Total Complexity | 74 |
Complexity/F | 3.08 |
Lines of Code | 285 |
Function Count | 24 |
Duplicated Lines | 0 |
Ratio | 0 % |
Changes | 5 | ||
Bugs | 0 | Features | 0 |
Complex classes like add/table_methods.js often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
1 | var table_methods = { |
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2 | helper: window.table_helper, |
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3 | BuildRequest: function(rq){ |
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4 | Sort(rq); |
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5 | Filter(rq); |
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6 | |||
7 | function Sort(rq){ |
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8 | function sortBySpan(span, i){ |
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9 | var order = span.innerHTML; |
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10 | if(order.length === 1){ |
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11 | rq.colNo = i; |
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12 | rq.colOrd = order === rq.strDesc ? "desc" : "asc"; |
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13 | } |
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14 | return rq.colNo === i; |
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15 | } |
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16 | var thTags = document.getElementById(rq.tableId) |
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17 | .getElementsByTagName("thead")[0] |
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18 | .getElementsByTagName("th"); |
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19 | var length = thTags.length; |
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20 | for(var i = 0; i < length; i++){ |
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21 | var link = thTags[i].getElementsByTagName("a")[0]; |
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22 | if(link){ |
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23 | var span = link.getElementsByTagName("span")[0]; |
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24 | if(span && sortBySpan(span, i)){ |
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25 | break; |
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26 | } |
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27 | } |
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28 | } |
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29 | } |
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30 | function Filter(rq){ |
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31 | function getFilterFieldsByTableID(tableID){ |
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32 | var fields = {filterBy: null, filter: null}; |
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33 | var filterDiv = getFilterDivByTableIDOrNull(tableID); |
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34 | if(filterDiv !== null){ |
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35 | setFilterBy(fields, filterDiv); |
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36 | setFilterValue(fields, filterDiv); |
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37 | } |
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38 | return fields; |
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39 | } |
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40 | function getFilterDivByTableIDOrNull(tableID){ |
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41 | if(document.getElementById(tableID).parentNode |
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42 | .getElementsByTagName("div").length > 0 |
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43 | ){ |
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44 | var containerDivs = document.getElementById(tableID) |
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45 | .parentNode.getElementsByTagName("div"); |
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46 | for(var i = 0; i < containerDivs.length; i++){ |
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47 | if(containerDivs[i].getAttribute("class") === "filter"){ |
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48 | return containerDivs[i]; |
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49 | } |
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50 | } |
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51 | |||
52 | } |
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53 | return null; |
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54 | } |
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55 | function setFilterBy(fields, filterDiv){ |
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56 | var select = filterDiv.getElementsByTagName("select")[0]; |
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57 | if(select && |
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58 | select.options[select.selectedIndex].value !== "all" |
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59 | ){ |
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60 | fields.filterBy = select.options[select.selectedIndex].value; |
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61 | } |
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62 | } |
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63 | function setFilterValue(fields, filterDiv){ |
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64 | var textObj = filterDiv.getElementsByTagName("input")[0]; |
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65 | if(textObj && textObj.value && textObj.value.length !== 0){ |
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66 | fields.filter = encodeURIComponent(textObj.value.trim()); |
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67 | } |
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68 | } |
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69 | |||
70 | var r = getFilterFieldsByTableID(rq.tableId); |
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71 | if(r.filter !== null){ |
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72 | rq.filter = r.filter; |
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73 | } |
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74 | if(r.filterBy !== null){ |
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75 | rq.filterBy = r.filterBy; |
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76 | } |
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77 | } |
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78 | }, |
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79 | Draw: { |
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80 | Section: function(tableContainer, dt, tSection){ |
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81 | var section = tSection === "tfoot" ? "tfoot" : "tbody"; |
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82 | var tSec = document.getElementById(tableContainer) |
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83 | .getElementsByTagName(section)[0]; |
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84 | Clear(tSec, this.helper.IePrior(9)); |
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85 | for(var i = 0; i < dt.length; i++){ |
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86 | var row = dt[i]; |
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87 | var tRow = document.createElement("tr"); |
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88 | Row(row, tRow); |
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89 | tSec.appendChild(tRow); |
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90 | if(section === "tfoot"){ |
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91 | this.helper.ProcessPaginationLinks(tSec); |
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92 | } |
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93 | } |
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94 | function Clear(tSection, iePrior9){ |
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95 | if(iePrior9){ |
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96 | if(tSection.firstChild){ |
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97 | while(tSection.firstChild){ |
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98 | tSection.removeChild(tSection.firstChild); |
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99 | } |
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100 | } |
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101 | }else{ |
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102 | tSection.innerHTML = ""; |
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103 | } |
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104 | } |
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105 | function Row(row, tRow){ |
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106 | for(var cell in row){ |
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1 ignored issue
–
show
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107 | var tCell = document.createElement("td"); |
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108 | if(typeof row[cell] === "string" || |
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109 | typeof row[cell] === "number" |
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110 | ){ |
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111 | tCell.innerHTML = row[cell]; |
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112 | }else if(typeof row[cell] === "object"){ |
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113 | RowCellFromObject(row, cell, tCell); |
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114 | } |
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115 | tRow.appendChild(tCell); |
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116 | } |
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117 | } |
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118 | function RowCellFromObject(row, cell, tCell){ |
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119 | for(var attr in row[cell]){ |
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1 ignored issue
–
show
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120 | if(typeof row[cell][attr] === "string"){ |
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121 | tCell.innerHTML = row[cell][attr]; |
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122 | }else if(typeof row[cell][attr] === "object"){ |
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123 | for(var v in row[cell][attr]){ |
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1 ignored issue
–
show
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124 | tCell.setAttribute(v, row[cell][attr][v]); |
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125 | } |
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126 | } |
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127 | } |
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128 | } |
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129 | }, |
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130 | Run: function(tableContainer, d, instance){ |
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131 | |||
132 | this.Section.call(instance, tableContainer, d.body); |
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133 | this.Section.call(instance, tableContainer, d.footer, "tfoot"); |
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134 | if(instance.rq !== null){ |
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135 | var hover = document.getElementById(instance.rq.tableId) |
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136 | .getElementsByTagName("th")[instance.rq.colNo].lang; |
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137 | if(hover){ |
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138 | instance.helper.ColumnHover(tableContainer, instance.rq.colNo); |
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139 | } |
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140 | } |
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141 | } |
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142 | }, |
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143 | Export: function(lnk, eType){ |
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144 | var rq = {}; |
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145 | rq.tableId = this.helper.GetParent(lnk, "table").getAttribute("id"); |
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146 | this.BuildRequest(rq); |
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147 | rq.exportType = ["CSV", "Excel"].indexOf(eType) >= 0 ? |
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148 | eType : |
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149 | "csv"; |
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150 | window.open(this.helper.RequestToUrl(rq)); |
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151 | return false; |
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152 | }, |
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153 | Filter: { |
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154 | Run: function(field){ |
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155 | var crntTableId = this.Filter.GetTableId(field); |
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156 | if(crntTableId !== null){ |
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157 | /*var exRq = this.rq;*/ |
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158 | var rq = {}; |
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159 | rq.tableId = crntTableId; |
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160 | rq.strDesc = this.strDesc; |
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161 | rq.strAsc = this.strAsc; |
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162 | this.BuildRequest(rq); |
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163 | this.rq = rq; |
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164 | this.LoadData.Run(this); |
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165 | //@todo exRq match not work |
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166 | /*if(exRq === null |
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167 | || typeof this.rq.filer === "undefined" |
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168 | || this.rq.filter !== exRq.filter |
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169 | || this.rq.filterBy !== exRq.filterBy |
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170 | ){ |
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171 | this.LoadData.Run(this); |
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172 | }*/ |
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173 | } |
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174 | }, |
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175 | GetTableId: function(field){ |
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176 | if(field.tagName.toLowerCase() !== "select"){ |
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177 | return field.getAttribute("data-table-id"); |
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178 | } |
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179 | var f = field.parentNode.parentNode.getElementsByTagName("input")[0]; |
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180 | return '' === f.value ? null : f.getAttribute("data-table-id"); |
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181 | } |
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182 | }, |
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183 | GoPage: { |
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184 | Run: function(lnk){ |
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185 | var rq = {}; |
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186 | rq.tableId = this.helper.GetParent(lnk, "table").getAttribute("id"); |
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187 | rq.strDesc = this.strDesc; |
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188 | rq.strAsc = this.strAsc; |
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189 | this.BuildRequest(rq); |
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190 | rq.pageNo = this.GoPage.GetNo(lnk, rq.tableId); |
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191 | this.rq = rq; |
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192 | this.LoadData.Run(this); |
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193 | return false; |
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194 | }, |
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195 | GetNo: function(lnk, tableId){ |
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196 | //check & serve pagination jump links |
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197 | var jumpDir = lnk.innerHTML.trim().substr(0, 1); |
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198 | if(jumpDir === "+" || jumpDir === "-"){ |
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199 | var current = document.getElementById(tableId) |
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200 | .querySelector("tfoot .paging .a").innerHTML; |
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201 | var jump = lnk.innerHTML.replace("K", "000") |
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202 | .replace("M", "000000000"); |
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203 | var jumpPage = (parseInt(current) + parseInt(jump)); |
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204 | lnk.parentNode.setAttribute("data-page", jumpPage); |
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205 | lnk.style.transform = "none"; |
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206 | } |
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207 | return lnk.parentNode.hasAttribute("data-page") ? |
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208 | lnk.parentNode.getAttribute("data-page") : |
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209 | lnk.innerHTML; |
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210 | } |
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211 | }, |
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212 | LoadData: { |
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213 | tail: null, |
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214 | Run: function(instance){ |
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215 | if(this.tail !== null){ |
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216 | this.tail.abort(); |
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217 | } |
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218 | this.SetVisability(instance.rq.tableId, false); |
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219 | var inst = instance; |
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220 | var xmlhttp = window.XMLHttpRequest ? |
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221 | new XMLHttpRequest() : //IE7+, Firefox, Chrome, Opera, Safari |
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222 | new window.ActiveXObject("Microsoft.XMLHTTP");//IE6, IE5 |
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223 | xmlhttp.onreadystatechange = function(){ |
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224 | if(xmlhttp.readyState === 4 && xmlhttp.status === 200){ |
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225 | var d = JSON.parse(xmlhttp.responseText); |
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226 | inst.Draw.Run(inst.rq.tableId, d, inst); |
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227 | inst.LoadData.SetVisability(inst.rq.tableId, true); |
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228 | window.table.LoadEndCalback(inst.rq.tableId); |
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229 | } |
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230 | }; |
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231 | xmlhttp.open("GET", instance.helper.RequestToUrl(inst.rq), true); |
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232 | xmlhttp.send(); |
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233 | this.tail = xmlhttp; //put at tail to can abort later previous request |
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234 | }, |
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235 | SetVisability: function(tableContainer, flag){ |
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236 | var tbl = document.getElementById(tableContainer); |
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237 | if(flag === true){ |
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238 | tbl.style.filter = "none"; |
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239 | tbl.style.opacity = "1"; |
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240 | tbl.style.cursor = "auto"; |
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241 | }else if(flag === false){ |
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242 | tbl.style.filter = "blur(1px)"; |
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243 | tbl.style.opacity = "0.8"; |
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244 | tbl.style.cursor = "wait"; |
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245 | }else{ |
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246 | console.error("table error in the flag value"); |
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247 | } |
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248 | } |
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249 | }, |
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250 | ReloadData: function(tableId){ |
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251 | var inst = this; |
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252 | var rq = this.helper.RqObject.call(inst, tableId); |
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253 | this.BuildRequest(rq); |
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254 | this.rq = rq; |
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255 | this.LoadData.Run(this); |
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256 | }, |
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257 | Sort: function(colNo, lnk){ |
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258 | var rq = {}; |
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259 | rq.tableId = this.helper.GetParent(lnk, "table").getAttribute("id"); |
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260 | rq.strDesc = this.strDesc; |
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261 | rq.strAsc = this.strAsc; |
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262 | this.BuildRequest(rq); |
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263 | if(Math.round(colNo) === rq.colNo){ |
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264 | rq.colOrd = (rq.colOrd === "asc" ? "desc" : "asc"); |
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265 | }else{ |
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266 | rq.colNo = Math.round(colNo); |
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267 | rq.colOrd = "asc"; |
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268 | } |
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269 | this.rq = rq; |
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270 | this.LoadData.Run(this); |
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271 | ClearAndSetNewSortArrow(rq); |
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272 | |||
273 | function ClearAndSetNewSortArrow(rq){ |
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274 | var headSpans = document.getElementById(rq.tableId) |
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275 | .getElementsByTagName("thead")[0] |
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276 | .getElementsByTagName("span"); |
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277 | var length = headSpans.length; |
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278 | for(var i = 0; i < length; i++){ |
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279 | headSpans[i].innerHTML = ""; |
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280 | } |
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281 | lnk.getElementsByTagName("span")[0].innerHTML = |
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282 | (rq.colOrd === "desc" ? rq.strDesc : rq.strAsc); |
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283 | } |
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284 | } |
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285 | }; |
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286 |
When iterating over the keys of an object, this includes not only the keys of the object, but also keys contained in the prototype of that object. It is generally a best practice to check for these keys specifically: