forked from sheetjs/sheetjs
89 lines
3.0 KiB
JavaScript
89 lines
3.0 KiB
JavaScript
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/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
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var SheetJSSQL = (function() {
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var X;
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if(typeof XLSX !== "undefined") X = XLSX;
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else if(typeof require !== 'undefined') X = require('xlsx');
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else throw new Error("Could not find XLSX");
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var _TYPES = {
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"PGSQL": { t:"text", n:"float8", d:"timestamp", b:"boolean" },
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"MYSQL": { t:"TEXT", n:"REAL", d:"DATETIME", b:"TINYINT" },
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"SQLITE": { t:"TEXT", n:"REAL", d:"TEXT", b:"REAL" }
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}
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function sheet_to_sql(ws, sname, mode) {
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var TYPES = _TYPES[mode || "SQLITE"]
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if(!ws || !ws['!ref']) return;
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var range = X.utils.decode_range(ws['!ref']);
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if(!range || !range.s || !range.e || range.s > range.e) return;
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var R = range.s.r, C = range.s.c;
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var names = new Array(range.e.c-range.s.c+1);
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for(C = range.s.c; C<= range.e.c; ++C){
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var addr = X.utils.encode_cell({c:C,r:R});
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names[C-range.s.c] = ws[addr] ? ws[addr].v : X.utils.encode_col(C);
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}
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for(var i = 0; i < names.length; ++i) if(names.indexOf(names[i]) < i)
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for(var j = 0; j < names.length; ++j) {
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var _name = names[i] + "_" + (j+1);
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if(names.indexOf(_name) > -1) continue;
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names[i] = _name;
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}
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var types = new Array(range.e.c-range.s.c+1);
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for(C = range.s.c; C<= range.e.c; ++C) {
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var seen = {}, _type = "";
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for(R = range.s.r+1; R<= range.e.r; ++R)
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seen[(ws[X.utils.encode_cell({c:C,r:R})]||{t:"z"}).t] = true;
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if(seen.s || seen.str) _type = TYPES.t;
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else if(seen.n + seen.b + seen.d + seen.e > 1) _type = TYPES.t;
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else switch(true) {
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case seen.b: _type = TYPES.b; break;
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case seen.n: _type = TYPES.n; break;
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case seen.e: _type = TYPES.t; break;
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case seen.d: _type = TYPES.d; break;
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}
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types[C-range.s.c] = _type || TYPES.t;
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}
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var out = [];
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var BT = mode == "PGSQL" ? "" : "`";
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var Q = mode == "PGSQL" ? "'" : '"';
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var R = mode == "PGSQL" ? /'/g : /"/g;
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out.push("DROP TABLE IF EXISTS " + BT + sname + BT );
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out.push("CREATE TABLE " + BT + sname + BT + " (" + names.map(function(n, i) { return BT + n + BT + " " + (types[i]||"TEXT"); }).join(", ") + ");" );
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for(R = range.s.r+1; R<= range.e.r; ++R) {
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var fields = [], values = [];
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for(C = range.s.c; C<= range.e.c; ++C) {
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var cell = ws[X.utils.encode_cell({c:C,r:R})];
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if(!cell) continue;
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fields.push(BT + names[C-range.s.c] + BT);
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var val = cell.v;
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switch(types[C-range.s.c]) {
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case TYPES.n: if(cell.t == 'b' || typeof val == 'boolean' ) val = +val; break;
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default: val = Q + val.toString().replace(R, Q + Q) + Q;
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}
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values.push(val);
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}
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out.push("INSERT INTO " + BT +sname+ BT + " (" + fields.join(", ") + ") VALUES (" + values.join(",") + ");");
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}
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return out;
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}
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function book_to_sql(wb, mode) {
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return wb.SheetNames.reduce(function(acc, n) {
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return acc.concat(sheet_to_sql(wb.Sheets[n], n, mode));
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}, []);
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}
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return {
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book_to_sql: book_to_sql,
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sheet_to_sql: sheet_to_sql
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};
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})();
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if(typeof module !== 'undefined') module.exports = SheetJSSQL;
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