109 lines
3.5 KiB
PHP
109 lines
3.5 KiB
PHP
<?php
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namespace EdgeManager\EDataCapture;
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class ENodeConfigure {
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function __construct(
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protected $dbconn,
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protected $post = NULL,
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protected $get = NULL
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) {}
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function add_node() {
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$exists = pg_query(sprintf(
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"SELECT EXISTS(
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SELECT 1 FROM hf_mes_scada_data_capture_node_configure WHERE code='%s'
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)", $this -> post['code']
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));
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if (pg_fetch_assoc($exists)['exists'] == 't') {
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return "REPLICATED";
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}
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$table_name = "hf_mes_scada_data_capture_node_data_" . $this -> post['working_subclass'];
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pg_query($this -> dbconn, "BEGIN");
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$res[] = pg_query($this -> dbconn, sprintf(
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"CREATE TABLE IF NOT EXISTS %s (
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id serial8,
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code text references hf_mes_scada_data_capture_node_configure(code),
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v_string text,
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v_int int,
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v_float float8,
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v_bool bool,
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device_code text,
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batch text,
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capture_time timestamp NOT NULL DEFAULT NOW()
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)", $table_name
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));
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$res[] = pg_insert(
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$this -> dbconn,
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'hf_mes_scada_data_capture_node_configure',
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$this -> post
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);
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// 检查一下，如果超表已经有了就不要尝试重复创建了
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$table_exists = pg_query(sprintf(
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"SELECT *
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FROM timescaledb_information.hypertables
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WHERE hypertable_name = '%s'
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", $table_name
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));
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if (!in_array($table_name, pg_fetch_all_columns($table_exists, 1))) {
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$res[] = pg_query($this -> dbconn, sprintf("SELECT create_hypertable('%s', 'capture_time')", $table_name));
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$res[] = pg_query($this -> dbconn, sprintf(
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"CREATE INDEX ON %s (v_string, v_int, v_float, v_bool, capture_time DESC)
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WHERE COALESCE(v_string, v_int::text, v_float::text, v_bool::text) IS NOT NULL
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", $table_name
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));
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}
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if (in_array(false, $res)) {
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pg_query($this -> dbconn, "ROLLBACK");
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return false;
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} else {
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pg_query($this -> dbconn, "COMMIT");
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return true;
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}
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}
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function remove_node() {
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pg_query($this -> dbconn, "BEGIN");
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$res[] = pg_delete(
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$this -> dbconn,
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'hf_mes_scada_data_capture_node_configure',
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$this -> post,
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);
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$exists = pg_query(sprintf(
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"SELECT EXISTS(
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SELECT 1 FROM hf_mes_scada_data_capture_node_configure WHERE code='%s'
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)", $this -> post['working_subclass']
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));
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if (pg_fetch_assoc($exists)['exists'] == 'f') {
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$res[] = pg_query(sprintf(
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"DROP TABLE hf_mes_scada_data_capture_node_data_%s",
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$this -> post['working_subclass']
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));
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}
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if (in_array(false, $res)) {
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pg_query($this -> dbconn, "ROLLBACK");
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return false;
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} else {
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pg_query($this -> dbconn, "COMMIT");
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return true;
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}
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}
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function update_node() {
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return pg_update(
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$this -> dbconn,
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'hf_mes_scada_data_capture_node_configure',
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$this -> post,
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['code' => $this -> post['code']]
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);
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}
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function get_nodes() {
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$res = pg_query($this -> dbconn, "SELECT * FROM hf_mes_scada_data_capture_node_configure");
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return pg_fetch_all($res);
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}
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}
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