Add config for db-schema:1.0 + Updated src + Update notice
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@ -35,7 +35,7 @@ The aim of this package is to make your life easier working with database creati
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Features:
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- Manage multiple databases (according to the database-driver)
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- Push a json configuration to a database (mysql)
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- (todo) Pull a database schema to a json file
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- Pull a database schema to a json file
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2 - Usage
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----
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@ -66,25 +66,42 @@ use \dbschema\core\dBuilder;
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```php
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// loads the default schema
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dBuilder::parse();
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$dbuilder = dBuilder::load();
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// loads the custom schema
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dBuilder::parse('custom');
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$dbuilder = dBuilder::load('custom');
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```
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> ### 2) Push the loaded schema to the database
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```php
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// push to the default database
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dBuilder::push();
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$dbuilder->push();
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// push a custom database
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dBuilder::push('custom-db');
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$dbuilder->push('custom-db');
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```
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Note: In the first line, it will use the database-driver default configuration. In the second line, it will use the database-driver `custom` configuration.
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> ### 3) Pull a configuration from a database
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```php
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// pulls into the default schema (default database-driver config)
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$dbuilder = dBuilder::pull();
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// pulls into the custom schema
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$dbuilder = dBuilder::pull('custom');
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// pulls into the default schema ('custom-db' database-driver config)
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$dbuilder = dBuilder::pull(null, 'custom-db');
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// pulls into the custom schema ('custom-db' database-driver config)
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$dbuilder = dBuilder::pull('custom', 'custom-db);
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```
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3 - configuration
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----
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@ -136,31 +153,4 @@ Note: In the first line, it will use the database-driver default configuration.
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## (2) Field types
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### Default types
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|Type|Example|Description|
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|---|---|---|
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|`bool`|`true`|Boolean (true or false)|
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|`boolean`|`true`|Boolean (true or false)|
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|`bit`|`true`|Boolean (true or false)|
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|`char`|`a`|Any character|
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|`int`|`10`|Positive integer number between `0` and `2147483647`|
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|`integer`|`10`|Positive integer number between `0` and `2147483647`|
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|`number`|`10`|Positive integer number between `0` and `2147483647`|
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|`float`|`-10.2`, `23.4`|Any real number|
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|`double`|`-10.2`, `23.4`|Any real number|
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|`decimal`|`-10.2`, `23.4`|Any real number|
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|`real`|`-10.2`, `23.4`|Any real number|
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|`time`|`12:23,32`|Time|
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|`date`|`12-08-2017`|Date|
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|`datetime`|`12-08-2017 12:23,32`|Datetime|
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|`timestamp`|`1504954629`|Timestamp|
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### Complex types
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|Type|Description|
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|---|---|
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|`varchar(a)`|Text of a maximum length of `a`|
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|`double(a,b)`|Decimal number with a size of `a` and a decimal size of `b`|
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|`float(a,b)`|Decimal number with a size of `a` and a decimal size of `b`|
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|`decimal(a,b)`|Decimal number with a size of `a` and a decimal size of `b`|
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|`real(a,b)`|Decimal number with a size of `a` and a decimal size of `b`|
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You must use the default MySQL field types.
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@ -0,0 +1,18 @@
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{
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"default": {
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"user": {
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"id_user": { "type": "int", "primary": true, "auto_increment": true },
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"username": { "type": "varchar(30)", "unique": true, "null": false },
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"description": { "type": "text", "default": null }
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},
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"article": {
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"id_article": { "type": "int", "primary": true, "auto_increment": true },
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"#id_writer": { "type": "int", "ref": [ "user", "id_user" ] },
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"title": { "type": "varchar(50)", "null": false },
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"body": { "type": "text", "null": false }
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}
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}
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}
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@ -9,20 +9,33 @@
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// Constantes
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private static function config_path(){ return __ROOT__.'/config/dbschema.json'; }
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private static function config_path(){ return __ROOT__.'/config/db-schema.json'; }
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// Private attributes
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private static $raw = null;
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private $raw = null;
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/* [0] Constructor
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*
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* @raw<array> Creates an instance from a json
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*
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=========================================================*/
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private function __construct($raw=[]){
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$this->raw = $raw;
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}
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/* [1] Builds a local schema from the json file
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*
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* @return status False on error
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* @label<String> The database label
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*
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* @return instance<dBuilder> dBuilder instance -> NULL on error
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*
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=========================================================*/
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public static function parse(){
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public static function load($label=null){
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/* [1] Extract config file
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=========================================================*/
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@ -30,22 +43,28 @@
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/* (1) Check if file exists */
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if( !file_exists($conf) )
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return false;
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return null;
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/* (2) Try to read file */
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self::$raw = file_get_contents($conf);
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$RAW = file_get_contents($conf);
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if( self::$raw === false )
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return false;
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if( $RAW === false )
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return null;
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/* (3) Try to parse JSON */
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self::$raw = json_decode(self::$raw, true);
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$RAW = json_decode($RAW, true);
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if( is_null(self::$raw) )
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return false;
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if( is_null($RAW) )
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return null;
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/* (4) Add 'constrain' flag according to '#' before column name */
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foreach(self::$raw as &$table){
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/* (4) If label does not exist -> abort */
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is_null($label) && ($label = 'default');
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if( !isset($RAW[$label]) )
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return null;
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/* (5) Add 'constraint' flag according to '#' before column name */
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foreach($RAW[$label] as &$table){
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foreach($table as $column_name=>$column){
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if( $column_name[0] == '#' ){
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@ -60,7 +79,7 @@
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return true;
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return new self($RAW[$label]);
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}
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@ -69,20 +88,22 @@
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/* [2] Populates a database
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*
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* @label<String> DatabaseDriver label
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* @dblabel<String> DatabaseDriver label
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*
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* @return status False on error
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=========================================================*/
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public static function push($label=null){
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public function push($ddlabel=null){
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$PDO = DatabaseDriver::getPDO($label);
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/* [0] Initialize useful variables
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=========================================================*/
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$PDO = DatabaseDriver::getPDO($ddlabel);
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$QUERY = '';
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$foreign_keys = []; // global foreign keys
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/* [1] For each table create an entry
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=========================================================*/
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foreach(self::$raw as $table_name=>$table){
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foreach($this->raw as $table_name=>$table){
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/* (1) Initialise variables
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---------------------------------------------------------*/
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@ -114,12 +135,8 @@
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if( !isset($column['type']) || !is_string($column['type']) )
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continue;
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/* (2) If incorrect type, ignore column */
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if( ($SQLType = self::checkType($column['type'])) == false )
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continue;
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/* (3) Add corresponding SQL type to the query */
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$QUERY .= "$SQLType";
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/* (2) Add corresponding SQL type to the query */
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$QUERY .= $column['type'];
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/* (2.2) Manage inline constraints (not null, auto_increment)
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@ -147,12 +164,12 @@
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$fk = $column['ref'];
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// {1} Check if the 'ref' field exists in JSON structure //
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if( isset(self::$raw[$fk[0]]) && isset(self::$raw[$fk[0]][$fk[1]]) ){
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if( isset($this->raw[$fk[0]]) && isset($this->raw[$fk[0]][$fk[1]]) ){
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// {2} Check if the type matches //
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$refSQLType = self::checkType(self::$raw[$fk[0]][$fk[1]]['type']);
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$refType = $this->raw[$fk[0]][$fk[1]]['type'];
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if( $refSQLType == $SQLType )
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if( $refType == $column['type'] )
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$foreign_keys[] = [ $table_name, $column_name, $fk[0], $fk[1] ];
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}
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@ -233,76 +250,118 @@
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/* [3] Checks if a given type is correct
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/* [3] Fills a config file from a database
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*
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* @type<Mixed> The human-readable type
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* @label<String> The database label
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* @dblabel<String> DatabaseDriver label
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*
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* @return SQLType<String> The corresponding SQL type
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* FALSE on error
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* @return instance<dBuilder> dBuilder instance -> NULL on error
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*
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=========================================================*/
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private static function checkType($type){
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/* [1] Check complex types
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public static function pull($label=null, $ddlabel=null){
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/* [1] Get basic information (tables)
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=========================================================*/
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/* (1) Varchar
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---------------------------------------------------------*/
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if( preg_match("@^varchar\((\d+)\)$@", $type, $match) )
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return "VARCHAR(${match[1]})";
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/* (1) Initialize raw data */
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$RAW = [];
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/* (2) Double
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---------------------------------------------------------*/
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if( preg_match("@^(?:double|float|decimal|real)\((\d+), ?(\d+)\)$@", $type, $match) )
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return "DOUBLE(${match[1]},${match[2]})";
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/* (2) Get database name */
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$db_name = DatabaseDriver::get()->getConfig()['dbname'];
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/* (3) Get the table list */
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$tabList = DatabaseDriver::getPDO($ddlabel)->query("SHOW TABLES");
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$tabList = $tabList->fetchAll();
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/* (4) Populate raw data */
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foreach($tabList as $field){
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$table_name = $field['Tables_in_'.$db_name];
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$RAW[$table_name] = [];
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}
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/* [2] Check simple types
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/* [2] Get each tables' columns
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=========================================================*/
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/* (1) Boolean
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---------------------------------------------------------*/
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if( $type == 'bool' || $type == 'boolean' || $type == 'bit' )
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return 'BIT';
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foreach($RAW as $table_name=>&$table){
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/* (2) Character
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---------------------------------------------------------*/
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if( $type == 'char' || $type == 'byte' )
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return 'CHAR';
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/* (1) Get column list */
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$colList = DatabaseDriver::getPDO($ddlabel)->query("SHOW COLUMNS FROM $table_name");
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$colList = $colList->fetchAll();
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/* (3) Integer
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---------------------------------------------------------*/
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if( $type == 'int' || $type == 'integer' || $type == 'number' )
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return 'INT';
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/* (2) Add each column to $table array */
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foreach($colList as $column){
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/* (4) Float
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---------------------------------------------------------*/
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if( $type == 'float' || $type == 'double' || $type == 'decimal' || $type == 'real' )
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return 'DOUBLE';
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/* (2.1) Foreign key management */
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$col_name = ($column['Key'] == 'MUL') ? '#'.$column['Field'] : $column['Field'];
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/* (5) Text
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---------------------------------------------------------*/
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if( $type == 'text' )
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return 'TEXT';
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/* (2.2) Fill basic data*/
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$table[$col_name] = [
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'type' => $column['Type']
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];
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/* (6) Date & time
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---------------------------------------------------------*/
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if( $type == 'date' )
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return 'DATE';
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// {2.2.1} PRIMARY KEY //
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if( $column['Key'] == 'PRI' )
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$table[$col_name]['primary'] = true;
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if( $type == 'time' )
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return 'TIME';
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// {2.2.2} NOT NULL //
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if( $column['Null'] == 'NO' )
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$table[$col_name]['null'] = false;
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if( $type == 'datetime' )
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return 'DATETIME';
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// {2.2.3} AUTO_INCREMENT //
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if( $column['Extra'] == 'auto_increment' )
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$table[$col_name]['auto_increment'] = true;
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if( $type == 'timestamp' )
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return 'TIMESTAMP';
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}
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/* (3) Get each tables' constraints */
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// {3.1} Get table constraints //
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$conList = DatabaseDriver::getPDO($ddlabel)->query("SHOW CREATE TABLE $table_name");
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$conList = $conList->fetch()['Create Table'];
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$conLines = explode("\n", $conList);
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// {3.2} For each column -> get constraints //
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foreach($conLines as $i=>$line)
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if( preg_match('/CONSTRAINT `.+` FOREIGN KEY \(`(.+)`\) REFERENCES `(.+)` \(`(.+)`\)+/i', $line, $m) )
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if( isset($table['#'.$m[1]]) )
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$table['#'.$m[1]]['ref'] = [ $m[2], $m[3] ];
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}
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return false;
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/* [3] Extract config file
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=========================================================*/
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$conf = self::config_path();
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}
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/* (1) Check if file exists */
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if( !file_exists($conf) )
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return 1;
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/* (2) Try to read file */
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$OUTDATED = file_get_contents($conf);
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if( $OUTDATED === false )
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return 2;
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/* (3) Try to parse JSON */
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$OUTDATED = json_decode($OUTDATED, true);
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if( is_null($OUTDATED) )
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return 3;
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/* [4] Adds pulled schema + writes
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=========================================================*/
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/* (1) Set $label to default if missing */
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is_null($label) && ($label = 'default');
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/* (2) Adds pulled conf to conf */
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var_dump($RAW);
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$OUTDATED[$label] = $RAW;
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/* (3) Writes down new config */
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file_put_contents(self::config_path(), json_encode($OUTDATED, JSON_PRETTY_PRINT) );
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return self::load($label);
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}
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}
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