lovasoa
47 lines
1.9 KiB
Plaintext
47 lines
1.9 KiB
Plaintext
digraph {
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rankdir=LR;
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node [shape=rectangle, style=rounded, fontname=helvetica];
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edge [arrowhead=normal, arrowtail=crow, dir=both];
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subgraph cluster_browser {
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label = "Web Browser";
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style = filled;
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color = lightgrey;
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node [style=filled, color=white];
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browser [label = "<f0>Web Browser|<f1>"];
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}
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subgraph cluster_sqlpage {
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label = "SQLPage";
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style = filled;
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color = lightblue;
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node [style=filled, color=white];
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read_file [label = "<f0>Read File|<f1>todos.sql"];
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replace_param [label = "<f0>Replace Parameter|<f1>$todo_id with 1"];
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format_results [label = "<f0>Format Results|<f1>as HTML"];
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}
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subgraph cluster_database {
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label = "Database";
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style = filled;
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color = palegreen;
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node [style=filled, color=white];
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execute_query [label = "<f0>Execute|<f1>Query"];
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return_results [label = "<f0>Return|<f1>Results"];
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}
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browser:f1 -> http_request [label = " HTTP GET Request\n/todos.sql?todo_id=1", lhead=cluster_browser];
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http_request -> read_file:f0 [lhead=cluster_sqlpage];
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read_file:f1 -> replace_param:f0;
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replace_param:f1 -> sql_query [label = " SQL Query\nSELECT * FROM todos\nWHERE id = 1", lhead=cluster_sqlpage];
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sql_query -> execute_query:f0 [lhead=cluster_database];
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execute_query:f1 -> return_results:f0;
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return_results:f1 -> result_stream [label = " Result Stream", lhead=cluster_database];
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result_stream -> format_results:f0 [lhead=cluster_sqlpage];
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format_results:f1 -> html_response [label = " HTML Response\nwith Formatted Results", ltail=cluster_sqlpage];
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html_response -> browser:f0 [label = " Display Results", lhead=cluster_browser];
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// Additional Styles
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edge [arrowhead=normal, arrowtail=none, dir=both, fontname=helvetica, fontsize=10];
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node [fontsize=12];
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} |