node configure增改接近完成，删除后端还没做

app/EDataCapture/EDataCapture.php

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+<?php
+namespace EdgeManager\EDataCapture;
+
+class EDataCapture {
+    private function set_data() {
+        
+    }
+}

app/EDataCapture/ENodeConfigure.php

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+<?php
+namespace EdgeManager\EDataCapture;
+
+class ENodeConfigure {
+    function __construct(
+        protected $dbconn,
+        protected $post = NULL,
+        protected $get = NULL
+    ) {}
+
+    function add_node() {
+        $table_name = "hf_mes_scada_data_capture_node_data_" . $this -> post['process_code'];
+
+        pg_query($this -> dbconn, "BEGIN");
+        $res1 = pg_query($this -> dbconn, sprintf(
+            "CREATE TABLE IF NOT EXISTS %s(
+                id serial8,
+                code text references hf_mes_scada_data_capture_node_configure(code),
+                v_string text,
+                v_int int,
+                v_float float8,
+                v_bool bool,
+                device_code text,
+                batch text,
+                create_date timestamp
+            )", $table_name
+        ));
+        $res2 = pg_insert(
+            $this -> dbconn,
+            'hf_mes_scada_data_capture_node_configure',
+            $this -> post
+        );
+
+        if ($res1 and $res2)
+            pg_query($this -> dbconn, "COMMIT");
+        else
+            pg_query($this -> dbconn, "ROLLBACK");
+        
+        pg_query($this -> dbconn, sprintf("SELECT create_hypertable('%s','create_date')", $table_name));
+        pg_query($this -> dbconn, sprintf(
+            "CREATE INDEX ON %s (v_string, v_int, v_float, v_bool, create_date DESC)
+            WHERE COALESCE(v_string, v_int::text, v_float::text, v_bool::text) IS NOT NULL
+            ", $table_name
+        ));
+    }
+
+    function remove_node() {
+        
+    }
+
+    function update_node() {
+        return pg_update(
+            $this -> dbconn, 
+            'hf_mes_scada_data_capture_node_configure',
+            $this -> post,
+            ['code' => $this -> post['code']]
+        );
+    }
+
+    function get_nodes() {
+        $res = pg_query($this -> dbconn, "SELECT * FROM hf_mes_scada_data_capture_node_configure");
+        return pg_fetch_all($res);
+    }
+}

app/Init.php

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+<?php
+function init_db($server_name, $user, $password) {
+    $dbconn = pg_connect(sprintf("host=%s user=%s password=%s", $server_name, $user, $password));
+    $res = pg_query("select datname from pg_database");
+    if (find_key_value(pg_fetch_assoc($res), 'datname', 'scada'))
+        pg_query("CREATE DATABASE scada");
+    pg_close($dbconn);
+
+    $dbconn = pg_connect(sprintf("host=%s dbname=scada user=%s password=%s", $server_name, $user, $password));
+    pg_query("CREATE TABLE IF NOT EXISTS hf_mes_scada_data_capture_node_configure (
+        id serial2,
+        code text primary key,
+        name text,
+        type text,
+        flow_code text,
+        process_code text,
+        workstation text,
+        create_date timestamp,
+        note text
+    )");
+    pg_close($dbconn);
+}

app/Utils.php

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+<?php
+function find_key_value($array, $key, $val) {
+    foreach ($array as $item)
+    {
+        if (is_array($item) && find_key_value($item, $key, $val))
+            return true;
+        if (isset($item[$key]) && $item[$key] == $val)
+            return true;
+    }
+    return false;
+}