obj) {
 	return new \objBag($obj);
 }

resources/views/table/_rows.blade.php

@@ -10,18 +10,18 @@
 <table class="table table-hover table-sm">
   <thead>
   <tr>
-    <th>#GRID</th>
+    <th>_id</th>
     @foreach($columns as $col)
-      <th>{{ $col->title }}</th>
+      <th>{{$col->name}} ("{{ $col->title }}") [ {{$col->id}} ]</th>
     @endforeach
   </tr>
   </thead>
   <tbody>
   @foreach($rows as $row)
     <tr>
-      <td>{{ $row->data->_grid }}</td>
+      <td>{{ $row->_id }}</td>
       @foreach($columns as $col)
-        <td data-id="{{ $row->id }}">{{ $row->data->{$col->name} }}</td>
+        <td data-id="{{ $row->_id }}">{{ $row->{$col->name} }}</td>
       @endforeach
     </tr>
   @endforeach

routes/login.php

@@ -16,7 +16,9 @@ Route::get('/auth/resend-email-confirmation', 'Auth\ConfirmEmailController@resen
 
 // ----------------- SOCIAL LOGIN --------------------
 
-function _loginVia($method) {
+if (!function_exists('_loginVia')) {
+    function _loginVia($method)
+    {
         $wasLoggedIn = !guest();
 
         try {
@@ -49,6 +51,8 @@ function _loginVia($method) {
                         $cnt++;
                         $user->name = $basename . $cnt;
                     }
+
+                    $user->title = $basename;
                 }
 
                 // set e-mail from provider data, only if user e-mail is empty
@@ -67,7 +71,8 @@ function _loginVia($method) {
             return redirect(route('profile.manage-oauth'));
         else
             return Redirect::intended();
-};
+    }
+}
 
 
 Route::get('/auth/github/authorize', function() {

tests/Feature/ExampleTest.php

@@ -15,7 +15,6 @@ class ExampleTest extends TestCase
     public function testBasicTest()
     {
         $response = $this->get('/');
-
         $response->assertStatus(200);
     }
 }

tests/Unit/ColumnNumeratorTest.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\Tables\ColumnNumerator;
+use Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class ColumnNumeratorTest extends TestCase
+{
+    public function testIncrementsWithDefaultInit()
+    {
+        $n = new ColumnNumerator();
+
+        self::assertEquals('a', $n->next());
+        self::assertEquals('b', $n->next());
+        self::assertEquals('c', $n->next());
+    }
+
+    public function testIncrementsWithCustomInit()
+    {
+        $n = new ColumnNumerator('r');
+
+        self::assertEquals('r', $n->next());
+        self::assertEquals('s', $n->next());
+        self::assertEquals('t', $n->next());
+    }
+
+    public function testIncrementsMultiChar()
+    {
+        $n = new ColumnNumerator('aaa');
+
+        self::assertEquals('aaa', $n->next());
+        self::assertEquals('aab', $n->next());
+        self::assertEquals('aac', $n->next());
+    }
+
+    public function testOverflowGrow()
+    {
+        $n = new ColumnNumerator('y');
+
+        self::assertEquals('y', $n->next());
+        self::assertEquals('z', $n->next());
+        self::assertEquals('aa', $n->next());
+        self::assertEquals('ab', $n->next());
+    }
+
+    public function testOverflowNoGrow()
+    {
+        $n = new ColumnNumerator('yy');
+
+        self::assertEquals('yy', $n->next());
+        self::assertEquals('yz', $n->next());
+        self::assertEquals('za', $n->next());
+        self::assertEquals('zb', $n->next());
+    }
+
+    public function testResume()
+    {
+        $n = new ColumnNumerator('yy');
+        self::assertEquals('yy', $n->next());
+        self::assertEquals('yz', $n->next());
+
+        $n2 = new ColumnNumerator($n->getState());
+        unset($n);
+
+        self::assertEquals('za', $n2->next(), 'recreated numerator continues');
+        self::assertEquals('zb', $n2->next());
+
+        self::assertEquals($n2->getState(), 'zc', 'State is next string');
+    }
+}

tests/Unit/ExampleTest.php

@@ -1,19 +0,0 @@
-<?php
-
-namespace Tests\Unit;
-
-use Tests\TestCase;
-use Illuminate\Foundation\Testing\RefreshDatabase;
-
-class ExampleTest extends TestCase
-{
-    /**
-     * A basic test example.
-     *
-     * @return void
-     */
-    public function testBasicTest()
-    {
-        $this->assertTrue(true);
-    }
-}