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<?php
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namespace App\Http\Controllers;
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use App\Models\Revision;
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use App\Models\Row;
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use App\Models\Table;
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use App\Models\User;
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use App\Utils\Column;
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use Illuminate\Http\Request;
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use MightyPork\Exceptions\NotApplicableException;
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class TableController extends Controller
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{
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/**
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* SHow a form for creating a new table
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*
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* @return \Illuminate\Http\Response
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*/
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public function create()
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{
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$exampleColumns =
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"latin,string,Latin Name\n".
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"common,string,Common Name\n".
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"lifespan,int,Lifespan (years)";
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$exampleData =
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"Mercenaria mercenaria,hard clam,40\n" .
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"Magallana gigas,pacific oyster,30\n" .
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"Patella vulgata,common limpet,20";
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return view('table.create',
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compact('exampleColumns', 'exampleData')
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);
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}
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public function storeNew(Request $request)
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{
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/** @var User $u */
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$u = \Auth::user();
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$this->validate($request, [
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'name' => 'required',
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'title' => 'string',
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'description' => 'string|nullable',
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'license' => 'string|nullable',
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'origin' => 'string|nullable',
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'columns' => 'required',
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'data' => 'string|nullable',
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]);
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// Check if table name is unique for user
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$tabName = $request->get('name');
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if ($u->tables()->where('name', $tabName)->exists()) {
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return $this->backWithErrors([
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'name' => "A table called \"$tabName\" already exists in your account.",
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]);
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}
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// Parse and validate the columns specification
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/** @var Column[] $columns */
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$columns = [];
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$colTable = array_map('str_getcsv', explode("\n", $request->get('columns')));
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foreach ($colTable as $col) {
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$col = array_map('trim', $col);
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if (count($col) < 2) {
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return $this->backWithErrors([
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'columns' => "All columns must have at least name and type.",
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]);
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}
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try {
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$columns[] = new Column([
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'name' => $col[0],
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'type' => $col[1],
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'title' => count($col) >= 3 ? $col[2] : $col[0], // title falls back to =name if not specified,
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]);
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} catch (\Exception $e) {
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return $this->backWithErrors(['columns' => $e->getMessage()]);
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}
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}
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$rowTable = array_map('str_getcsv', explode("\n", $request->get('data')));
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$rowsData = null;
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try {
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$rowsData = array_map(function ($row) use ($columns) {
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if (count($row) != count($columns)) {
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throw new NotApplicableException("All rows must have ".count($columns)." fields.");
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}
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$parsed = [];
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foreach ($row as $i => $val) {
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$key = $columns[$i]->name;
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$parsed[$key] = $columns[$i]->cast($val);
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}
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return [
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'data' => json_encode($parsed),
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'refs' => 1,
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];
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}, $rowTable);
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}catch (\Exception $e) {
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return $this->backWithErrors(['columns' => $e->getMessage()]);
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}
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$revision = Revision::create([
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'refs' => 1, // from the new table
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'note' => "Initial revision of table $u->name/$tabName",
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'columns' => json_encode($columns),
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]);
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$table = Table::create([
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'owner_id' => $u->id,
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'revision_id' => $revision->id,
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'name' => $tabName,
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'title' => $request->get('title'),
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'description' => $request->get('description'),
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'license' => $request->get('license'),
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'origin' => $request->get('origin'),
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]);
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$revision->rows()->createMany($rowsData);
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// Now we create rows, a revision pointing to them, and the table using it.
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return "Ok.";
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}
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}
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