Updated PDO shell plugin
* Added .save and .show commands to PDO shell plugin
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plugins/com.noccy.pdo.shell/README.md
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39
plugins/com.noccy.pdo.shell/README.md
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# PDO Shell Plugin
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This is a plugin to interactively work with PDO.
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## Usage
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The simplest use is invoking the shell directly:
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$ spark pdo:shell
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PDO[db]>
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You are presented with a prompt containing the string "PDO", follwed by the currently
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selected resource in brackets. Commands start with a period (`.`) and you can get a
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list of the valid commands with `.help`.
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To run a query, you can either run it directly:
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PDO[db]> SELECT id FROM users WHERE username='bob'
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Or let the shell do the escaping for you:
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PDO[db]> .query "SELECT id FROM users WHERE username=?" bob
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You can also read the commands from a file and have them executed as if they were
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entered into the shell:
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$ spark pdo:shell -r sparkrc
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### Selecting the resource
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This can be done from the command line:
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$ spark pdo:shell --db otherdb
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Or from within the shell:
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PDO[db]> .select otherdb
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PDO[otherdb]>
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@ -25,6 +25,8 @@ class PdoShell {
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private array $options = [];
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private ?array $lastQuery = null;
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private array $defaultOptions = [
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'output' => 'table',
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'table.maxwidth' => 40,
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@ -98,6 +100,12 @@ class PdoShell {
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{
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switch ($command) {
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case '.save':
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$this->doSaveCommand($args);
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break;
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case '.show':
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$this->doShowCommand($args);
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break;
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case '.select':
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$this->doSelectCommand($args);
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break;
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@ -127,7 +135,9 @@ class PdoShell {
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{
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$cmds = [
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'.help' => "Show this help",
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'.save FILE' => "Save the last query and result to a .json file",
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'.select RES' => "Select the database resource to query",
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'.show [FILE]' => "Show the last query, or one saved to file",
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'.set [KEY [VALUE]]' => "Set a configuration value",
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'.var [NAME [VALUE]]' => "Set a variable, or show variable value",
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'.exit|.quit' => "Exit the shell",
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@ -139,6 +149,54 @@ class PdoShell {
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}
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}
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private function doSaveCommand(array $args)
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{
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if (empty($this->lastQuery)) {
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$this->output->writeln("<error>No last query to save!</>");
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return;
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}
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$filename = array_shift($args);
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if (empty($filename)) {
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for($n=0;$n<999;$n++) {
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$filename = sprintf("query.%03d.json", $n);
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if (!file_exists($filename)) break;
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}
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}
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file_put_contents($filename, json_encode($this->lastQuery, JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES));
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$this->output->writeln("<info>Wrote {$filename}</>");
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}
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private function doShowCommand(array $args)
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{
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$file = array_shift($args);
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if ($file) {
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if (!file_exists($file)) {
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$this->output->writeln("<error>File not found: {$file}</>");
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return;
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}
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$json = json_decode(file_get_contents($file), true);
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$query = $json['query']??'?';
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$res = $json['result']??[];
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} else {
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$query = $this->lastQuery['query'];
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$res = $this->lastQuery['result'];
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}
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$this->output->writeln("<comment>{$query}</>");
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switch ($this->options['output']) {
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case 'table':
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$this->dumpQueryTable($res);
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break;
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case 'vertical':
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$this->dumpQueryVertical($res);
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break;
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default:
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print_r($res);
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}
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}
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private function doSetCommand(array $args)
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{
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$varname = array_shift($args);
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@ -221,6 +279,14 @@ class PdoShell {
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return;
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}
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$this->lastQuery = [
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'timestamp' => microtime(true),
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'resource' => $this->resource,
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'query' => $query,
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'params' => $params,
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'result' => $res
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];
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switch ($this->options['output']) {
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case 'table':
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$this->dumpQueryTable($res);
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